Pretreatment of actual high-strength phenolic wastewater by manganese   oxide method

doi:10.1016/j.cej.2010.02.042

CORC > 北京大学 > 地球与空间科学学院

	Pretreatment of actual high-strength phenolic wastewater by manganese oxide method
	Fan, Chenzi ; Lu, Anhuai ; Li, Yan ; Wang, Changqiu
刊名	chemical engineering journal
	2010
关键词	Manganite Hausmannite Phenolic wastewater pH Oxidation AQUEOUS SUSPENSIONS ACTIVATED CARBON OXIDATION ADSORPTION BIRNESSITE EXTRACTION REMOVAL SURFACE TRANSFORMATION DISSOLUTION
DOI	10.1016/j.cej.2010.02.042
英文摘要	This paper deals with treating high phenol-concentrated wastewater from coal gasification by manganese oxide method. Mixed-phase manganese oxides of manganite and hausmannite were synthesized with industrial MnSO(4) and NaOH by air oxidation. The effects of sulfuric acid dosage, reaction time, temperature, manganese oxide grain size and concentration on removal efficiency of total phenols were studied with laboratory bench-scale experiments. The results indicated that the removal process was more effective under the experimental conditions, i.e. acidified media at pH < 4 and an excessive amount of fine particles with a long reaction time. Solution pH and manganese oxide concentration were two of the most important factors which should be well regulated to guarantee higher removal rate. The mixture of manganite and hausmannite showed improved activity for removal of total phenols, TOC and COD(Cr) as compared with MnO(2) (AR) but similar to cryptomelane and K-birnessite. Most of organic contaminants especially phenol which occupied absolute predominance in initial wastewater were removed to enhance the biodegradability for further biological treatment. This investigation will provide fundamental method for developing a pretreatment method of industrial phenolic wastewater with flexibility, simplicity and high activity. (C) 2010 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000278171000004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Environmental; Engineering, Chemical; SCI(E); 7; ARTICLE; 1; 20-26; 160
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155862]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Fan, Chenzi,Lu, Anhuai,Li, Yan,et al. Pretreatment of actual high-strength phenolic wastewater by manganese oxide method[J]. chemical engineering journal,2010.
APA	Fan, Chenzi,Lu, Anhuai,Li, Yan,&Wang, Changqiu.(2010).Pretreatment of actual high-strength phenolic wastewater by manganese oxide method.chemical engineering journal.
MLA	Fan, Chenzi,et al."Pretreatment of actual high-strength phenolic wastewater by manganese oxide method".chemical engineering journal (2010).