COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS
During animal waste agricultural applications, the major concern is the pathogen spreading, which may contaminate groundwater. Colloid release and pathogen transport during irrigation were evaluated in intact agricultural soil columns in this research using Escherichia coli as a model strain. In ord...
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doaj-9e1579d9d2d24230ada7f7f9af28e63b2020-11-25T02:27:13ZengUniversity of ParaibaJournal of Urban and Environmental Engineering1982-39322012-12-01627885COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNSSandip PatilKamal TawfiqGang ChenDuring animal waste agricultural applications, the major concern is the pathogen spreading, which may contaminate groundwater. Colloid release and pathogen transport during irrigation were evaluated in intact agricultural soil columns in this research using Escherichia coli as a model strain. In order to be easily identified and quantified, E. coli was incorporated with green fluorescent protein genes. The experiments were conducted at a water flow rate of 100 ml/min and the elution was collected and analized for colloid release and E. coli transport. Colloid release and E. coli transport were simulated using an implicit, finite-difference scheme with colloid release rate coefficient and E. coli deposition rate coefficient as constant, linear and exponential functions of the soil depth, respectively. It seemed that exponential functions had the best fit against the colloid release and E. coli transport observations.http://periodicos.ufpb.br/ojs2/index.php/juee/article/view/11886/8517Colloid releaseE. coliwater contentirrigation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sandip Patil Kamal Tawfiq Gang Chen |
spellingShingle |
Sandip Patil Kamal Tawfiq Gang Chen COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS Journal of Urban and Environmental Engineering Colloid release E. coli water content irrigation |
author_facet |
Sandip Patil Kamal Tawfiq Gang Chen |
author_sort |
Sandip Patil |
title |
COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS |
title_short |
COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS |
title_full |
COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS |
title_fullStr |
COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS |
title_full_unstemmed |
COLLOID RELEASE AND E. COLI TRANSPORT IN INTACT AGRICULTURAL SOIL COLUMNS |
title_sort |
colloid release and e. coli transport in intact agricultural soil columns |
publisher |
University of Paraiba |
series |
Journal of Urban and Environmental Engineering |
issn |
1982-3932 |
publishDate |
2012-12-01 |
description |
During animal waste agricultural applications, the major concern is the pathogen spreading, which may contaminate groundwater. Colloid release and pathogen transport during irrigation were evaluated in intact agricultural soil columns in this research using Escherichia coli as a model strain. In order to be easily identified and quantified, E. coli was incorporated with green fluorescent protein genes. The experiments were conducted at a water flow rate of 100 ml/min and the elution was collected and analized for colloid release and E. coli transport. Colloid release and E. coli transport were simulated using an implicit, finite-difference scheme with colloid release rate coefficient and E. coli deposition rate coefficient as constant, linear and exponential functions of the soil depth, respectively. It seemed that exponential functions had the best fit against the colloid release and E. coli transport observations. |
topic |
Colloid release E. coli water content irrigation |
url |
http://periodicos.ufpb.br/ojs2/index.php/juee/article/view/11886/8517 |
work_keys_str_mv |
AT sandippatil colloidreleaseandecolitransportinintactagriculturalsoilcolumns AT kamaltawfiq colloidreleaseandecolitransportinintactagriculturalsoilcolumns AT gangchen colloidreleaseandecolitransportinintactagriculturalsoilcolumns |
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