TY - JOUR
T1 - Ability of Shewanella oneidensis for the remediation of Heavy metals from urban road dusts
AU - Achal, Varenyam
AU - Zhang, Qiuzhuo
AU - Xiang, Wei Ning
AU - Wang, Duanchao
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Heavy metals present in urban road dusts are hazardous to human health as well as environment. Although there are many reports of such pollution, remediation process for urban road dusts has not been studied. In the present study, road dusts were collected from different parts of Shanghai, China and were analyzed for the presence of heavy metals. A novel concept of microbially induced calcite precipitation (MICP) was employed in the remediation process. Shewanella oneidensis VA6 a river isolate, with multiple metal resistant abilities, was identified based on 16S rDNA sequencing and used in this study. This bacterium remediated more than 90% of six different heavy metals (Zn, Cr, Pb, Cu, Cd, and Co) from urban road dusts. Further the efficiency of MICP was analyzed by X-Ray Diffraction (XRD), which plays a role for various biomineralization products such as calcite, aragonite, vaterite and gwihabaite in the process of remediation. This is the first extensive study where remediation of heavy metals from road dusts was studied.
AB - Heavy metals present in urban road dusts are hazardous to human health as well as environment. Although there are many reports of such pollution, remediation process for urban road dusts has not been studied. In the present study, road dusts were collected from different parts of Shanghai, China and were analyzed for the presence of heavy metals. A novel concept of microbially induced calcite precipitation (MICP) was employed in the remediation process. Shewanella oneidensis VA6 a river isolate, with multiple metal resistant abilities, was identified based on 16S rDNA sequencing and used in this study. This bacterium remediated more than 90% of six different heavy metals (Zn, Cr, Pb, Cu, Cd, and Co) from urban road dusts. Further the efficiency of MICP was analyzed by X-Ray Diffraction (XRD), which plays a role for various biomineralization products such as calcite, aragonite, vaterite and gwihabaite in the process of remediation. This is the first extensive study where remediation of heavy metals from road dusts was studied.
KW - Bioremediation
KW - Calcite
KW - Dusts
KW - Heavy metals
KW - Shewanella oneidensis
UR - http://www.scopus.com/inward/record.url?scp=84890066543&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:84890066543
VL - 22
SP - 3223
EP - 3228
JO - Fresenius Environmental Bulletin
JF - Fresenius Environmental Bulletin
SN - 1018-4619
IS - 11
ER -