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	Effect of ammonium concentration on the methanogenic activity of anaerobic granular sludge
	He Shijun ; Wang Jianlong ; Zhao Xuan
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ ammonium compounds batch processing (industrial) bioreactors chemical industry granular materials sludge treatment waste recovery/ ammonium concentration methanogenic activity anaerobic granular sludge batch experiments anaerobic baffled reactor ammonium ions biogas production methane production alkalinity buffering capacity pH sludge loading rates/ E0230 Environmental issues E1525 Industrial processes E3628 Biotechnology industry E3626 Chemical industry
中文摘要	The effect of various ammonium concentrations on the methanogenic activity of anaerobic granular sludge and the recovery of the biological activity were investigated using batch experiments with the sludge obtained from an operating anaerobic baffled reactor (ABR). The experimental results indicate that ammonium ions (NH/sub 4//sup + /-N) have both positive and negative effects on anaerobic sludge, depending on the initial ammonium concentration. The ammonium enhances the biogas production by 5% at 0.2 g/L and by 10% at 0.4 g/L with respect to the control. However, the methanogenic activity was inhibited by 7% at the ammonium concentration of 0.8 g/L. As the ammonium concentration increased to 2, 3 and 4 g/L, the methane production decreased by 20%, 28% and 45%, respectively, compared with the control. Furthermore, the results also show that the effect of ammonium on methanogenic activity of anaerobic granular sludge is dependent on several factors, such as the alkalinity or buffering capacity, temperature, pH, and the sludge loading rates.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22770]
专题	清华大学
推荐引用方式 GB/T 7714	He Shijun,Wang Jianlong,Zhao Xuan. Effect of ammonium concentration on the methanogenic activity of anaerobic granular sludge[J],2010, 2010.
APA	He Shijun,Wang Jianlong,&Zhao Xuan.(2010).Effect of ammonium concentration on the methanogenic activity of anaerobic granular sludge..
MLA	He Shijun,et al."Effect of ammonium concentration on the methanogenic activity of anaerobic granular sludge".(2010).

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