全程自养脱氮污泥颗粒化及其脱氮性能的研究.pdf

30 2 Vol. 30, No. 2 2009 2 Feb. , 2009 ENVIRONMENTAL SCIENCE * , , , , ( , 410082) : , SBR , . , , , DO 03~ 05 mgL, , 753% . , , , . Ca , , , . : ; ; ; : X703. 1 : A :2009) Cultivation and Nitrogen Removal Characteristics of Deammonifition Granules TANG Linping, LIAO Dexiang, LI Xiaoming, ZENG Guangming, YI Ting ( College of Environmental Science and Engineering, Hunan University, Changsha 410082, China) Abstract:An SBR reactor seededwith anaerobic granular sludge was started up to enrich deammonifition bacteria and investigate its nitrogen removal characteristics. Research results showed that deammonification granular sludge could be cultivated successfully with firstly enriched ANAMMOX microorganisms in anaerobic condition and then controlled the dissolved oxygen in the SBR reactor between 03 and 05 mgL, in which the maximum total nitrogen removal rate reach 753% . When the Ca and P concentrations of the medium exceeded the necessary quantity, salt precipitation was observed and interfered with microbial activity and caused a decrease of the nitrogen removal rate of the reactor system. Salt precipitation was avoided by diminishing adequately the Ca and P concentrations of the medium during the following operation period, and the total nitrogen removal rate restored. Key words: deammonifition; nitrification; ANAMMOX; granular sludge , ; , , CN ( , ) , , . , . 20 90 , , SBR , , , , , , CANON[ 1~ 3] OLAND[ 4, 5] deammonification[ , 7] . . 1 , 1. 1 . - 1 - 1