Study on treatment of coking wastewater by biofilm reactors combined   with zero-valent iron process

doi:10.1016/j.jhazmat.2008.06.034

CORC > 北京大学 > 环境科学与工程学院

	Study on treatment of coking wastewater by biofilm reactors combined with zero-valent iron process
	Lai, Peng ; Zhao, Hua-zhang ; Zeng, Ming ; Ni, Jin-ren
刊名	journal of hazardous materials
	2009
关键词	Coking wastewater Biofilm Zero-valent iron (ZVI) Chemical oxygen demand (COD) Ammonia nitrogen (NH(3)-N) BIOLOGICAL NITROGEN REMOVAL DISSOLVED ORGANIC-MATTER FLUIDIZED-BED BIOREACTOR REFRACTORY COMPOUNDS DEGRADATION BIODEGRADATION REDUCTION LANDFILL EFFLUENT SYSTEM
DOI	10.1016/j.jhazmat.2008.06.034
英文摘要	Experiments were conducted to investigate the behavior of the integrated system with biofilm reactors and zero-valent iron (ZVI) process for coking wastewater treatment. Particular attention was paid to the performance of the integrated system for removal of organic and inorganic nitrogen compounds. Maximal removal efficiencies of chemical oxygen demand (COD), ammonia nitrogen (NH(3)-N) and total inorganic nitrogen (TIN) were up to 96.1, 99.2 and 92.3%, respectively. Moreover, it was found that some phenolic compounds were effectively removed. The refractory organic compounds were primarily removed in ZVI process of the integrated system. These compounds, with molecular weights either ranged 10,000-30,000 Da or 0-2000 Da, were mainly the humic acid (HA) and hydrophilic (Hyl) compounds. Oxidation-reduction and coagulation were the main removal mechanisms in ZVI process, which could enhance the biodegradability of the system effluent. Furthermore, the integrated system showed a rapid recovery performance against the sudden loading shock and remained high efficiencies for pollutants removal. Overall, the integrated system was proved feasible for coking wastewater treatment in practical applications. (C) 2008 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000263370200115&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Environmental; Engineering, Civil; Environmental Sciences; SCI(E); EI; PubMed; 52; ARTICLE; 2-3; 1423-1429; 162
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158974]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Lai, Peng,Zhao, Hua-zhang,Zeng, Ming,et al. Study on treatment of coking wastewater by biofilm reactors combined with zero-valent iron process[J]. journal of hazardous materials,2009.
APA	Lai, Peng,Zhao, Hua-zhang,Zeng, Ming,&Ni, Jin-ren.(2009).Study on treatment of coking wastewater by biofilm reactors combined with zero-valent iron process.journal of hazardous materials.
MLA	Lai, Peng,et al."Study on treatment of coking wastewater by biofilm reactors combined with zero-valent iron process".journal of hazardous materials (2009).