PAC+改性活化硅酸在处理低温低浊度水中的应用  

Application of PAC modified active silica acid to treat the low-temperature and low-turbidity water

作　　者：徐静[1] 张龑[1] 王珑[1] 党磊[1] 姚丹婷[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6期41-43,47,共4页Journal of Water Resources and Water Engineering

基　　金：国家大学生创新性实验项目(081071216)资助

摘　　要：通过烧杯混凝实验,研究了以PAC+改性活化硅酸与单独使用PAC处理石头河低温低浊水的处理效果。研究表明:应用PAC+改性活化硅酸处理低温低浊水比单独使用PAC的净水作用显著,去除率可提高十几个百分点,在经济上也可使地表水处理厂的净水费用降低,明显提高水厂收益;应用PAC+改性活化硅酸处理低温低浊水时,表现出絮花大,沉淀快,pH值稳定,浊度低的特点;同时,在去除固体悬浮物、化学需氧量和浊度的效果方面具有很好的一致性。The removal effects to treat the low temperature and low-turbidity water from Shitou River were researched by using polyaluminum chloride（PAC） ＋ modified active silica acid and PAC alone through the jar test.The results indicated as follows： While treating low temperature and low-turbidity water,purified result of using PAC ＋ modified active silica acid is significant better than using polyaluminum chloride（PAC） alone,the removal rate of turbidity can increased by more than 10 percentage,it will decreases surface water treatment plant＇s costs and increases benifit Earnings.When treated low temperature and low-turbidity water using PAC ＋ modified active silica acid,witch exerts the features of big vitriol flower,quickly settling rate,stability value of pH and low turbidity.There is also a good consistent in the removal rate of suspended solids（SS）,chemical oxygen demand and turbidity.

关 键 词：PAC 改性活化硅酸 低温低浊水 温度 

分 类 号：TU991.22[建筑科学—市政工程]