%0 Journal Article
%T Non-filamentous Sludge Bulking Caused by Low Concentration of Dissolved Oxygen and Phosphorus Deficiency and Its Control<br>低溶解氧和磷缺乏引发的非丝状菌污泥膨胀及控制
%A WANG Jian-fang
%A ZHAO Qing-liang
%A LIN Ji-kan
%A JIN Wen-biao
%A XIAO Ben-yi
%A <br>王建芳
%A 赵庆良
%A 林佶侃
%A 金文标
%A 肖本益
%J 环境科学
%D 2007
%I 
%X Non-filamentous sludge bulking occurred during sludge acclimation in lab-scale bio-reactors and the characteristics, properties and degrading pollutants capability of non-filamentous sludge were analyzed. Both low DO concentration (0~0.7mg/L) and low ratio of P/BOD5 (0.78/100) resulted in excessive proliferation of viscous zoogloea and sludge bulking. SVI was directly proportional to extracellular polysaccharides and was inversely proportional to hydrophobicity of sludge. The sludge bulking could be effectively controlled by increasing DO concentration and P/BOD5 ratio. Besides, adding some porous padding into viscous bulking sludge was a useful method which might avoid the deterioration of sludge settlement and maintain good performance in the system. The viscous bulking sludge could not be controlled by addition of NaClO.
%K non-filamentous bulking
%K hydrophobicity
%K extracellular polysaccharides
%K dissolved oxygen
%K phosphorus deficiency<br>非丝状菌膨胀
%K 憎水性
%K 胞外多聚糖
%K 低溶解氧
%K 磷缺乏
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=04A211B9D7B0AA4E49901BD94017393B&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=6313C162FF75889A&eid=64808317C39DF331&journal_id=0250-3301&journal_name=环境科学&referenced_num=2&reference_num=13