不同碳源对A/O-动态膜生物反应器膜污染的影响  

Effects of different carbon sources on membrane fouling of A/O-dynamic membrane bioreactor

作　　者：凌琪[1] 方涛[1] 伍昌年[1] 鲍超[1] 赵秋燕[1] 孔张成 孙冰香 张睿[1] 杨浩[1] 

机构地区：[1]安徽建筑大学水污染控制与废水资源化重点实验室,安徽合肥230601

出　　处：《应用化工》2015年第12期2173-2177,共5页Applied Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项课题(2014ZX07405003)

摘　　要：采用两套平行的A/O-动态膜生物反应器工艺处理市政污水,分别以乙酸钠（反应器A）、蔗糖（反应器B）为碳源,考察运行过程中不同碳源对EPS、溶解性蛋白质/溶解多糖比值、污泥粒径、Zeta电位的影响。结果表明,在运行过程中,反应器A中EPS累积量大于反应器B;A、B反应器中溶解蛋白质/溶解多糖比值分别为0.19~0.40和0.17~0.27,三维荧光图谱表明,A反应器中类蛋白荧光峰强于B反应器;反应器A中污泥粒径〈10μm的微粒所占的比例以及Zeta电位均大于反应器B。以蔗糖为碳源有利于减缓膜污染。The effects of different carbon sources on EPS,soluble protein / dissolved polysaccharide ratio,sludge particle sizes and Zeta potential were studied when the municipal wastewater was treated by two parallel A / O-dynamic membrane bioreactor processes,one with sodium acetate（ reactor A） as carbon sources,another with sucrose（ reactor B）. The results showed that in the process the EPS accumulated in reactor A was more than in reactor B,the soluble protein / dissolved polysaccharide ratios in reactor A and reactor B were 0. 19 ~ 0. 40 and 0. 17 ~ 0. 27 respectively,the peak of the class protein fluorescence in reactor A was stronger than that in reactor B as indicated in three dimensional fluorescence spectra,and the percentage of sludge particles less than 10 μm was higher in reactor A than in reactor B. Therefore,it could be concluded that the membrane fouling could be reduced more when the sucrose was used as carbon sources.

关 键 词：动态膜生物反应器 碳源 胞外聚合物 膜污染 

分 类 号：TQ085.4[化学工程] X703[环境科学与工程—环境工程]