Enhanced mineralization of hypersaline wastewater with Fe2+/Cu2+ catalyzed UV-Fenton process: process optimization and catalytic mechanism

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Enhanced mineralization of hypersaline wastewater with Fe2+/Cu2+ catalyzed UV-Fenton process: process optimization and catalytic mechanism
	Zhang, Weijun; Liu, Zhen; Yang, Xiaofang; Yang, Zhaoyi; Wang, Dongsheng
刊名	WATER SCIENCE AND TECHNOLOGY
	2018-09-01
卷号	78 期号:5 页码:1219-1227
关键词	copper(II) hypersaline wastewater mineralization radicals UV-Fenton
ISSN号	0273-1223
文献子类	Article
英文摘要	The efficiency of Fenton oxidation was inhibited by the high content of salt in the industrial wastewater. However, enhanced mineralization of hypersaline industrial wastewater is necessary for advanced treatment and subsequent wastewater salt recovery process. Therefore, Fe2+ and Cu2+ catalyzed UV-Fenton oxidation were carried out to improve the total organic carbon (TOC) removal efficiency for a hypersaline wastewater from resin manufacturing. The performance of UV-Fe/Cu-Fenton oxidation was comparatively investigated and optimized using response surface methodology (RSM) to develop a practical high-efficient mineralization treatment technique for hypersaline wastewater. More than 90% of TOC was removed under optimal conditions of UV-Fe2+ and UV-Cu2+-Fenton oxidation, namely 9.6 mM Fe2+ and 176 mM H2O2, and 2.95 mM Cu2+ and 276 mM H2O2, respectively. The reactive oxygen radicals identified using electron spin resonance (ESR) spectroscopy revealed that hydroxyl radical was dominant oxidant in UV-Fe2+-Fenton process, while HO2 center dot/O-2 center dot(-) played a more important role in the UV-Cu-Fenton system. The Cl effect is also different for UV Fe and Cu Fenton. Moreover, no scaling and sludge problem makes UV-Cu-Fenton a promising alternative method for efficient mineralization of hypersaline industrial wastewater.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41136]
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	Zhang, Weijun,Liu, Zhen,Yang, Xiaofang,et al. Enhanced mineralization of hypersaline wastewater with Fe2+/Cu2+ catalyzed UV-Fenton process: process optimization and catalytic mechanism[J]. WATER SCIENCE AND TECHNOLOGY,2018,78(5):1219-1227.
APA	Zhang, Weijun,Liu, Zhen,Yang, Xiaofang,Yang, Zhaoyi,&Wang, Dongsheng.(2018).Enhanced mineralization of hypersaline wastewater with Fe2+/Cu2+ catalyzed UV-Fenton process: process optimization and catalytic mechanism.WATER SCIENCE AND TECHNOLOGY,78(5),1219-1227.
MLA	Zhang, Weijun,et al."Enhanced mineralization of hypersaline wastewater with Fe2+/Cu2+ catalyzed UV-Fenton process: process optimization and catalytic mechanism".WATER SCIENCE AND TECHNOLOGY 78.5(2018):1219-1227.