Study on Insitu Bioremediation of Cr(VI) in Porous Media

Probe - Environmental Science and Technology

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Field Value
 
Title Study on Insitu Bioremediation of Cr(VI) in Porous Media
 
Creator Niu, Wenjing
Fang, Zhendong
Zhong, Hua
 
Subject Indigenous Microorganism; Cr(VI) Reduction; Column Experiment
 
Description Indigenous microorganism that show an ability for Cr (VI) reduction were isolated from a chromium-contaminated sediment. Sand column experiments were conducted using the isolated bacteria to investigate microorganism effects on Cr(VI) reduction in closed systems that simulated subsurface conditions. The results showed that when glucose and emulsified oil were used as carbon sources, the effective reduction of Cr(VI) can be achieved, and the reduction rate of Cr(VI) increases with the increase of carbon source. The reduction rate of Cr(VI) decreases with the increase of initial Cr(VI) concentration, which is consistent with the first-order reaction kinetics. The reaction rate constant decreases with the increase of initial Cr(VI) concentration. The reduction rate of Cr(VI) increased with the increase of the hydraulic residence time, that is, the emulsified oil has relatively high stability and low biodegradation rate, and can provide carbon source in the bioreduction process for a long time.
 
Publisher Universe Scientific Publishing Pte. Ltd.
 
Contributor
 
Date 2020-02-19
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://probe.usp-pl.com/index.php/PES/article/view/1308
10.18686/pes.v2i1.1308
 
Source Probe - Environmental Science and Technology; Vol 2, No 1 (2020); 9-15
2661-3948
 
Language eng
 
Relation http://probe.usp-pl.com/index.php/PES/article/view/1308/1157
 
Rights Copyright (c) 2020 Hua Zhong
http://creativecommons.org/licenses/by-nc/4.0
 

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