Bioremediation of Pb-Contaminated Soil Based on Microbially Induced Calcite Precipitation

Bioremediation of Pb-Contaminated Soil Based on Microbially Induced Calcite Precipitation

To remediate lead (Pb)-contaminated soils, it is proposed that microbially induced calcite precipitation (MICP) would provide the best alternative to other remediation technologies. In this study, Pb bioremediation in soils was investigated using the calcite-precipitating bacterium Kocuria flava. Re...

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Veröffentlicht in:Journal of microbiology and biotechnology 2012-02, Vol.22 (2), p.244-247
Hauptverfasser: Achal, Varenyam, Pan, Xiangliang, Zhang, Daoyong, Fu, Qinglong
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bioremediation
calcite
dehydrogenase
Kocuria flava
urease
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container_title Journal of microbiology and biotechnology
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creator Achal, Varenyam
Pan, Xiangliang
Zhang, Daoyong
Fu, Qinglong
description To remediate lead (Pb)-contaminated soils, it is proposed that microbially induced calcite precipitation (MICP) would provide the best alternative to other remediation technologies. In this study, Pb bioremediation in soils was investigated using the calcite-precipitating bacterium Kocuria flava. Results indicate that the Pb is primarily associated with the carbonate fraction in bioremediated soil samples. The bioavailability of Pb in contaminated soil was reduced so that the potential stress of Pb was alleviated. This research provides insight into the geochemistry occurring in the MICP-based Pb-remediated soils, which will help in remediation decisions.
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subjects bioremediation
calcite
dehydrogenase
Kocuria flava
urease
title Bioremediation of Pb-Contaminated Soil Based on Microbially Induced Calcite Precipitation
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