%0 Journal Article
%T Study on the performance of the hybrid anammox reactor for biological nitrogen removal
复合式厌氧氨氧化反应器脱氮性能研究
%A GAO Yanning
%A LIU Zhijun
%A FURUKAWA Kenji
%A
高彦宁
%A 刘志军
%A 古川宪治
%J 环境科学学报
%D 2011
%I
%X A hybrid reactor for anaerobic ammonia oxidation (anammox) process was developed which combined a fixed-bed using non-woven fabrics as biomass carrier with a slow speed agitated bed. The performance of higher biomass retention was obtained in the reactor, and the anammox microorganism in a loose flocculating structure before inoculation formed rapidly into granules. The nitrogen removal ability of the reactor increased obviously in the short term, and the start-up time of the reactor shortened greatly. Only in 38 days, the total nitrogen removal rate (TNRR) reached 1.9 kg·m-3·d-1 and then doubled to 3.8 kg·m-3·d-1 within 17 days. During 180 operating days, a maximum TNRR of 6.6 kg·m-3·d-1 was obtained, and the specific anammox activity (SAA) maintained basically in 0.32 kg·kg-1·d-1. The testing results of size distribution and SEM observation confirmed that anammox sludge granulation process can be greatly enhanced in the mechanical stirred reactor at a lower rotating speed. The anammox bacteria content in the microorganism sludge was about 70%, determined by situ hybridization (FISH) analysis method.
%K Anammox
%K reactor
%K slow speed agitated bed
%K fixed bed
%K FISH
厌氧氨氧化
%K 反应器
%K 低速搅动床
%K 固定床
%K FISH
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=D1920AB56F28E37CF0387EC1095D89A1&yid=9377ED8094509821&vid=4AD960B5AD2D111A&iid=708DD6B15D2464E8&sid=3DC983F807BF22A5&eid=097335C23A0E51D9&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=1&reference_num=25