Iron particle formation under chlorine disinfection considering effects of deoxidizers in drinking water

	Iron particle formation under chlorine disinfection considering effects of deoxidizers in drinking water
	Zhuang, Yuan ; Chen, Ruya; Shi, Baoyou
	2021-12-15
Source Publication	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0013-936X
Volume	55 Issue:22 Pages:15380-15389
Abstract	Electrodeposition, which is an eco-friendly process with high efficiency, is one of the most promising technologies for metal recovery. However, the kinetics are often limited by the polarization and uncontrollable quality of deposits during the electrodeposition process, which restrict the efficiency and controllability of metal recovery. To ameliorate the limitations of the deposition rate and as-formed deposit quality, transient electrodeposition was introduced to control the microinterfacial reaction by regulating the relationship between charge and mass transfer. The Cu2+ removal efficiency and kinetic coefficient during 1 kHz transient electrodeposition were 17.4 and 17.7% higher than those under the conventional steady electric stimulus, respectively. Based on the combined results of X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDS), it was found that the chemical composition of the deposits from transient electrodeposition was more homogenous, as indicated by the low content of metal oxides. The in situ Raman spectra explained the homogenous composition based on the weak interaction of the electrode with the anions during the transient electrodeposition, which was mainly due to the enhanced dehydration under the oscillating or alternating electric field. The potential oscillation induced by the transient electric field also facilitated dehydration, charge transport, and mass transfer, which led to rapid and high-quality metal recovery. Transient electrodeposition will have a great guidance value in the field of metal electroplating and heavy metal recovery from wastewater by electrodeposition.
Department	中国科学院饮用水科学与技术重点实验室
Keyword	transient electrodeposition oscillated electric field microinterfacial reaction charge and mass transfer
Document Type	期刊论文
Identifier	https://ir.rcees.ac.cn/handle/311016/46914
Collection	中国科学院饮用水科学与技术重点实验室
Affiliation	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Zhuang, Yuan,Chen, Ruya,Shi, Baoyou. Iron particle formation under chlorine disinfection considering effects of deoxidizers in drinking water[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,55(22):15380-15389.
APA	Zhuang, Yuan,Chen, Ruya,&Shi, Baoyou.(2021).Iron particle formation under chlorine disinfection considering effects of deoxidizers in drinking water.JOURNAL OF HAZARDOUS MATERIALS,55(22),15380-15389.
MLA	Zhuang, Yuan,et al."Iron particle formation under chlorine disinfection considering effects of deoxidizers in drinking water".JOURNAL OF HAZARDOUS MATERIALS 55.22(2021):15380-15389.

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