Insight into the influences of pH value on Pb(II) removal by the biopolymer extracted from activated sludge
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- 作者：Yun Zhoua ; b ; c ; Siqing Xiaa ; Jiao Zhangd ; Binh T. Nguyenc ; Zhiqiang Zhanga ; b ; zhiqiang@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Activated sludge ; Biopolymer ; Heavy metal ; Adsorption ; Functional groups ; Binding site number
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：308
- 期：Complete
- 页码：1098-1104
- 全文大小：697 K
文摘
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pH influences on Pb2+ removal by the biopolymer in activated sludge were disclosed.
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Total removal rate of Pb2+ increased with rising system pH value.
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Biosorption was predominant for Pb2+ removal under acid conditions.
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Biosorption and Pb(OH)2 precipitation co-existed under alkaline conditions.
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Pb(OH)2 excelled biosorption in capturing Pb2+ under alkaline conditions.
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