+publisher:"Universidade do Rio Grande do Norte" +contributor:("Silva, Djalma Ribeiro da")

Universidade do Rio Grande do Norte

1. Araújo, Nayonara Karolynne Costa de. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .

Degree: 2016, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/21100

► Contamination of groundwater by BTX has been featured in recent decades. This type of contamination is due to small and continuous leaks at gas stations,… (more)

Subjects/Keywords: Adsorção; Alumina; BTX; Tratamento de água

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APA (6^th Edition):

Araújo, N. K. C. d. (2016). Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/21100

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Araújo, Nayonara Karolynne Costa de. “Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .” 2016. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/21100.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Araújo, Nayonara Karolynne Costa de. “Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .” 2016. Web. 16 Oct 2019.

Vancouver:

Araújo NKCd. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2016. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/21100.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Araújo NKCd. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . [Thesis]. Universidade do Rio Grande do Norte; 2016. Available from: http://repositorio.ufrn.br/handle/123456789/21100

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

2. Dantas, Aécia Seleide. Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos .

Degree: 2015, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/21541

► The soil and groundwater contamination through the leakage of underground fuel storage systems at resale points has been a major concern in recent decades. Fuel… (more)

Subjects/Keywords: Monitoramento; Benzeno; Índice de qualidade de água

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APA (6^th Edition):

Dantas, A. S. (2015). Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/21541

Chicago Manual of Style (16^th Edition):

Dantas, Aécia Seleide. “Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos .” 2015. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/21541.

MLA Handbook (7^th Edition):

Dantas, Aécia Seleide. “Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos .” 2015. Web. 16 Oct 2019.

Vancouver:

Dantas AS. Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2015. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/21541.

Council of Science Editors:

Dantas AS. Proposta de modelo de IQA visando o monitoramento de águas subterrâneas contaminadas por hidrocarbonetos . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2015. Available from: http://repositorio.ufrn.br/handle/123456789/21541

Universidade do Rio Grande do Norte

3. Menezes, Yasmin Maria da Silva. Remoção de HPA em água produzida utilizando sistema microemulsionado .

Degree: 2017, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/23879

► Produced water is the largest volume of disposal fluids generated during the production and processing of petroleum and natural gas and its composition can contain… (more)

▼ Produced water is the largest volume of disposal fluids generated during the production and processing of petroleum and natural gas and its composition can contain several toxic compounds, among them are the polycyclic aromatic hydrocarbons (PAH), whose presence causes harmful effects to the environment. This paper discusses a study on the removal of 15 PAH in produced water using a microemulsion system. For this, it was developed a pseudo-ternary phase diagram consisting of produced water enriched with PAH, as the aqueous phase (AP), n-hexane as oily phase (OP) and n-butanol and CTAB as cosurfactant (C) and surfactant (T), respectively, to a right C/T = 4. From the diagram's construction was chosen a spot with a high percentage of AP to test the treatment in the region of interest, Winsor II (WII). This spot (90% AP, 5%C/T and 5% OP) was evaluated in two ways: using a precursor of microemulsion formation only with the AP and the active matter and microemulsion formed at that point, by adding the OP. The qualitative assessment, carried out by means of fluorescence spectroscopy, showed that there was water treatment for both methods, however, the quantitative assessment, carried out by means of high performance liquid chromatography with fluorescence detector (HPLC-FLD), showed that extraction using microemulsion was more efficient. With that, it was performed an simplex centroid experimental planning for the study of the influence of the phases and, thus, it was possible to identify the best point of extraction. The samples were analyzed by HPLC-FLD and its results showed that each PAH presented a different response surface, but all of them showed a maximum extraction at the point with microemulsion composition of 90% AP, 5% C/T and 5% OP. This result shows that this technique is promising for the treatment of produced water in removing HPA, constituting an alternative to the treatment of this reject. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor).

Subjects/Keywords: Água produzida; HPA; Microemulsões; Tensoativo

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APA (6^th Edition):

Menezes, Y. M. d. S. (2017). Remoção de HPA em água produzida utilizando sistema microemulsionado . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/23879

Chicago Manual of Style (16^th Edition):

Menezes, Yasmin Maria da Silva. “Remoção de HPA em água produzida utilizando sistema microemulsionado .” 2017. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/23879.

MLA Handbook (7^th Edition):

Menezes, Yasmin Maria da Silva. “Remoção de HPA em água produzida utilizando sistema microemulsionado .” 2017. Web. 16 Oct 2019.

Vancouver:

Menezes YMdS. Remoção de HPA em água produzida utilizando sistema microemulsionado . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2017. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/23879.

Council of Science Editors:

Menezes YMdS. Remoção de HPA em água produzida utilizando sistema microemulsionado . [Masters Thesis]. Universidade do Rio Grande do Norte; 2017. Available from: http://repositorio.ufrn.br/handle/123456789/23879

Universidade do Rio Grande do Norte

4. Oliveira, Izabel Kaline da Silva. Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS .

Degree: 2017, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/24674

► Chloride is considered an important contaminant of petroleum as it interferes with the process of transportation and refining and can be transferred to the final… (more)

Subjects/Keywords: Cloro; Petróleo; Emulsão; Molécula MgCl; HR-CS MAS

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APA (6^th Edition):

Oliveira, I. K. d. S. (2017). Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/24674

Chicago Manual of Style (16^th Edition):

Oliveira, Izabel Kaline da Silva. “Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS .” 2017. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/24674.

MLA Handbook (7^th Edition):

Oliveira, Izabel Kaline da Silva. “Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS .” 2017. Web. 16 Oct 2019.

Vancouver:

Oliveira IKdS. Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2017. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/24674.

Council of Science Editors:

Oliveira IKdS. Desenvolvimento de método para determinação de cloro em petróleo via molécula MgCl por HR-CS MAS . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2017. Available from: http://repositorio.ufrn.br/handle/123456789/24674

Universidade do Rio Grande do Norte

5. Neri, Renaly dos Santos. Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono .

Degree: 2018, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/25530

► The impacts of corrosion are frequent and occur in various activities. There are several ways of combating impacts, among them the use of micro-emulsified system… (more)

▼ The impacts of corrosion are frequent and occur in various activities. There are several ways of combating impacts, among them the use of micro-emulsified system have been targeted as corrosion inhibitors. Although they are effective in the corrosion control, some have high cost and are toxic to the environment, making its use questionable. In order to fulfill the growing demand for corrosion inhibitors, the objective of the present work was to perform a research about the inhibitory action of almonds oil and hydro-alcoholic extract from vegetal specie Ouratea parviflora. The extract was evaluated in free formand in a microemulsified system, containing the oil of the almonds in your composition, with different concentrations, regarding the corrosion inhibition efficiency into a saline medium (NaCl 3.5%). Was used the method Linear Polarization Resistance method, also determining the behavior and the isotherm of the metal/inhibitor adsorption process. According to the obtained results, the maximum inhibition efficiencies were observed at 67.70% (12.5 ppm), 77.94% (200 ppm) and 85.66% (200 ppm) to the free hydro-alcoholic extract, saline microemulsified system (SME-S) and saline micro-emulsified system with extract (SME-S-EB), respectively. In addition, all the experimental data from the adsorption process fitted the Langmuir isotherm. According to the data calculated from Gibbs free energy, it was detected a spontaneity of the adsorbent inhibitors used in different conditions on the steel surface. The study of getting of inhibitors used in different conditions under the sustainability bias confirmed that these formulations can be considered as sustainable. The results showed that the hydro-alcoholic extract of Ouratea parviflora evaluated in free form and in a microemulsion system containing the oil of the almonds of the same plant species, can be used as alternative sources in the formulation of corrosion inhibitors. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor).

Subjects/Keywords: Corrosão; Inibidor; Microemulsões; Extrato; Ouratea parviflora

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APA (6^th Edition):

Neri, R. d. S. (2018). Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/25530

Chicago Manual of Style (16^th Edition):

Neri, Renaly dos Santos. “Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono .” 2018. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/25530.

MLA Handbook (7^th Edition):

Neri, Renaly dos Santos. “Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono .” 2018. Web. 16 Oct 2019.

Vancouver:

Neri RdS. Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2018. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/25530.

Council of Science Editors:

Neri RdS. Avaliação da eficiência da espécie vegetal ouratea parviflora como inibidor de corrosão em aço carbono . [Masters Thesis]. Universidade do Rio Grande do Norte; 2018. Available from: http://repositorio.ufrn.br/handle/123456789/25530

Universidade do Rio Grande do Norte

6. Galvão, Evelyne Nunes de Oliveira. Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis .

Degree: 2018, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/25699

► The activities involving the management of petroleum origin fuels are inherent to serious environmental risks when associated with the contact of these products with the… (more)

Subjects/Keywords: Passivo ambiental; Postos revendedores de combustíveis; Fase livre; Remediação

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APA (6^th Edition):

Galvão, E. N. d. O. (2018). Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/25699

Chicago Manual of Style (16^th Edition):

Galvão, Evelyne Nunes de Oliveira. “Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis .” 2018. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/25699.

MLA Handbook (7^th Edition):

Galvão, Evelyne Nunes de Oliveira. “Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis .” 2018. Web. 16 Oct 2019.

Vancouver:

Galvão ENdO. Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2018. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/25699.

Council of Science Editors:

Galvão ENdO. Avaliação da remediação de fase livre em um empreendimento de revenda de combustíveis . [Masters Thesis]. Universidade do Rio Grande do Norte; 2018. Available from: http://repositorio.ufrn.br/handle/123456789/25699

Universidade do Rio Grande do Norte

7. Santana, Jildimara de Jesus. Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar .

Degree: 2018, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/26314

► The Produced Water (PW) is one of the oil industry main problems due to its large production volume and high complexity. To carry out its… (more)

▼ The Produced Water (PW) is one of the oil industry main problems due to its large production volume and high complexity. To carry out its disposal in marine environments it is necessary the removal of toxic substances present in the environment, among these substances are metals. Metals when present in the aquatic environment, even at low concentrations, are capable to provocate bioaccumulating in organisms, mainly the filter bivalve molluscs, such as oysters. The present study aimed to evaluate the metal quantification in bivalve molluscs (Crassostrea brasiliana), which serve as marine's waters contamination bioindicators by metals. For this purpose, it was simulated a real produced water discard from the Potiguar Basin, using distinct concentrations in sea water from the Areia Preta / RN beach. The physical-chemical parameters of the water, such as pH, temperature, salinity, dissolved oxygen, total dissolved solids and conductivity were evaluated daily, as well as the tissue of oysters exposed to this citaded conditions. In order to determine the metals Cadmium, Cobalt, Copper, Nickel and Lead, the samples were decomposed with a closed system assisted by microwave radiation using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) for quantification. A decrease in the concentration of all metals in water over time was observed, as expected, according to evidenced by their absorption by oysters. In an environment with higher water content, this absorption is limited. In aquaria containing the highest concentration of produced water, survival was only 70 hours. It was also observed that with a lower concentration of PW and metals in the medium, higher was removal's rate. The results obtained after oyster analysis showed that how lower metal's concentration in water, greater the oysters absorption potential. Therefore, it is concluded that oyster exposure tests in front of the produced water show that these can function as indicative species for contamination of aquatic environments and Inductively Coupled Plasma Optical Emission Spectrometry technique was efficient in determination of metals in the studied matrixes, showing good linearity (r2>0.998 for all metals determined with DPR <5%) and quantification limits between 0.0003 and 0.0045 mg L-1. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor).

Subjects/Keywords: Ostras; Metais; ICP OES; Água produzida

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APA (6^th Edition):

Santana, J. d. J. (2018). Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/26314

Chicago Manual of Style (16^th Edition):

Santana, Jildimara de Jesus. “Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar .” 2018. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/26314.

MLA Handbook (7^th Edition):

Santana, Jildimara de Jesus. “Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar .” 2018. Web. 16 Oct 2019.

Vancouver:

Santana JdJ. Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2018. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/26314.

Council of Science Editors:

Santana JdJ. Avaliação da bioacumulação de metais tóxicos em ostras, em condições simuladas do descarte da água produzida no mar . [Masters Thesis]. Universidade do Rio Grande do Norte; 2018. Available from: http://repositorio.ufrn.br/handle/123456789/26314

Universidade do Rio Grande do Norte

8. Ramalho, Adriana Margarida Zanbotto. Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal .

Degree: 2013, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/13028

► Activities that have fuel subterranean storage system are considered potentially polluting fuels by CONAMA Resolution 273, due to the possibility of leak, outpouring and overflow… (more)

▼ Activities that have fuel subterranean storage system are considered potentially polluting fuels by CONAMA Resolution 273, due to the possibility of leak, outpouring and overflow of fuel into the ground. Being even more worrying when contaminate groundwater for public supply, as the case of Natal City. For this reason, the Public Ministry/RN, in partnership with UFRN, developed the project environmental suitability of Gas stations in Natal, of which 36% showed evidence of contamination. This paper describes the four stages of the management of contaminated areas: preliminary assessment of environmental liabilities, detailed confirmatory investigation of the contamination, risk analysis to human health (RBCA), as well as the remediation plan of degraded areas. Therefore it is presented a case study. For the area investigated has been proposed a mathematical method to estimate the volume of LNAPL by a free CAD software (ScketchUp) and compare it with the partition method for grid area. Were also performed 3D graphics designs of feathers contamination. Research results showed that passive benzene contamination in groundwater was 2791.77 μg/L, when the maximum allowed by CONAMA Resolution 420 is 5 μg/L which is the potability standards. The individual and cumulative risks were calculated from 4.4 x10-3, both above the limits of 1.0 x10-5 or by RBCA 1.0 x10-6 by the Public Ministry/RN. Corrective action points that remediation of dissolved phase benzene is expected to reach a concentration of 25 μg/L, based on carcinogenic risk for ingestion of groundwater by residents residential, diverging legislation. According to the proposed model, the volume of LNAPL using the ScketchUp was 17.59 m3, while by the grid partitioning method was 14.02 m3. Because of the low recovery, the expected removal of LNAPL is 11 years, if the multiphase extraction system installed in the enterprise is not optimized Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Poluição ambiental. Áreas contaminadas. Postos revendedores de combustíveis. Saúde humana. Análise de risco. Passivo ambiental; Contaminated areas. Fuel stations. Environmental liability. Human ealth risk analysis. RBCA. Remediation. LNAPL.

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APA (6^th Edition):

Ramalho, A. M. Z. (2013). Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/13028

Chicago Manual of Style (16^th Edition):

Ramalho, Adriana Margarida Zanbotto. “Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal .” 2013. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/13028.

MLA Handbook (7^th Edition):

Ramalho, Adriana Margarida Zanbotto. “Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal .” 2013. Web. 16 Oct 2019.

Vancouver:

Ramalho AMZ. Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2013. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/13028.

Council of Science Editors:

Ramalho AMZ. Investigação e gerenciamento de áreas contaminadas por postos revendedores de combustíveis em Natal . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2013. Available from: http://repositorio.ufrn.br/handle/123456789/13028

Universidade do Rio Grande do Norte

9. Frota, Tarcila Maria Pinheiro. Incrustação em poço produtor de petróleo e gás natural: um estudo de caso .

Degree: 2009, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/19380

► Water and gas is a common by - product of the oil production process. Production may be compromised by the precipitation of inorganic salts in… (more)

▼ Water and gas is a common by - product of the oil production process. Production may be compromised by the precipitation of inorganic salts in both the reservoir and producing well, through scale formation. This precipitation is likely the cause of the formation damage. High temperatures and h igh pressures (HTHP) may favor the precipitation of insoluble salts. The most common types of scale in oil fields are calcium carbonate and calcium sulphate, strontium and barium sulphate. New types of scale formation have attracted special attention such as zinc sulphide and lead. This precipitation may occur in the pores of reservoir rocks, in the production string and in equipment, causing obstructions and consequent production losses. In this study, the influence of well depth on incrustation compositio n was investigated to design removal treatments and assess the behavior of these deposits along the string, through the analysis of pressure and temperature. Scale residues were recovered from the inside of the production string of an oil and gas well duri ng the string removal operation. A total of 10 samples from different depths (15.4 m to 4061.5 m) were obtained. Initially a dissolution test was conducted in weak acid, similar to that used in removal operations with this type of scale formation. Majority composition was defined and confirmed by dissolution tests using X - Ray Fluorescence Spectroscopy (XRF), X - Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) techniques. Residues with distinct characteristics were observed in different proportion s, showing a tendency toward increased and/or decreased mass with depth. In the samples closest to the surface, typical sandstone residues were found, with calcium (45% Ca) as the metal of highest concentration. The obtained results indicate correlations o f the scale types studied with the depth and, consequently, with the thermodynamic conditions of pressure and temperature. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Incrustação; Coluna de produção; Deposição inorgânica

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APA (6^th Edition):

Frota, T. M. P. (2009). Incrustação em poço produtor de petróleo e gás natural: um estudo de caso . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/19380

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Frota, Tarcila Maria Pinheiro. “Incrustação em poço produtor de petróleo e gás natural: um estudo de caso .” 2009. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/19380.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Frota, Tarcila Maria Pinheiro. “Incrustação em poço produtor de petróleo e gás natural: um estudo de caso .” 2009. Web. 16 Oct 2019.

Vancouver:

Frota TMP. Incrustação em poço produtor de petróleo e gás natural: um estudo de caso . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2009. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/19380.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Frota TMP. Incrustação em poço produtor de petróleo e gás natural: um estudo de caso . [Thesis]. Universidade do Rio Grande do Norte; 2009. Available from: http://repositorio.ufrn.br/handle/123456789/19380

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

10. Leopoldino, Kleison José Medeiros. Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) .

Degree: 2017, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/23750

► Obtaining and chemical modification of starch from forage Palma (Opuntia ficus indica) is the object of study of this work. The starch was extracted from… (more)

▼ Obtaining and chemical modification of starch from forage Palma (Opuntia ficus indica) is the object of study of this work. The starch was extracted from cactus pear presented purity 99.30% and modified routes this starch were oxidation and phosphorylation with the assessment of the effects of this change. The starch was modified by sodium periodate to the oxidation process, while for the phosphorylation process was varied the concentration of sodium tripolyphosphate compared to reaction times in order to establish phosphorus limits suitable for use in foods based on Codex Alimentarius . The results showed an increase in phosphorus content to give maximum accordance with the rules in time 40 minutes with 7% sodium tripolyphosphate. The results further indicated that both factors studied (time, concentration) influence the starch phosphate treatment due to the interaction of these independent variables. Of the properties evaluated the native and modified starch were determined chemical composition, phosphorus, starch, amylose and the shape and size of the starch granules. Chemical modification of starch caused higher phosphorus and ash and decreased levels of starch and amylose, achieving experimentally most phosphating according to the legislation in time from 40 minutes to 7% of sodium tripolyphosphate after going through a process dialysis. The functional properties of the samples were analyzed on native starch and modified and determined density, swelling power, solubility index characterizing the gel turbidity, syneresis, paste viscosity, calorimetric analysis. The native starch from cactus pear density showed 1.67 g.mL-1 and the modification decreased the density of native starch. The swelling power and solubility index of the native and modified starch showed significant differences. The modification also decreased the absorbance because it facilitates the passage of light, while syneresis was influenced by modifying, with an increase in the storage cycle number, and a decrease in chemical modification. The phosphate starch showed higher viscosity slurry than native starch because they possess greater power of swelling and solubility rate in water. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Amido modificado; Palma forrageira; Fosforilação; Oxidação

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Leopoldino, K. J. M. (2017). Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/23750

Chicago Manual of Style (16^th Edition):

Leopoldino, Kleison José Medeiros. “Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) .” 2017. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/23750.

MLA Handbook (7^th Edition):

Leopoldino, Kleison José Medeiros. “Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) .” 2017. Web. 16 Oct 2019.

Vancouver:

Leopoldino KJM. Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2017. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/23750.

Council of Science Editors:

Leopoldino KJM. Extração e caracterização de amido nativo e modificado da palma forrageira (Opuntia ficus indica) . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2017. Available from: http://repositorio.ufrn.br/handle/123456789/23750

Universidade do Rio Grande do Norte

11. Medeiros, Hena Lissa de Sousa. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .

Degree: 2015, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/20491

► Produced water is a major waste generated during oil exploration and production. Due to its large volume and complex chemical composition an effort arises so… (more)

▼ Produced water is a major waste generated during oil exploration and production. Due to its large volume and complex chemical composition an effort arises so that the contaminant concentrations meet the current legislation, in order to reduce harmful effects on the environment caused by its disposal without prior treatment. The objective of this paper is to characterize produced water from the Periquito field, RN, Brazil, and assess the adsorptive potential of babassu nut charcoal for removal of calcium and strontium from produced water, focusing on its suitability for disposal. Through the physicochemical characterization of the produced water, it was possible to observe that the concentrations of calcium and strontium were: 322 mg/L and 69 mg/L, respectively. The material to be used as an adsorbent was characterized through different physicochemical techniques, such as laser particle size, density, elemental analysis, thermal analysis, XRF, SEM, XRD and pHPZC. Provided the characterization analysis, adsorption experiments were carried out using the method of finite bath in synthetic solutions of both calcium and strontium. The results showed that babassu nut charcoal has maximum adsorption removal at low concentrations. In parallel with the study on adsorption in synthetic solutions, adsorption experiments were performed with produced water, whose results showed that babassu nut charcoal has good adsorption potential, removing over 50% of calcium and above 45% strontium, and having values of 17.31 mg/g for the adsorption capacity for calcium and 3.15 mg/g for strontium. In order to optimize the experiments, the full factorial design of two levels was applied in order to verify the influence of the concentration of calcium, strontium and the mass of the adsorbent in synthetic solution on the percentage of removal (%) and the adsorption capacity of adsorption of these metals. From the analysis results, it was possible to observe that the optimal regions for the removal of these metals was in the upper level of the metal concentration and in the upper level of the adsorbent mass (+1, +1) obtaining a maximum removal of 58 % for calcium and 63 % for strontium. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Água produzida; Adsorção; Carvão vegetal de coco babaçu; Cálcio; Estrôncio

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Medeiros, H. L. d. S. (2015). Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/20491

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Medeiros, Hena Lissa de Sousa. “Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .” 2015. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/20491.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Medeiros, Hena Lissa de Sousa. “Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .” 2015. Web. 16 Oct 2019.

Vancouver:

Medeiros HLdS. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2015. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/20491.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Medeiros HLdS. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . [Thesis]. Universidade do Rio Grande do Norte; 2015. Available from: http://repositorio.ufrn.br/handle/123456789/20491

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

12. Medeiros, Hena Lissa de Sousa. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .

Degree: 2015, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/20491

► Produced water is a major waste generated during oil exploration and production. Due to its large volume and complex chemical composition an effort arises so… (more)

▼ Produced water is a major waste generated during oil exploration and production. Due to its large volume and complex chemical composition an effort arises so that the contaminant concentrations meet the current legislation, in order to reduce harmful effects on the environment caused by its disposal without prior treatment. The objective of this paper is to characterize produced water from the Periquito field, RN, Brazil, and assess the adsorptive potential of babassu nut charcoal for removal of calcium and strontium from produced water, focusing on its suitability for disposal. Through the physicochemical characterization of the produced water, it was possible to observe that the concentrations of calcium and strontium were: 322 mg/L and 69 mg/L, respectively. The material to be used as an adsorbent was characterized through different physicochemical techniques, such as laser particle size, density, elemental analysis, thermal analysis, XRF, SEM, XRD and pHPZC. Provided the characterization analysis, adsorption experiments were carried out using the method of finite bath in synthetic solutions of both calcium and strontium. The results showed that babassu nut charcoal has maximum adsorption removal at low concentrations. In parallel with the study on adsorption in synthetic solutions, adsorption experiments were performed with produced water, whose results showed that babassu nut charcoal has good adsorption potential, removing over 50% of calcium and above 45% strontium, and having values of 17.31 mg/g for the adsorption capacity for calcium and 3.15 mg/g for strontium. In order to optimize the experiments, the full factorial design of two levels was applied in order to verify the influence of the concentration of calcium, strontium and the mass of the adsorbent in synthetic solution on the percentage of removal (%) and the adsorption capacity of adsorption of these metals. From the analysis results, it was possible to observe that the optimal regions for the removal of these metals was in the upper level of the metal concentration and in the upper level of the adsorbent mass (+1, +1) obtaining a maximum removal of 58 % for calcium and 63 % for strontium. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Água produzida; Adsorção; Carvão vegetal de coco babaçu; Cálcio; Estrôncio

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Medeiros, H. L. d. S. (2015). Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/20491

Chicago Manual of Style (16^th Edition):

Medeiros, Hena Lissa de Sousa. “Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .” 2015. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/20491.

MLA Handbook (7^th Edition):

Medeiros, Hena Lissa de Sousa. “Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu .” 2015. Web. 16 Oct 2019.

Vancouver:

Medeiros HLdS. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2015. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/20491.

Council of Science Editors:

Medeiros HLdS. Estudo da adsorção do cálcio e estrôncio da água produzida utilizando carvão babaçu . [Masters Thesis]. Universidade do Rio Grande do Norte; 2015. Available from: http://repositorio.ufrn.br/handle/123456789/20491

Universidade do Rio Grande do Norte

13. Araújo, Nayonara Karolynne Costa de. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .

Degree: 2016, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/21100

► Contamination of groundwater by BTX has been featured in recent decades. This type of contamination is due to small and continuous leaks at gas stations,… (more)

▼ Contamination of groundwater by BTX has been featured in recent decades. This type of contamination is due to small and continuous leaks at gas stations, causing serious problems to public health and the environment. Based on these antecedents, the search for new alternatives for treating contaminated water is shown to be essential. Therefore, this study aimed to evaluate the efficiency of removal of BTX by adsorption processes employing commercial alumina (Al2O3) and alumina supported with iron (Fe/Al2O3) as adsorbents. It was prepared by a in a synthetic gasoline solution and distilled water to simulate an actual sample. Initially, the adsorbents were characterized by techniques XRD, TG / DTG, XRF, FTIR and SEM/EDS, several trials, where he was placed synthetic solution to react in the presence of Al2O3 and Fe/Al2O3 in a closed, mechanical stirring system were performed varying the catalyst concentration 2, 4 and 6 g.L-1 every 0, 10, 30 60, 90 and 120 min, aliquots were taken and brought to analysis by gas chromatography flame ionization with headspace extraction. The results indicated that the absorbent which has higher BTX removal capacity was the Fe/Al2O3 at a concentration of 6 g.L-1, pH = 4 and time of 90 minutes reaction, resulting in an efficiency, resulting in a 86,5% efficiency for benzene removal, for the 95,4% toluene, 90,8% for ɱ,ρ- xylene and 93.7% for the θ-xylenes. Subsequently, we performed a kinetic study of the reactions, the values of experimental adsorption capacity (qe) showed agreement with the values of the theoretical adsorption capacity (qc) to the pseudo-second-order model in the adsorption tests using 2 and 6 gL-1 of Al2O3 and assays using 2, 4 and 6 g.L-1 of Fe/Al2O3. A fact corroborated by the R2 values, thus indicating that the chemical interactions are present in the adsorption mechanisms of BTX. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Adsorção; Alumina; BTX; Tratamento de água

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Araújo, N. K. C. d. (2016). Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/21100

Chicago Manual of Style (16^th Edition):

Araújo, Nayonara Karolynne Costa de. “Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .” 2016. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/21100.

MLA Handbook (7^th Edition):

Araújo, Nayonara Karolynne Costa de. “Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina .” 2016. Web. 16 Oct 2019.

Vancouver:

Araújo NKCd. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2016. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/21100.

Council of Science Editors:

Araújo NKCd. Estudo da eficiência dos adsorventes de Al2O3 e Fe/Al2O3 para remoção de BTX presente em água contaminada com gasolina . [Masters Thesis]. Universidade do Rio Grande do Norte; 2016. Available from: http://repositorio.ufrn.br/handle/123456789/21100

Universidade do Rio Grande do Norte

14. Galvão, Álvaro Gustavo Paulo. Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons .

Degree: 2017, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/23875

► Sulfur is the third most abundant element in petroleum and is considered one of the main contaminants present in this matrix, and may occur in… (more)

▼ Sulfur is the third most abundant element in petroleum and is considered one of the main contaminants present in this matrix, and may occur in the forms of sulfides, thiophenes, polycyclic molecules containing oxygen and nitrogen etc. They can cause corrosion, poisoning of catalysts used in refining and in automobiles. In fuel combustion, when present, they give rise to SOX oxides, which contribute to the formation of acid rain, soil acidity and respiratory problems in the population. Therefore, the determination of sulfur is of primary interest for the petrochemical industry as well as for analytical chemistry. Considering this situation, it is proposed the development of a procedure for the preparation of petroleum samples for the determination of the sulfur content of sulfur (SO4 2-) by Ion Chromatography (IC). For this, the wet decomposition assisted by microwave radiation, assisted by the oxidative action of H2O2, was the adopted procedure, where the maximum temperature and power of 230 °C and 1000 W, respectively, were used in the program of heating. Six petroleum samples (°API between 18.75-5.17) were analyzed, with the mean concentrations of sulfur being between 377.50 and 3321.74 mg Kg-1, with a standard deviation between ± 1.02 and ± 9.56. For the purposes of the evaluation of the obtained results, the sulfur content in the samples under study was evaluated using the UVF technique, based on the official standard ASTM D 5453-12, where correlations between 85.43 and 106.43% were reached, evidencing the efficiency of the method proposed in the conversion of the sulfur species contained in the samples to sulfate and its determination by IC. The efficiency of the adopted decomposition procedure was tested using RCC% and EDMO%, with levels between 6.72 and 15.73% and 85.85 and 94.14% being respectively achieved, demonstrating the efficiency of the decomposition procedure used. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Petróleo; Enxofre; Cromatografia de íons

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Galvão, �. G. P. (2017). Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/23875

Chicago Manual of Style (16^th Edition):

Galvão, Álvaro Gustavo Paulo. “Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons .” 2017. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/23875.

MLA Handbook (7^th Edition):

Galvão, Álvaro Gustavo Paulo. “Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons .” 2017. Web. 16 Oct 2019.

Vancouver:

Galvão �GP. Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2017. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/23875.

Council of Science Editors:

Galvão �GP. Otimização de metodologia para determinação de enxofre na forma de sulfato em petróleo pesado por cromatografia de íons . [Masters Thesis]. Universidade do Rio Grande do Norte; 2017. Available from: http://repositorio.ufrn.br/handle/123456789/23875

Universidade do Rio Grande do Norte

15. Lima, Maria Santana Bezerra de. Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it .

Degree: 2010, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/17630

► The problems of water supply in Northeast Brazil are severe and require more focused studies. This work was intended to assess water quality in the… (more)

Subjects/Keywords: Bacia hidrográfica pirangi; Água; Índice de qualidade da água-IQA; Índice de toxidez-IT; Watershed pirangi; Water; Quality water-IQA; Index of toxicity-IT

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lima, M. S. B. d. (2010). Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/17630

Chicago Manual of Style (16^th Edition):

Lima, Maria Santana Bezerra de. “Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it .” 2010. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/17630.

MLA Handbook (7^th Edition):

Lima, Maria Santana Bezerra de. “Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it .” 2010. Web. 16 Oct 2019.

Vancouver:

Lima MSBd. Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2010. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/17630.

Council of Science Editors:

Lima MSBd. Monitoramento das águas da bacia hidrográfica pirangi pela determinação dos índices de qualidade da água-iqa e índice de toxidez-it . [Masters Thesis]. Universidade do Rio Grande do Norte; 2010. Available from: http://repositorio.ufrn.br/handle/123456789/17630

Universidade do Rio Grande do Norte

16. Lima, Gilberto de. Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio .

Degree: 2016, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/21476

► Self-sustainable polymeric films based on new solid polymer electrolyte, having the poly(ethylene oxide) (PEO) as host matrix and sodium tungstate as doping agent (Na2WO4), were… (more)

▼ Self-sustainable polymeric films based on new solid polymer electrolyte, having the poly(ethylene oxide) (PEO) as host matrix and sodium tungstate as doping agent (Na2WO4), were obtained from different salt compositions (m = 0.20; 0.26; 0.30; 0.40; 0.50 and 1.31 mg). The films were characterized through XRD, FTIR, SEM/EDS, TG/DTG, DSC and IS. X-ray diffraction showed the semi crystalline nature of the polymer and confirmed that the addition of salt induces reduction in the crystalinity of the films. FTIR data allowed the identification of the interaction between salt ions and polymer chains and confirmed that these interactions are of a physical nature. The micrographs obtained through SEM showed spherulitic morphology interleaved by interlayered bonds for all of the compositions studied. The TG/DTG study revealed that the thermal decomposition of the electrolyte almost happens at a single stage with the addition of salt, increasing the thermal stability of the films. TG/DTG data also allowed the kinetic study of the thermal decomposition of the electrolyte through Broido (BR), Coats-Redfern (CR) and Horowitz-Metzger (HM) methods, suggesting a first-order kinetic for the reaction of the thermal decomposition of the films, as well as the setting of pre-exponential factor, A, and the thermodynamic activation parameters: E*, ΔH*, ΔS* and ΔG*. The crystallinity degree was determined through DSC data and showed a reduction after the addition of salt to the polymer. The polymer has its conductivity increased after addition of the salt with the PEO-Na2WO4 electrolyte exhibiting maximum of ionic conductivity of 3.24x10-4 S cm-1, to room temperature, for the film with 1.31 mg of salt (F6 film). The impedance data allowed the study on relaxation on PEO chains, even as the diffusion of salt between these chains. The impedance diagrams, on Bode and Nyquist formats, enabled the adjustment of the experimental data to equivalent electric circuits, which facilitated the association of the circuit components to the physical and chemical phenomena observed for the films and revealed that, after the addition of salt to the polymer, the films have their electrical properties enhanced. Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), 13893734449 (advisor), Cavalcante, Maria Gorette (advisor), 10843329491 (advisor).

Subjects/Keywords: Poli(óxido de etileno) (POE); Tungstato de Sódio (Na2WO4); Eletrólito Polimérico Sólido (EPS); Estudo termocinético; Condutividade iônica

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lima, G. d. (2016). Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio . (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/21476

Chicago Manual of Style (16^th Edition):

Lima, Gilberto de. “Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio .” 2016. Masters Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/21476.

MLA Handbook (7^th Edition):

Lima, Gilberto de. “Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio .” 2016. Web. 16 Oct 2019.

Vancouver:

Lima Gd. Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio . [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2016. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/21476.

Council of Science Editors:

Lima Gd. Estudo de um novo eletrólito polimérico sólido em forma de filme autossustentável: Poli(óxido de etileno)-tungstato de sódio . [Masters Thesis]. Universidade do Rio Grande do Norte; 2016. Available from: http://repositorio.ufrn.br/handle/123456789/21476

Universidade do Rio Grande do Norte

17. Chiquetti, Samanta Cristina. Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) .

Degree: 2013, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/17777

► Soil contamination by pesticides is an environmental problem that needs to be monitored and avoided. However, the lack of fast, accurate and low cost analytical… (more)

▼ Soil contamination by pesticides is an environmental problem that needs to be monitored and avoided. However, the lack of fast, accurate and low cost analytical methods for discovering residual pesticide in complex matrices, such as soil, is a problem still unresolved. This problem needs to be solved before we are able to assess the quality of environmental samples. The intensive use of pesticides has increased since the 60s, because the dependence of their use, causing biological imbalances and promoting resistance and recurrence of high populations of pests and pathogens (upwelling). This has contributed to the appearance of new pests that were previously under natural control. To develop analytical methods that are able to quantify residues pesticide in complex environment. It is still a challenge for many laboratories. The integration of two analytical methods one ecotoxicological and another chemical demonstrates the potential for environmental analysis of methamidophos. The aim of this study was to evaluate an ecotoxicological method as "screening" analytical methamidophos in the soil and perform analytical confirmation in the samples of the concentration of the analyte by chemical method LC-MS/MS In this work we tested two soils: a clayey and sandy, both in contact with the kinetic methamidophos model followed pseudo-second order. The clay soil showed higher absorption of methamidophos and followed the Freundlich model, while the sandy, the Langmuir model. The chemical method was validated LC-MS/MS satisfactory, showing all parameters of linearity, range, precision, accuracy, and sensitivity adequate. In chronic ecotoxicological tests with C. dubia, the NOEC was 4.93 and 3.24 for ng L-1 of methamidophos to elutriate assays of sandy and clay soils, respectively. The method for ecotoxicological levels was more sensitive than LC-MS/MS detection of methamidophos, loamy and sandy soils. However, decreasing the concentration of the standard for analytical methamidophos and adjusting for the validation conditions chemical acquires a limit of quantification (LOQ) in ng L-1, consistent with the provisions of ecotoxicological test. The methods described should be used as an analytical tool for methamidophos in soil, and the ecotoxicological analysis can be used as a "screening" and LC-MS/MS as confirmatory analysis of the analyte molecule, confirming the objectives of this work Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), CPF:13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Metamidofós. Adsorção. Solo. Ceriodaphnia dubia. LC-MS/MS; Methamidophos. Adsorption. Soil. Ceriodaphnia dubia. LC-MS/MS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chiquetti, S. C. (2013). Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) . (Doctoral Dissertation). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/17777

Chicago Manual of Style (16^th Edition):

Chiquetti, Samanta Cristina. “Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) .” 2013. Doctoral Dissertation, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/17777.

MLA Handbook (7^th Edition):

Chiquetti, Samanta Cristina. “Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) .” 2013. Web. 16 Oct 2019.

Vancouver:

Chiquetti SC. Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) . [Internet] [Doctoral dissertation]. Universidade do Rio Grande do Norte; 2013. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/17777.

Council of Science Editors:

Chiquetti SC. Detecção de metamidofós em solos por métodos ecotoxicológico e cromatografia líquida acoplada à espectrometria de massas sequencial (LC-MS/MS) . [Doctoral Dissertation]. Universidade do Rio Grande do Norte; 2013. Available from: http://repositorio.ufrn.br/handle/123456789/17777

Universidade do Rio Grande do Norte

18. Nascimento, Luciana Araújo. Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN .

Degree: 2008, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12885

► It is located in an area of increasing oil exploration, the region of the Lower Açu is at the mercy of a possible pollution generated… (more)

Subjects/Keywords: Metais-traço; Sedimento; Rio Piranhas-Açu; Contaminação; Atividade petrolífera; Trace metals; Sediment; River Piranhas-Açu; Contamination; Oil activity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nascimento, L. A. (2008). Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12885

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nascimento, Luciana Araújo. “Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN .” 2008. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12885.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nascimento, Luciana Araújo. “Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN .” 2008. Web. 16 Oct 2019.

Vancouver:

Nascimento LA. Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2008. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12885.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nascimento LA. Diagnóstico da possível influência da atividade petrolífera em sedimentos de fundo da Bacia Piranhas-Açu, região Baixo Açu/RN . [Thesis]. Universidade do Rio Grande do Norte; 2008. Available from: http://repositorio.ufrn.br/handle/123456789/12885

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

19. Ramalho, Adriana Margarida Zanbotto. Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida .

Degree: 2008, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12886

► The production of water has become one of the most important wastes in the petroleum industry, specifically in the up stream segment. The treatment of… (more)

▼ The production of water has become one of the most important wastes in the petroleum industry, specifically in the up stream segment. The treatment of this kind of effluents is complex and normally requires high costs. In this context, the electrochemical treatment emerges as an alternative methodology for treating the wastewaters. It employs electrochemical reactions to increase the capability and efficiency of the traditional chemical treatments for associated produced water. The use of electrochemical reactors can be effective with small changes in traditional treatments, generally not representing a significant additional surface area for new equipments (due to the high cost of square meter on offshore platforms) and also it can use almost the same equipments, in continuous or batch flow, without others high costs investments. Electrochemical treatment causes low environmental impact, because the process uses electrons as reagent and generates small amount of wastes. In this work, it was studied two types of electrochemical reactors: eletroflocculation and eletroflotation, with the aim of removing of Cu2+, Zn2+, phenol and BTEX mixture of produced water. In eletroflocculation, an electrical potential was applied to an aqueous solution containing NaCl. For this, it was used iron electrodes, which promote the dissolution of metal ions, generating Fe2+ and gases which, in appropriate pH, promote also clotting-flocculation reactions, removing Cu2+ and Zn2+. In eletroflotation, a carbon steel cathode and a DSA type anode (Ti/TiO2-RuO2-SnO2) were used in a NaCl solution. It was applied an electrical current, producing strong oxidant agents as Cl2 and HOCl, increasing the degradation rate of BTEX and phenol. Under different flow rates, the Zn2+ was removed by electrodeposition or by ZnOH formation, due the increasing of pH during the reaction. To better understand the electrochemical process, a statistical protocol factor (22) with central point was conducted to analyze the sensitivity of operating parameters on removing Zn2+ by eletroflotation, confirming that the current density affected the process negatively and the flow rate positively. For economical viability of these two electrochemical treatments, the energy consumption was calculated, taking in account the kWh given by ANEEL. The treatment cost obtained were quite attractive in comparison with the current treatments used in Rio Grande do Norte state. In addition, it could still be reduced for the case of using other alternative energy source such as solar, wind or gas generated directly from the Petrochemical Plant or offshore platforms Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), CPF:13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Tratamento eletroquímico; Água produzida; BTEX; Fenol; Cu2+; Zn2+; Electrochemical treatment; Produced water; BTEX; Phenol; Cu2+; Zn2+

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ramalho, A. M. Z. (2008). Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12886

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ramalho, Adriana Margarida Zanbotto. “Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida .” 2008. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12886.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ramalho, Adriana Margarida Zanbotto. “Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida .” 2008. Web. 16 Oct 2019.

Vancouver:

Ramalho AMZ. Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2008. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12886.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ramalho AMZ. Estudo de reatores eletroquímicos para remoção de Cu2+ , Zn2+, Fenol e BTEX em água produzida . [Thesis]. Universidade do Rio Grande do Norte; 2008. Available from: http://repositorio.ufrn.br/handle/123456789/12886

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

20. Viana, Marcelino Gevilbergue. Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico .

Degree: 2009, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12903

► The biofilms microbial forms of association are responsible for generating, accelerating and / or induce the process of corrosion. The damage generated in the petroleum… (more)

Subjects/Keywords: Biofilme; Biocorrosão; Lippia gracilis Schauer; Biocida e corrosão; Biofilm; Biocorrosion; Lippia gracilis Schauer; Biocid and corrosion

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Viana, M. G. (2009). Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12903

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Viana, Marcelino Gevilbergue. “Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico .” 2009. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12903.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Viana, Marcelino Gevilbergue. “Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico .” 2009. Web. 16 Oct 2019.

Vancouver:

Viana MG. Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2009. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12903.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Viana MG. Avaliação de produtos naturais no controle de biofilmes formados em sistema dinâmico . [Thesis]. Universidade do Rio Grande do Norte; 2009. Available from: http://repositorio.ufrn.br/handle/123456789/12903

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

21. Fontes, Vilsinéia dos Anjos. Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo .

Degree: 2010, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12927

► The acceleration of industrial growth in recent decades on all continents aroused the interest of the companies to counter the impacts produced on the environment,… (more)

▼ The acceleration of industrial growth in recent decades on all continents aroused the interest of the companies to counter the impacts produced on the environment, spurred primarily by major disasters in the petroleum industry. In this context, the water produced is responsible for the largest volume of effluent from the production and extraction of oil and natural gas. This effluent has in its composition some critical components such as inorganic salts, heavy metals (Fe, Cu, Zn, Pb, Cd, ), presence of oil and chemicals added in the various production processes. In response to impact, have been triggered by research alternative adsorbent materials for water treatment and water produced, in order to removing oils and acids and heavy metals. Many surveys of diatomaceous earth (diatomite) in Brazil involve studies on the physico-chemical, mineral deposits, extraction, processing and applications. The official estimated Jazi are around 2.5 million tonnes, the main located in the states of Bahia (44%) and Rio Grande do Norte (37,4%). Moreover, these two states appear as large offshore producers, earning a prominent role in research of adsorbents such as diatomite for treatment of water produced. Its main applications are as an agent of filtration, adsorption of oils and greases, industrial load and thermal insulator. The objective of this work was the processing and characterization of diatomite diatomaceous earth obtained from the municipality of Macaíba-RN (known locally as tabatinga) as a low cost regenerative adsorbent for removal of heavy metals in the application of water produced treatment. In this work we adopted a methodology for batch processing, practiced by small businesses located in producing regions of Brazil. The characterization was made by X-ray diffraction (XRD), scanning electron microscopy (SEM) and specific surface area (BET). Research conducted showed that the improvement process used was effective for small volume production of diatomite concentrated. The diatomite obtained was treated by calcination at temperature of 900 °C for 2 hours, with and without fluxing Na2CO3 (4%), according to optimal results in the literature. Column adsorption experiments were conducted to percolation of the in nature, calcined and calcined fluxing diatomites. Effluent was used as a saline solution containing ions of Cu, Zn, Na, Ca and Mg simulating the composition of produced waters in the state of Rio Grande do Norte, Brazil. The breakthrough curves for simultaneous removal of copper ions and zinc as a result, 84.3% for calcined diatomite and diatomite with 97.3 % for fluxing. The calcined fluxing diatomite was more efficient permeability through the bed and removal of copper and zinc ions. The fresh diatomite had trouble with the permeability through the bed under the conditions tested, compared with the other obtained diatomite. The results are presented as promising for application in the petroleum industry Advisors/Committee Members: Silva, Djalma Ribeiro da (advisor), CPF:13893734449 (advisor), http://lattes.cnpq.br/2791074318745945 (advisor).

Subjects/Keywords: Diatomita; Água produzida; Metais pesados; Adsorção; Poluentes industriais; Diatomite; Produced water; Havy metals; Adsorption; Industrial pollutants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fontes, V. d. A. (2010). Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12927

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fontes, Vilsinéia dos Anjos. “Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo .” 2010. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12927.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fontes, Vilsinéia dos Anjos. “Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo .” 2010. Web. 16 Oct 2019.

Vancouver:

Fontes VdA. Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2010. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12927.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fontes VdA. Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo . [Thesis]. Universidade do Rio Grande do Norte; 2010. Available from: http://repositorio.ufrn.br/handle/123456789/12927

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

22. Lima, Daniel de Andrade. Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld .

Degree: 2009, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12931

► The scale is defined as chemical compounds from inorganic nature, initially soluble in salt solutions, which may precipitate accumulate in columns of production and surface… (more)

Subjects/Keywords: Incrustação; Difração de raios X; Método Rietveld; Scale; X-ray diffraction; Rietveld Method

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lima, D. d. A. (2009). Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12931

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lima, Daniel de Andrade. “Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld .” 2009. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12931.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lima, Daniel de Andrade. “Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld .” 2009. Web. 16 Oct 2019.

Vancouver:

Lima DdA. Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2009. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12931.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lima DdA. Quantificação de Fases Cristalinas de Incrustações em Colunas de Produção de Petróleo pelo Método Rietveld . [Thesis]. Universidade do Rio Grande do Norte; 2009. Available from: http://repositorio.ufrn.br/handle/123456789/12931

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

23. Senna, Brenny Dantas de. Estudo da viabilidade econômica em campos maduros .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12945

► When it comes to oil and gas in Brazil is almost certain that we are referring to activities in deep waters off the coast of… (more)

Subjects/Keywords: Viabilidade econômica; Campos maduros; Petróleo.; Economic viability; Mature fields; Oil

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APA (6^th Edition):

Senna, B. D. d. (2011). Estudo da viabilidade econômica em campos maduros . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12945

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Senna, Brenny Dantas de. “Estudo da viabilidade econômica em campos maduros .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12945.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Senna, Brenny Dantas de. “Estudo da viabilidade econômica em campos maduros .” 2011. Web. 16 Oct 2019.

Vancouver:

Senna BDd. Estudo da viabilidade econômica em campos maduros . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12945.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Senna BDd. Estudo da viabilidade econômica em campos maduros . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12945

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

24. Sena, Shirley Feitosa Machado. Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12950

► Waste generated during the exploration and production of oil, water stands out due to various factors including the volume generated, the salt content, the presence… (more)

Subjects/Keywords: Água produzida; Hidroquímica; Análise discriminante; Bacia potiguar; Zonas-Reservatório; Produced Water; Hydrochemistry; Discriminant Analysis; Potiguar Basin; Reservoir zones

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sena, S. F. M. (2011). Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12950

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sena, Shirley Feitosa Machado. “Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12950.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sena, Shirley Feitosa Machado. “Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar .” 2011. Web. 16 Oct 2019.

Vancouver:

Sena SFM. Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12950.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sena SFM. Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12950

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

25. Silva, Allison Alexandre Ribeiro da. Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12951

► With the increasing of demand for natural gas and the consequent growth of the pipeline networks, besides the importance of transport and transfer of oil… (more)

Subjects/Keywords: Corrosão; Monitoramento; Dutos; Perda de massa; Resistência elétrica; Corrosion; Monitoring; Pipelines; Metal loss; Electrical resistence

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Silva, A. A. R. d. (2011). Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12951

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Silva, Allison Alexandre Ribeiro da. “Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12951.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Silva, Allison Alexandre Ribeiro da. “Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica .” 2011. Web. 16 Oct 2019.

Vancouver:

Silva AARd. Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12951.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Silva AARd. Avaliação da corrosão em dutos por técnica gravimétrica e de resistência elétrica . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12951

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

26. Borba, Loiva Liana Santos. Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera .

Degree: 2010, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12957

► Currently, the oil industry is the biggest cause of environmental pollution. The objective was to reduce the concentration of copper and chromium in the water… (more)

Subjects/Keywords: Adsorção; Cromo; Cobre; Sisal; Fibra vegetal; Agave.; Adsorption; Chromium; Copper; Sisal; Vegetable fiber; Agave.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Borba, L. L. S. (2010). Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12957

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Borba, Loiva Liana Santos. “Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera .” 2010. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12957.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Borba, Loiva Liana Santos. “Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera .” 2010. Web. 16 Oct 2019.

Vancouver:

Borba LLS. Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2010. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12957.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Borba LLS. Adsorção de cobre e cromo utilizando fibra de sisal visando o tratamento da água produzida pela indústria petrolífera . [Thesis]. Universidade do Rio Grande do Norte; 2010. Available from: http://repositorio.ufrn.br/handle/123456789/12957

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

27. Lopes, Verushka Symonne de Medeiros. Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12958

► Among the different types of pollutants typically attributed to human activities, the petroleum products are one of the most important because of its toxic potential.… (more)

Subjects/Keywords: Água subterrânea; BTEX; Gasolina; Groundwater; BTEX; Gasoline

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lopes, V. S. d. M. (2011). Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12958

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lopes, Verushka Symonne de Medeiros. “Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12958.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lopes, Verushka Symonne de Medeiros. “Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN .” 2011. Web. 16 Oct 2019.

Vancouver:

Lopes VSdM. Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12958.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lopes VSdM. Avaliação preliminar da contaminação por BTEX, em água subterrânea de poços tubulares, no município de Natal-RN . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12958

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

28. Aquino Sobrinho, Hercules Lisboa de. Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12962

► Among the potentially polluting economic activities that compromise the quality of groundwater are the gas stations. The city of Natal has about 120 gas stations,… (more)

Subjects/Keywords: Postos de combustíveis; Software CAD; Pluma de contaminação; Compostos orgânicos voláteis; Design gráfico tridimensional; Fuel stations; CAD software; Plume contamination; Volatile organic compounds; Three dimensional graphic design

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aquino Sobrinho, H. L. d. (2011). Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12962

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Aquino Sobrinho, Hercules Lisboa de. “Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12962.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Aquino Sobrinho, Hercules Lisboa de. “Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN .” 2011. Web. 16 Oct 2019.

Vancouver:

Aquino Sobrinho HLd. Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12962.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Aquino Sobrinho HLd. Design gráfico da pluma de contaminação por compostos orgânicos voláteiss utilizando software CAD na investigação de passivo ambiental em um posto revendedor de combustíveis em Natal/RN . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12962

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

29. Mendes, Débora Cosme Pereira. Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo .

Degree: 2012, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12972

► Produced water is characterized as one of the most common wastes generated during exploration and production of oil. This work aims to develop methodologies based… (more)

Subjects/Keywords: Análise de componentes principais; Análise de perfis; Análise discriminante; Campos maduros; Hidroquímica; Petróleo; Zonas de produção.; Principal components analysis; Profile analysis; Discriminant analysis; Mature fields; Hydrochemistry; Oil; Production zones.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mendes, D. C. P. (2012). Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mendes, Débora Cosme Pereira. “Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo .” 2012. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mendes, Débora Cosme Pereira. “Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo .” 2012. Web. 16 Oct 2019.

Vancouver:

Mendes DCP. Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2012. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mendes DCP. Metodologias estatísticas aplicadas a dados de análises químicas da água produzida em um campo maduro de petróleo . [Thesis]. Universidade do Rio Grande do Norte; 2012. Available from: http://repositorio.ufrn.br/handle/123456789/12972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Norte

30. Coelho, Eduardo Philipp Medeiros. Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis .

Degree: 2011, Universidade do Rio Grande do Norte

URL: http://repositorio.ufrn.br/handle/123456789/12976

► Today a major responsibility for the contamination of soil and groundwater and surface water are establishments known as gas stations of fuel which has attracted… (more)

Subjects/Keywords: Elementos tóxicos. Carbono orgânico total. Solo. Postos de revenda de combustíveis; Toxic elements. Total organic carbon. Soil. Retail fuel stations

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Coelho, E. P. M. (2011). Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis . (Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/12976

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Coelho, Eduardo Philipp Medeiros. “Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis .” 2011. Thesis, Universidade do Rio Grande do Norte. Accessed October 16, 2019. http://repositorio.ufrn.br/handle/123456789/12976.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Coelho, Eduardo Philipp Medeiros. “Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis .” 2011. Web. 16 Oct 2019.

Vancouver:

Coelho EPM. Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis . [Internet] [Thesis]. Universidade do Rio Grande do Norte; 2011. [cited 2019 Oct 16]. Available from: http://repositorio.ufrn.br/handle/123456789/12976.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Coelho EPM. Avaliação da correlação entre os parâmetros, carbono orgânico total e elementos tóxicos, em solo de um posto de serviço e revenda de combustíveis . [Thesis]. Universidade do Rio Grande do Norte; 2011. Available from: http://repositorio.ufrn.br/handle/123456789/12976

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations