摘要
针对东营南郊引黄水库微污染原水，在不同絮凝方式及搅拌速度条件下，进行了污泥回流强化絮凝效能的研究。结果表明，当污泥回流量在5％～10％时，对絮凑毛／沉淀工艺的强化效果较好，此时，采用省略传统搅拌方式中的中速和慢速搅拌过程而仅在300r／min条件下快速搅拌50S的絮凝方式，对有机物的去除效果以及沉淀效能均优于传统絮凝方式，对DOC和UV254的去除率分别可达到42％和39％。
Under conditions of different flocculation modes and stirring rates, a study on enhanced flocculation by sludge recycle was conducted to solve the problems of the micro-polluted raw water in Nanjiao reservoir in Dongying City. The results showed that when the sludge recycle flow was 5% to 10% , the enhanced efficiency of the flocculation/sedimentation process was good. The enhanced floccu- lation with rapid stirring for 50 s at 300 r/min and without medium and slow stirring process in the tradi- tional stirring mode had higher removal efficiency of organic matter and higher sedimentation efficiency than the conventional floeculation. The removal rates of DOC and UV254 achived 42% and 39% respec- tively.
出处
《中国给水排水》
CAS
CSCD
北大核心
2014年第19期58-60,共3页
China Water & Wastewater
关键词
给水处理
污泥回流
絮凝方式
搅拌速度
water treatment
sludge recycle
flocculation mode
stirring rate
