复合盐法处理酸性含氟废水  

Treating acidic waste-water with fluorine viacomplex salt treatment

作　　者：程银芳[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《湖北师范学院学报（自然科学版）》2011年第1期7-11,共5页Journal of Hubei Normal University(Natural Science)

摘　　要：研究用复合盐(石灰+聚磷+明矾)体系处理酸性含氟废水,单独使用石灰或聚磷除氟效果不佳,采用复合盐法除氟效果较好;实验结果表明:当石灰用量为1.75g,聚磷用量为120mg,明矾用量为120mg时处理1L含氟废水,反应时间为5min、反应出水符合国家排放标准.Treatment of waste-water containing fluorine is a focus of industrial waste-water in China.My study attempts to prove the practicality of treating acidic waste-water with fluorine via complex salt treatment（Lime ＋ Sodium Tripolyphosphate ＋ Alum） in terms of economic rationality and technical feasibility.Complex salt treatment of waste-water containing fluorine is more effective than that we use only Lime or Sodium Tripolyphosphate.The optimum reaction conditions are ： treatment of 1L waste water containing fluorine needs 1.75g Lime,120mg Sodium Tripolyphosphate and 120mg Alum,and reaction time is 5min.Reaction water meets the national emission standards.

关 键 词：含氟废水 复合盐法 絮凝沉降 

分 类 号：X703[环境科学与工程—环境工程]