Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(Dumping holes). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


Universidade Federal de Viçosa

1. Victor Almeida Pereira. Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing.

Degree: 2009, Universidade Federal de Viçosa

In the south of the Espírito Santo State, Brazil, the wastewater generated in the coffee grain processing (CGPW) is disposed by the farmers in dumping holes in the soil. This practice has the advantages of the requirement of small areas, the low costs, and the feasibility of construction, operation and management. However, it has to be appropriately executed in order to avoid the contamination of the underground water and the occurrence of changes in the soil chemical and physical characteristics. It was made the characterization of the disposed CGPW and determined the chemical and physical characteristics in soil samples collected near the dumping holes used for CGPW disposal in counties from the Espírito Santo State. The samples were collected at distances up to 5 in the lateral of the hole, at different depths and in the bottom of the dumping hole. The disposed CGPW presented salinity, acid pH, high concentration of total solids and high organic content, with the element N being the most concentrated. The exchangeable K increased in almost all soil samples collected in the lateral positions. This caused a higher electrical conductivity in the saturation extract, a higher percentage of dispersed clay in the soil, mainly in the samples closer to the dumping hole, a decrease in the potential acidity, and changes in the pH of some samples. The soil exchangeable Ca and Mg also increased in the samples closer to the dumping holes with increase of the sum of bases and index of base saturation. The available P decreased in the samples more distant from to the dumping holes. There was no detection of Na in the samples and no variation of exchangeable Al concentration, but the Al saturation index decreased closer to the dumping hole. The cation exchangeable capacity (CEC), at pH 7, decreased in most of the samples whereas the effective CEC increased in the samples closer to the dumping holes. The organic matter content and the remaining P increased in some samples located at 50 cm from the dumping holes. In the soil samples collected at the bottom of the holes, the pH, the Mg concentration, the sum of bases and índex of base saturation decreased whereas the electrical conductivity, clay disperse in water, organic matter content, moisture equivalent, potential acidity, Al saturation and CEC, at pH 7, increased. There was increase also in the available P, remaining P, and exchangeable Ca and Al. The exchangeable K and the effective CEC did not show variation in the samples collected in different depths at the bottom of the hole.

No sul do Estado do Espírito Santo, a técnica de disposição da água residuária do descascamento/despolpa dos frutos do cafeeiro (ARC) em valas de infiltração/percolação é muito utilizada por produtores, por necessitar de pequenas áreas para se efetuar a disposição da ARC, ser de baixo custo e fácil implantação, operação e manutenção. No entanto, se esta técnica for realizada de forma inadequada, poderá causar contaminação do lençol subterrâneo e alterações nas características químicas e físicas do…

Advisors/Committee Members: Antonio Teixeira de Matos, Luiz Carlos Prezotti, Luiz Eduardo Dias, Victor Hugo Alvarez Venegas, Genelício Crusoé Rocha, Renildes Lúcio Ferreira Fontes.

Subjects/Keywords: Águas residuais; Valas; Infiltração; Percolação; CIENCIA DO SOLO; Wastewaters; Dumping holes; Infiltration; Percolation; Coffee processing

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Pereira, V. A. (2009). Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing. (Thesis). Universidade Federal de Viçosa. Retrieved from http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2043

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

Chicago Manual of Style (16th Edition):

Pereira, Victor Almeida. “Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing.” 2009. Thesis, Universidade Federal de Viçosa. Accessed July 23, 2019. http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2043.

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

MLA Handbook (7th Edition):

Pereira, Victor Almeida. “Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing.” 2009. Web. 23 Jul 2019.

Vancouver:

Pereira VA. Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing. [Internet] [Thesis]. Universidade Federal de Viçosa; 2009. [cited 2019 Jul 23]. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2043.

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

Council of Science Editors:

Pereira VA. Characteristics of the soil in area under influence of dumping holes used for infiltration/percolation of wastewater discharged from the coffee grain processing. [Thesis]. Universidade Federal de Viçosa; 2009. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=2043

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

.