Enhancing the sludge dewaterability by electrolysis/electrocoagulation combined with zero-valent iron activated persulfate process
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- 作者：Yifu Lia ; b ; Xingzhong Yuana ; b ; yxz@hnu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhibin Wua ; b ; Hou Wanga ; b ; Zhihua Xiaoa ; b ; Yan Wua ; b ; Xiaohong Chenc ; Guangming Zenga ; b
- 关键词：Wasted activated sludge (WAS) ; Dewaterability ; Electrocoagulation ; Persulfate ; Extracellular polymeric substance (EPS)
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：303
- 期：Complete
- 页码：636-645
- 全文大小：3000 K
文摘
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EL/EC and ZVI activated persulfate had synergetic effect on sludge dewatering.
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EZP conditioning effectively enhanced different types of sludge dewaterability.
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EZP oxidation destroyed the EPS and cells, releasing bound water in sludge flocs.
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Degradation of protein-like substances contributed to sludge dewatering.
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Cost of EZP conditioning saving up to 41.9% in comparison with Fenton method.