Bacteria transport and retention in intact calcareous soil columns under saturated flow conditions

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Title:Bacteria transport and retention in intact calcareous soil columns under saturated flow conditions
Creators:
Firouzi, Ahmad Farrokhian; Department of Soil Science, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14155-336, Iran.
Homaee, Mehdi; mhomaee at modares dot ac dot ir; Department of Soil Science, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14155-336, Iran.
Klumpp, Erwin; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Kasteel, Roy; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Tappe, Wolfgang; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 63, 2, pp. 102-109
Uncontrolled Keywords:bacteria transport, calcareous soil, pseudomonas fluorescens, saturated flow

Abstract

Study of bacterial transport and retention in soil is important for various environmental applications such as groundwater contamination and bioremediation of soil and water. The main objective of this research was to quantitatively assess bacterial transport and deposition under saturated conditions in calcareous soil. A series of leaching experiments was conducted on two undisturbed soil columns. Breakthrough curves of Pseudomonas fluorescens and Cl were measured. After the leaching experiment, spatial distribution of bacteria retention in the soil columns was determined. The HYDRUS-1D one- and two-site kinetic models were used to predict the transport and deposition of bacteria in soil. The results indicated that the two-site model fits the observed data better than one-site kinetic model. Bacteria interaction with the soil of kinetic site 1 revealed relatively fast attachment and slow detachment, whereas attachment to and detachment of bacteria from kinetic site 2 was fast. Fast attachment and slow detachment of site 1 can be attributed to soil calcium carbonate that has favorable attachment sites for bacteria. The detachment rate was less than 0.02 of the attachment rate, indicating irreversible attachment of bacteria. High reduction rate of bacteria was also attributed to soil calcium carbonate.

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Title:Bacteria transport and retention in intact calcareous soil columns under saturated flow conditions
Translated title:Bacteria transport and retention in intact calcareous soil columns under saturated flow conditions
Creators:
Firouzi, Ahmad Farrokhian; Department of Soil Science, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14155-336, Iran.
Homaee, Mehdi; mhomaee at modares dot ac dot ir; Department of Soil Science, Tarbiat Modares University, Jalal Ale Ahmad Highway, Tehran 14155-336, Iran.
Klumpp, Erwin; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Kasteel, Roy; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Tappe, Wolfgang; Agrosphere Institute, IBG-3, Forschungszentrum Jülich GmbH, Wilhelm-Johnen Str., 52428 Jülich, Germany.
Uncontrolled Keywords:bacteria transport, calcareous soil, pseudomonas fluorescens, saturated flow
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:63
Number:2
Page Range:pp. 102-109
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8389
Item Type:Article
Deposited On:07 Apr 2015 13:04
Last Modified:07 Apr 2015 11:04

Citation

Firouzi, Ahmad Farrokhian; Homaee, Mehdi; Klumpp, Erwin; Kasteel, Roy; Tappe, Wolfgang (2015) Bacteria transport and retention in intact calcareous soil columns under saturated flow conditions. Journal of Hydrology and Hydromechanics, 63 (2). pp. 102-109. ISSN 0042-790X

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