Enhancing the Performance of the Electrocoagulation-Filtration System Treating Mariculture Tailwaters by Using Alternating Pulse Current: Effects of Current Density and Current Conversion Period

doi:10.3390/w14081181

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	Enhancing the Performance of the Electrocoagulation-Filtration System Treating Mariculture Tailwaters by Using Alternating Pulse Current: Effects of Current Density and Current Conversion Period
	Xu, Jianping 1,3; Qiu, Tianlong 1,3; Chen, Fudi 1,3; Sun, Ming 1,2,3; Zhou, Li 1,3; Sun, Jianming 1,3; Du, Yishuai 1,3
刊名	WATER
	2022-04-01
卷号	14 期号:8 页码:16
关键词	electrocoagulation filtration alternating pulse current electrode passivation water treatment
DOI	10.3390/w14081181
通讯作者	Sun, Jianming(sjmqd@qdio.ac.cn) ; Du, Yishuai(duyishuai@qdio.ac.cn)
英文摘要	Electrocoagulation (EC) is an environmentally friendly and effective water treatment technique. It has been recently applied in combination with a filtration process. This study investigated the effects of an alternating pulse current (APC) on the electrodes, treatment efficiency, and energy consumption of an EC-filtration system during the treatment of mariculture tailwaters, from the aspects of current density and current conversion period (CCP), to generate ideas for improving the performance of the system. Results showed that using direct current (DC) would aggravate the electrode passivation, resulting in many white insoluble substances covering the surface of the electrodes. Moreover, the electrode passivation was more intense at a higher current density and longer system operation time (SOT). Significantly, the electrode weight increased by 1546.67 +/- 54.50 mg when the system was operated for 90 min under DC at a current density of 45 A/m(2). Unlike DC, APC significantly alleviated electrode passivation, enhanced the treatment efficiency, and reduced energy consumption. A shorter CCP produced better results. When the CCP was 1 min, current density was 45 A/m(2), and SOT was 10 min, the removal efficiency of the EC-filtration system for total suspended solids (TSS), chemical oxygen demand (CODMn), and total nitrogen (TN) was 53.55 +/- 1.66%, 47.76 +/- 0.18%, and 15.55 +/- 0.31%, respectively, and the energy consumption was 11.88 x 10(-3) kWh/m(3).
资助项目	National Key R and D Program of China[2019YFD0900502] ; Science and Technology Major Project of Guangxi[AA17204094-3] ; Key Research and Development Program of Shandong Province[2019GHY112004] ; China Postdoctoral Science Foundation[2019YFD0900502] ; China Postdoctoral Science Foundation[2021M693212]
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000785500300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/178825]
专题	海洋研究所_实验海洋生物学重点实验室
通讯作者	Sun, Jianming; Du, Yishuai
作者单位	1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 2.Liaoning Ocean & Fisheries Sci Res Inst, Dalian Key Lab Conservat Fishery Resources, Liaoning Prov Key Lab Marine Biol Resources & Eco, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jianping,Qiu, Tianlong,Chen, Fudi,et al. Enhancing the Performance of the Electrocoagulation-Filtration System Treating Mariculture Tailwaters by Using Alternating Pulse Current: Effects of Current Density and Current Conversion Period[J]. WATER,2022,14(8):16.
APA	Xu, Jianping.,Qiu, Tianlong.,Chen, Fudi.,Sun, Ming.,Zhou, Li.,...&Du, Yishuai.(2022).Enhancing the Performance of the Electrocoagulation-Filtration System Treating Mariculture Tailwaters by Using Alternating Pulse Current: Effects of Current Density and Current Conversion Period.WATER,14(8),16.
MLA	Xu, Jianping,et al."Enhancing the Performance of the Electrocoagulation-Filtration System Treating Mariculture Tailwaters by Using Alternating Pulse Current: Effects of Current Density and Current Conversion Period".WATER 14.8(2022):16.