Role of an organic carbon-rich soil and Fe(III) reduction in reducing the toxicity and environmental mobility of chromium(VI) at a COPR disposal site
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- 作者：Weixuan Dinga ; Douglas I. Stewartb ; D.I.Stewart@leeds.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Paul N. Humphreysc ; Simon P. Routc ; Ian T. Burkea ; I.T.Burke@leeds.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：COPR ; Alkaline ; Chromium ; Iron ; Bioremediation
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：541
- 期：Complete
- 页码：1191-1199
- 全文大小：1367 K
文摘
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A Fe(II)-containing organic rich soil is found beneath a COPR waste tip.
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Cr(VI) is removed from COPR leachate by reaction with Fe(II), producing Cr(OH)3.
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The soil contains alkaliphilic fermentative and Fe(III)-reducing bacteria.
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The bacterial community maintains a redox barrier reducing the spread of Cr(VI).
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Organic matter addition to OM poor soils is a low cost, long-term treatment.