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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Main Authors: Sandip Patil, Kamal Tawfiq, Gang Chen
Format: Article
Language:English
Published: University of Paraiba 2012-12-01
Series:Journal of Urban and Environmental Engineering
Subjects:
Online Access:http://periodicos.ufpb.br/ojs2/index.php/juee/article/view/11886/8517
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spelling 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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