铝型材厂含氟废水的除氟工艺研究  

Study of technological conditions for fluoride removal from fluoride-containing wastewater in aluminum industry

作　　者：唐维学[1] 叶富华[1] 杨改霞[1] 

机构地区：[1]广州有色金属研究院,广东广州510651

出　　处：《工业水处理》2000年第10期19-20,共2页Industrial Water Treatment

摘　　要：通过实验室模拟混凝沉降法除氟过程 ,研究了铝型材工业废水除氟的适宜工艺条件。在实验条件下 ,氟与氢氧化钙、聚铝、FW络合助剂形成多元络合物复合盐 ,然后用聚丙烯酰胺絮凝 ,废水中氟浓度可降至 4mg/L。经过两厂的工业废水现场试验 ,初步结果表明 ,排放废水含氟量达到国家标准。The moderate technological conditions for fluoride removal in aluminum industry by coagulation and precipitation are studied. Under the experimental conditions fluoride forms a multicomponent complex with calcium hydroxide,polymeric aluminum.FW complexing agent and coagulates with polyacrylamide. The fluoride concentration of wastewater can be reduced to 4 mg/L. The results of two aluminum industry tests show that the amount of fluoride in wastewater meets the drainage standard.

关 键 词：含氟废水 混凝沉降法 除氟 废水处理 铝型材 

分 类 号：X757.031[环境科学与工程—环境工程]