Characterization and treatment of landfill leachate membrane concentrate by Fe2+/NaClO combined with advanced oxidation processes
Zhao, Xu; Wei, Xiaoyun; Qiao, Meng
刊名SCIENTIFIC REPORTS
2018-08-21
卷号8页码:-
ISSN号2045-2322
文献子类Article
英文摘要Landfill leachate membrane concentrate (LLMC) is a type of non-biodegradable wastewater intercepted by the membrane filtration of the landfill leachate membrane bioreactor (MBR) effluent. The concentrations of chemical oxygen demand (COD) and ammonia nitrogen (NH4+-N) in the LLMC collected from a landfill in Beijing were determined to be 4700 mg/L and 487 mg/L, 2-5 times higher than those in the MBR effluent. The photoelectro oxidation (PEO) followed with the NaClO enhanced Fe2+ coagulation were more effective for the removal of COD than the Fenton oxidation followed with the enhanced coagulation. The final removal efficiencies of COD, UV254, NH4+-N and color degree were 86%, 95%, 93% and 95% with Fe2+ (90 mmol/L) and NaClO (60 mmol/L, Fe2+: NaClO = 1.5:1), and PEO for 3 hours with a current density of 400 A/m(2). Due to the existence of Cl-, the chlorinated intermediates, which would be more toxic, were detected in the PEO treatment. However, the intermediates could be eliminated finally. As a result, the NaClO enhanced Fe2+ coagulation treatment combined with PEO treatment was efficient for the treatment of LLMC.
内容类型期刊论文
源URL[http://ir.rcees.ac.cn/handle/311016/41328]  
专题生态环境研究中心_中国科学院饮用水科学与技术重点实验室
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GB/T 7714
Zhao, Xu,Wei, Xiaoyun,Qiao, Meng. Characterization and treatment of landfill leachate membrane concentrate by Fe2+/NaClO combined with advanced oxidation processes[J]. SCIENTIFIC REPORTS,2018,8:-.
APA Zhao, Xu,Wei, Xiaoyun,&Qiao, Meng.(2018).Characterization and treatment of landfill leachate membrane concentrate by Fe2+/NaClO combined with advanced oxidation processes.SCIENTIFIC REPORTS,8,-.
MLA Zhao, Xu,et al."Characterization and treatment of landfill leachate membrane concentrate by Fe2+/NaClO combined with advanced oxidation processes".SCIENTIFIC REPORTS 8(2018):-.
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