摘要
采用NaOH法、加热法、蒸汽法、离子交换法4种方法分别提取啤酒厂的剩余活性污泥的胞外多聚物(EPS),并研究其絮凝性能及对污泥的调理作用。结果表明NaOH法提取剩余污泥的EPS絮凝率45.4%,EPS能改善污泥沉降性能,且NaOH法提取的EPS可以使污泥的比阻下降15.2%,加快污泥的过滤速度,从而利于污泥的脱水性能。
Polymeric substances（EPS）in brewery surplus activated sludge were extracted and compared with four different methods of NaOH,heating,streaming and iron-exchange.The EPS obtained was used for sludge flocculation and conditioning.The EPS extracted with NaOH method showed 45.4% flocculation rate.The EPS was beneficial for sludge settling and filtering,because of that the specific resistance of sludge could be declined by 15.2% with the EPS extracted with NaOH method.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2010年第7期1369-1372,共4页
Chemical Industry and Engineering Progress
关键词
生物絮凝剂
胞外多聚物
絮凝
脱水
extracelluar polymeric substance
flocculation
dewatering
