增效澄清池处理低温低浊水的中试研究  

Pilot Study on DENSADEG for Treatment of Low Temperature and Low Turbidity Water

作　　者：黄廷林[1] 栾新晓[1] 解岳[1] 丛海兵[1] 赵育龙[1] 沈鑫[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《中国给水排水》2009年第1期78-81,共4页China Water & Wastewater

基　　金：国家科技支撑计划项目(2006BAJ08B08)

摘　　要：增效澄清池是一种将高效接触絮凝和斜管沉淀有机组合的新型水处理工艺，采用此工艺处理西宁市低温低浊水的试验结果表明，最佳的工艺参数：PAC投量为7～9mg／L、PAM（分子质量为10000～12000ku）投量为0．45mg／L、混合池搅拌强度为600s^-1左右、网格反应池的搅拌强度为30s^-1左右、搅拌反应池的搅拌强度为120—160s^-1、污泥回流比为1．47％～1．9％，在此条件下，澄清池的出水浊度可控制在1NTU左右，对CODM。的去除率为25％以上。DENSADEG is a new type of clarifier-thickener which combines contact flocculation and declined tube settling technologies. DENSADEG process low turbidity water of Xining City. The results show that the was applied to treat the low temperature and optimum process parameters are PAC dosage of 7 to 9 mg/L, PAM （molecular weight of 10 000 to 12 000 ku） dosage of 0.45 mg/L, stirring intensity of about 600s^-1 in mixing tank, stirring intensity of about 30 s^-1 in lattice reaction tank, stirring intensity of 120 to 160 s^-1 in stirring reaction tank and sludge recycle ratio of 1.47% to 1.9%. Under the conditions, the turbidity of effluent is about 1 NTU and the CODMn removal rate is above 25%.

关 键 词：增效澄清池 低温低浊水 浊度 优化 

分 类 号：TU991.2[建筑科学—市政工程]