Adsorption behavior of Fe-Mn binary oxide towards As(III) and As(V) and its application in biogas slurry

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	Adsorption behavior of Fe-Mn binary oxide towards As(III) and As(V) and its application in biogas slurry
	Peng, Changjun ; Jiang, Xiuli ; Ji, Hongfang ; Wang, Yuanpeng ; Ouyang, Tong ; Li, Qingbiao, ; Wang YP(王远鹏) ; Li QB(李清彪)
刊名	http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.041
	2014
关键词	Adsorption Arsenic Manganese Oxidation Zinc
英文摘要	The adsorption behavior of arsenite (As(III)) and arsenate (As(V)) by Fe-Mn binary oxide (FMBO) was studied. The results indicated that FMBO had strong adsorption ability to both As(III) and As(V) and the maximum adsorption capacity was 111.10, 71.40 mg·g-1 respectively. As(III) and As(V) were adsorbed on FMBO surface through forming inner-sphere surface complexes by ligand exchange with hydroxyl groups, and As(III) removal by FMBO was through an oxidation and adsorption combined process. In addition, the influences of co-existing substances generally present in biogas slurry were examined. Zinc ion could promote As(III) and As(V) adsorption on FMBO and the adsorption capacity increased with increasing zinc ion concentration. Phosphate had significant effect on As(III) and As(V) removal. When P/As ratio was equal to 1, the adsorption capacity of As(III) and As(V) was reduced by 34.70%, 31.50%, respectively. However, organics, such as humic acid, animal protein and carbamide had no significant effect on As(III) and As(V) removal. Moreover, FMBO as adsorbent for removal arsenic of actual biogas slurry was investigated. The average removal rate of arsenic of actual biogas slurry was about 65%, decreasing the arsenic concentration of some biogas slurry to the drinking water and surface water discharge standard. Therefore, FMBO could be an attractive adsorbent for both As(V) and As(III) removal from biogas slurry. ? All Rights Reserved.
语种	英语
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89811]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Peng, Changjun,Jiang, Xiuli,Ji, Hongfang,et al. Adsorption behavior of Fe-Mn binary oxide towards As(III) and As(V) and its application in biogas slurry[J]. http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.041,2014.
APA	Peng, Changjun.,Jiang, Xiuli.,Ji, Hongfang.,Wang, Yuanpeng.,Ouyang, Tong.,...&李清彪.(2014).Adsorption behavior of Fe-Mn binary oxide towards As(III) and As(V) and its application in biogas slurry.http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.041.
MLA	Peng, Changjun,et al."Adsorption behavior of Fe-Mn binary oxide towards As(III) and As(V) and its application in biogas slurry".http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.041 (2014).