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2018, Volume 12, Issue 2

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Frontiers of Environmental Science & Engineering >> 2018, Volume 12, Issue 2 doi: 10.1007/s11783-017-0981-z

Effect of different carbon sources on performance of an A

. School of Environment and Spatial Informatics, China University of Mining & Technology, Xuzhou 221116, China.. Guangdong polytechnic of Water Resources and Electric Engineering, Guangzhou 510635, China

Available online: 2017-08-09
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Abstract

Effect of different carbon sources on purification performance and change of microbial community structure in a novel A N-MBR process were investigated. The results showed that when fed with acetate, propionate or acetate and propionate mixed (1:1) as carbon sources, the effluent COD, NH -N, TN and TP were lower than 30, 5, 15 and 0.5 mg·L , respectively. However, taken glucose as carbon source, the TP concentration of effluent reached 2.6 mg·L . Process analysis found that the amount of anaerobic phosphorus release would be the key factor to determine the above effectiveness. The acetate was beneficial to the growth of associated with biological phosphorus removal, which was the main cause of high efficiency phosphorus removal in this system. In addition, it could eliminate the associated with glycogen-accumulating organisms and guarantee high efficiency phosphorus uptake of phosphorus accumulating organisms in the system with acetate as carbon source.

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