人民黄河2018，Vol.40Issue(3)：59-63,71,6.DOI:10.3969/j.issn.1000-1379.2018.03.014
南水北调滤后水残余铝的影响因素试验研究
Study on Influence Factor of Residual Aluminum in Filtered Water of the South to North Water Diversion Project
摘要
Abstract
In order to control the residual aluminum concentration, this paper took the South to North Diversion Water as raw water, and mainly studied the effects on residual aluminum in raw water of coagulant types and dosage,coagulant aid dosing ratio,pH adjustment meth-od and pH value and sedimentation time. Three aspects were analyzed in this paper,including the removal effect of turbidity,UV254and re-sidual aluminum concentration in filtered water to achieve the best residual aluminum control conditions. The results show that the optimum conditions are as follows:Poly aluminum chloride(PAC)as coagulant,and the optimum dosage is 25 mg/L;the coagulant aid is activated silicic acid,and the optimum addition ratio of coagulant and coagulant is 5:1;the pH of the raw water is adjusted to 7.5 and the sedimenta-tion time is 30min,the removal effect turbidity and UV254are better under these conditions, and the residual aluminum concentration is far below the national limit(0.2 mg/L).关键词
残余铝/混凝剂/助凝剂/pH值/南水北调Key words
residual aluminum/coagulant/coagulant aid/pH value/South to North Water Diversion分类
建筑与水利引用本文复制引用
朱灵峰,陈洁,侯煜堃,谷一鸣,孙倩..南水北调滤后水残余铝的影响因素试验研究[J].人民黄河,2018,40(3):59-63,71,6.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07404) （2012ZX07404）
大学生创新性实验计划项目. （）
