Effect of nickel on the flocculability, settleability, and dewaterability of activated sludge

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• 作者：Qi Yang ; ^{yangqi@hnu.edu.cn} ; Jian Sun ; Dongbo Wang ; Shana Wang ; Fei Chen ; Fubing Yao ; Hongxue An ; Yu Zhong ; Ting Xie ; Yali Wang ; Xiaoming Li ; Guangming Zeng
• 关键词：Ni(II) ; Physicochemical property ; Extracellular polymeric substances ; Reducing Ni(II) toxicity
• 刊名：Bioresource Technology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：224
• 期：Complete
• 页码：188-196
• 全文大小：2237 K
• 卷排序：224

文摘

Long-term exposure to Ni(II) exhibited adverse effects on the sludge flocculability. The content of PN in EPS decreased after long-term exposure to Ni(II). EEM and FTIR showed the change of structures and functional groups in EPS. The hydrophobicity of sludge decreased with the increasing Ni(II) level. The deleterious effect of Ni(II) could be mitigated by adding the EDTA or citrate.