Nitrogen Removal in an A/A/O Pilot Plant with Nitrifier Bioaugmentation
Nitrogen removal in pilot-scale A/A/O system which bioaugmented with nitrifiers cultivated by reject water treating municipal wastewater was studied.The process of nitrogen removal was evaluated when temperature changed from 10℃ to 25 ℃.The results showed that the removal efficiency of NH4+-N increased with temperature and was consistent with the changing 0f nitrification activity.The activity of AOB increased faster in the range of 15℃ and 20℃ than that in the range of 10℃ and 15℃.However,the activity of NOB was increased more stably in the whole range of 10℃ and 20℃.AOB adapted more quickly than NOB during bioaugnentation.Besides,the pilot-scale and the full-scale system had a similar community structure.In spite of the lower nitrifying bacteria number,the nitrification activity ofbioaugmented pilot-scale plant was still higher than that in full-scale WWTP.
bioaugrentation nitrification temperature nitrifying activity community structure
Pei Li-ying Wei Ji-lin Peng Dang-cong Wang Bin-bin Zhang Xin-yan Yu Li-fang
Key lab of Water Resources,Environment and Ecology in Northwest China,Xi”an University of Architecture and Technology,Xi”an 710055,PR China
国内会议
天津
英文
255-263
2012-09-26（万方平台首次上网日期，不代表论文的发表时间）