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	Treatment of high arsenic content wastewater by a combined physical-chemical process
	Wang, Hong-Jie; Gong, Wen-Xin; Liu, Rui-Ping; Liu, Hui-Juan; Qu, Jiu-Hui
	2011
会议名称	6th International Conference on Interfaces Against Pollution (IAP 2010)
会议日期	MAY 16-19, 2010
会议地点	Beijing, PEOPLES R CHINA
关键词	Arsenic Wastewater Pre-oxidation Co-precipitation Adsorption
英文摘要	The performance of a novel combined process, consisting of pre-oxidation, co-precipitation, adsorption and coagulation was investigated for treatment of high arsenic content industrial wastewater. KMnO4 was used to oxidize As(III) to As(V) firstly, meanwhile the total arsenic concentration reduced about 9%. Then lime and ferrous co-precipitation was performed and the arsenic concentration decreased dramatically from 423 mg/L to 6.8 mg/L. Subsequent ferric and manganese binary oxide (FMBO) adsorption and polyaluminum chloride (PACI) coagulation process as a final treatment removed over 99.88% of the residual arsenic. About 5000 m(3) of industrial wastewater, with average arsenic concentration of 465 mg/L, was safe treated and disposed by a combined pilot-scale system. The average effluent concentration of the system was 0.008 mg/L which meet the discharge limit of 0.05 mg/L, and the total removal efficiency was 99.998%. The pilot-scale results indicated that the combined process would be advantageous and practical in treating of high arsenic content wastewater, especially in treating emergency accident of arsenic pollution. (C) 2010 Elsevier B.V. All rights reserved.
ISBN号	0927-7757
WOS记录号	WOS:000289920200018
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24629]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Hong-Jie,Gong, Wen-Xin,Liu, Rui-Ping,et al. Treatment of high arsenic content wastewater by a combined physical-chemical process[C]. 见:6th International Conference on Interfaces Against Pollution (IAP 2010). Beijing, PEOPLES R CHINA. MAY 16-19, 2010.

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