Simultaneous achievement of refractory pollutant removal and energy production in the saline wastewater treatment

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

	Simultaneous achievement of refractory pollutant removal and energy production in the saline wastewater treatment
	Xiao, Ke ; Chen, Siyuan ; Yang, Bo ; Zhao, Xu ; Yu, Gang ; Zhu, Caizhen
刊名	CHEMICAL ENGINEERING JOURNAL
	2019-08-01
卷号	369 页码:845-853
关键词	Saline wastewater Perfluorinated compounds Energy recovery Photocatalytic oxidation Flocculation
ISSN号	1385-8947
英文摘要	A novel solar-wastewater-energy recovery system was presented to simultaneously remove refractory organic pollutants from saline wastewater and produce energy. To accomplish this goal, a two-chamber cell was fabricated. The anode chamber integrating photo-oxidation and flocculation was developed by using a TiO2 nanotube array (TNA) and Al foil. A dopamine modified carbon felt (DPA/CF) electrode was located in the cathode chamber to produce H2O2 by the two-electron reduction of O-2 with electrons generated on the anodes. Under sunlight irradiation, the TNA photoanode initiated the degradation of perfluorodecylamine (PFDA) as typical refractory pollutant and selectively transformed its organic nitrogen to N-2 and NO3- with yields of 87% and 12%, respectively. Compared with PFDA removal efficiency using single flocculation, the efficiency was improved by more than 5 times (ca. 96.6%) in the combined process of photo-oxidation and flocculation center dot H2O2 production was also achieved using the DPA/CF cathode, obtaining a high concentration of 5.0 mM. Furthermore, this study revealed that the reversible reaction between dehydrogenation and hydrogenation on polydopamine accomplished the catalytic reduction of O(2)to H2O2. The present study proposes a new approach involving energy recovery in saline wastewater treatment for an energy-sustainable society.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42671]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Tsinghua Univ, POPs Res Ctr, Sch Environm, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Ke,Chen, Siyuan,Yang, Bo,et al. Simultaneous achievement of refractory pollutant removal and energy production in the saline wastewater treatment[J]. CHEMICAL ENGINEERING JOURNAL,2019,369:845-853.
APA	Xiao, Ke,Chen, Siyuan,Yang, Bo,Zhao, Xu,Yu, Gang,&Zhu, Caizhen.(2019).Simultaneous achievement of refractory pollutant removal and energy production in the saline wastewater treatment.CHEMICAL ENGINEERING JOURNAL,369,845-853.
MLA	Xiao, Ke,et al."Simultaneous achievement of refractory pollutant removal and energy production in the saline wastewater treatment".CHEMICAL ENGINEERING JOURNAL 369(2019):845-853.