TREATMENT OF LOW-TEMPERATURE AND LOW-TURBIDITY WATER USING MODIFIED ACTIVE SILICA ACID
Difficult for low turbidity water treatment, the treated not reached the drinking water quality standards, the beaker coagulation has been set. In this experiment, the removal effects of lowtemperature and low-turbidity water were investigated by using polyaluminum chloride (PAC) and modified active silicic acid. The results indicated that individual addition PAC turbidity removal rate was less than 80％. While adding 67 mg /L PAC and stirring 9-13min, then adding 20 ml /L modified active silica acid of 5％ sodium silicate solution and 0.1％ polyacrylamide solution with volume ratio of 15:1 and standing 5 min, the coagulant effect was the best and the turbidity removal rate was more than 90％. The optimizing keep time for modified active silica acid was 24 h.
Low temperature and low turbidity water Activation of silica modified PAC Coagulation
Jing Xu Xin Zhang Yao-guang Ma
Northwest A&F University, College of Water Resources & Architectural Engineering.Yangling 712100, China
国际会议
西安
英文
660-664
2011-09-22（万方平台首次上网日期，不代表论文的发表时间）