%0 Journal Article
%T Effect of p-nitrophenol Shock on Sludge Activity and Microbial Populations and in UASB Reactor<br>对硝基苯酚冲击对UASB反应器中污泥活性和微生物种群的影响
%A MEI Qin
%A GAO Guo-Qing
%A YU Fang-Bo
%A LIU Lian-Cheng
%A SHEN Biao
%A <br>梅琴
%A 高国庆
%A 虞方伯
%A 刘连成
%A 沈标
%J 微生物学通报
%D 2007
%I 
%X Effect of p-nitrophenol shock on microbial populations and sludge activity in UASB reactor was studied by DGGE-PCR of 16S rDNA fragments and detection of COD removing and biogas yield. The results showed that p-nitrophenol seriously inhibited the sludge activity, resulting in the drop of biogas and COD removing rate. The 40mg/L p-nitrophenol had more inhibition than 20mg/L p-nitrophenol. It would take 27 and 16 days respectively for reactor to recover after 40mg/L and 20mg/L p-nitrophenol shock. The diversity of eubacteria and methanogens were also effected by the p-nitrophenol shock. The variation of eubacteria was more than that of methanogens after p-nitrophenol shock. The drop of biogas was mainly related to the variation of Methanosaeta sp. and Methanomicrobia sp. after p-nitrophenol shock. Among the eubacteria the population of Chloroflexi sp. ,Bacteroide sp. and Anaerovibrio sp. decreased greatly after p-nitrophenol shock. And more, the Rheinheimera sp disappeared after 40mg/L p- NP treatment. But the Flavobacteria sp. appeared after p-nitrophenol shock, which was probably related to the degradation of p-NP.
%K p-nitrophenol shock
%K Bacteria populations diversity
%K Sludge activity<br>对硝基苯酚冲击
%K 微生物种群多样性
%K 污泥活性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=78024727B5F4EF6AA9CA8E605B5FC464&aid=8ED42C4FB657AD339B428B69625AF8B7&yid=A732AF04DDA03BB3&vid=339D79302DF62549&iid=B31275AF3241DB2D&sid=D60A23E3DA48A028&eid=A91C28383511878F&journal_id=0253-2654&journal_name=微生物学通报&referenced_num=0&reference_num=12