改性活化硅酸处理低温低浊度地表微污染水的试验研究  

Treatment of low temperature and low turbidity polluted water by using modified active silica acid

作　　者：张龑[1] 徐静[1] 向凌云[1] 吴俊杰[1] 杨忠林[1] 马耀光[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《水资源与水工程学报》2010年第4期118-121,共4页Journal of Water Resources and Water Engineering

基　　金：国家大学生创新性试验计划项目(081071216)

摘　　要：以聚合氯化铝(PAC)为混凝剂,改性活化硅酸为助凝剂,通过烧杯混凝试验(处理苇水河微污染原水),研究混凝效果和确定改性活化硅酸的最佳工作参数,包括PAC的投加量,改性活化硅酸的粘度、静置时间、投加量、投加时间点及保存时间,除浊率提高到95%以上,并对处理工艺进行经济性评价。为地表微污染水资源的深度处理和利用提供科学依据。Weishui River less-polluted raw water was treated coagulated using polyaluminum chloride （ PAC） as coagulator and modified active silica as coagulant aid through jar tests.The coagulant effect was investigated and the best activated modified active silica acid ＇s operating parameters were determined,including the dosage of PAC and activated modified active silica acid＇s viscosity,holding time, adding dosage and time as well as keeping time.The turbidity removal rate was over 95% .Moreover,the economical efficiency of treatment process was evaluated.The results can provide a scientific basis for the treatment and use of surface less-polluted water.

关 键 词：低温低浊水 改性活化硅酸 PAC 助凝 经济评价 

分 类 号：X703[环境科学与工程—环境工程]