Characteristics of denitrifying phosphorous removal in anaerobicanoxic SBR system

摘要：

Simultaneous biological phosphorous and nitrogenremoval was investigated in an anaerobic/anoxic sequencingbatch reactor (A/A SBR) enriched with denitrifying phosphorousremoving bacteria (DPB) sludge. The lab-scale experiments wereconducted under the conditions of various SRTs (14d, 60d, and34d), COD concentrations (200 mg/L, 400 mg/L, and 600mg/L),and nitrate concentrations (60, 80, 100mg/L). These key factorshad significant impact on the performance of the denitrifyingphosphorous removal system. The results indicated that SRT setas 34d was favorable for the denitrifying phosphorous removalsystem. An increase of COD concentration from 200mg/L to600mg/L led to the increase of anaerobic phosphorous release,but excessive residual organics in the anoxic stage inhibitedphosphorous uptake. Anoxic phosphorous uptake increased withan increasing nitrate concentration under a threshold level.When nitrate concentration in the system was limited, secondaryphosphorous release appeared.

作者: Xin-xin Jiang Fang Ma Xiao-xin Zhang Jun Yin Li-li Wang

作者单位: State Key Laboratory of Urban Water Resource and Environment, Harbin, 150090, China Department of Mu Department of Municipal and Environmental Engineering, Harbin Institute of Technology Department of

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）