Component analysis and risk assessment of anaerobically digested slurry from households in China

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	Component analysis and risk assessment of anaerobically digested slurry from households in China
	Ke, Lanting ; Wang, Haitao ; Wang, Yuanpeng ; He, Ning ; Li, Qingbiao ; Jiang XY(江小云)
刊名	http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.040
	2014
关键词	Anaerobic digestion Chemical oxygen demand Heavy metals Nitrogen Phosphates Pollution Risk assessment Slurries
英文摘要	Forty-three biogas slurries from household biogas plants using different substrates were collected from different parts of China. The contents of chemical oxygen demand (COD), ammonium nitrogen (NH4+-N), phosphate (PO43-) and heavy metals were determined. The concentrations of COD in cow dung and straw as raw materials were higher than other treatments, reaching 6800 mg·L-1 and 5800 mg·L-1 respectively. The concentrations of NH4+-N in pig manure and mix manure were higher than other treatments, reaching more than 1800 mg·L-1. The concentration of NH4+-N in cow dung was significantly lower than that in other materials, with the average being 450 mg·L-1. Therefore, COD/NH4+ ratio of 15 in the slurry with cow dung as raw material was significantly higher than those in other three materials (less than 5). The average PO43- concentrations of all raw biogas were lower than 80 mg·L-1. Mercury pollution was serious and universal in different materials and different provinces. Environment risk evaluation showed that the pollution in biogas slurries from Yunnan, Henan and Hubei was medium and could not be ignored. ? 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/2288/87696]
专题	管理学院－已发表论文
推荐引用方式 GB/T 7714	Ke, Lanting,Wang, Haitao,Wang, Yuanpeng,et al. Component analysis and risk assessment of anaerobically digested slurry from households in China[J]. http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.040,2014.
APA	Ke, Lanting,Wang, Haitao,Wang, Yuanpeng,He, Ning,Li, Qingbiao,&江小云.(2014).Component analysis and risk assessment of anaerobically digested slurry from households in China.http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.040.
MLA	Ke, Lanting,et al."Component analysis and risk assessment of anaerobically digested slurry from households in China".http://dx.doi.org/10.3969/j.issn.0438-1157.2014.05.040 (2014).