Bioremediation of Pb-contaminated soil based on microbially induced calcite precipitation

Varenyam Achal, Xiangliang Pan*, Daoyong Zhang, Qinglong Fu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)244-247
Number of pages4
JournalJournal of Microbiology and Biotechnology
Volume22
Issue number2
DOIs
StatePublished - Feb 2012
Externally publishedYes

Keywords

  • Bioremediation
  • Calcite
  • Dehydrogenase
  • Kocuria flava
  • Urease

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