Comparison of Arsenic Removal from Contaminated Groundwater by Coagulation-sand Filtration and Locculation/Microfiltration Reactor

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Title:	Comparison of Arsenic Removal from Contaminated Groundwater by Coagulation-sand Filtration and Locculation/Microfiltration Reactor
Authors:	Wang, J. T. Chi-Chuan Kan(甘其銓) Lu, S. Y. Yang, H. L.
Contributors:	Natl Sun Yat Sen Univ, Dept Marine Environm & Engn Chia Nan Univ Pharm & Sci, Inst Hot Spring Ind Feng Chia Univ, Dept Environm Engn & Sci
Keywords:	arsenic groundwater microfiltration membrane sand filtration
Date:	2019
Issue Date:	2020-07-29 13:47:54 (UTC+8)
Publisher:	SCIBULCOM LTD
Abstract:	Experiments were carried out to evaluate the efficiency of arsenic removal from contaminated groundwater using coagulation-sand filtration and coagulation-microfiltration system. A residual turbidity of below 0.5 NTU (Nephelometric turbidity units) was achieved for both coagulation-sand filtration and coagulation-microfiltration system. This study also investigated arsenic removal from groundwater using a flocculation/membrane reactor. In the absence of oxidation, a maximum arsenic removal rate of 91% was obtained. With oxidation, the removal rate was observed to increase up to 96% with residual arsenic concentration of less than 0.01 mg/l. Results show that flocculation/membrane reactor could be utilised as an effective method in arsenic removal from groundwater in future field applications.
Relation:	Journal of Environmental Protection and Ecology, v.20, n.3, pp.1110-1119
Appears in Collections:	[Dept. of Tourism Management] Periodical Articles

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