铜冶炼工艺废水中氟的脱除试验研究  

Removal of Fluorine from Copper Smelting Process Wastewater

作　　者：刘远东 李耀辉 LIU Yuandong;LI Yaohui(Guixi Smelter,Jiangxi Copper Corporation Limited,Guixi 335424,China;CGN Environmental Protection In-dustry Co.,Ltd.,Shenzhen 518038,China)

机构地区：[1]江西铜业股份有限公司贵溪冶炼厂,江西贵溪335424 [2]中广核环保产业有限公司,广东深圳518038

出　　处：《铜业工程》2023年第4期153-158,共6页Copper Engineering

摘　　要：为了解决企业工艺废水除氟工序中成本较高、结垢严重等弊端,以某铜冶炼企业初步处理的工业废水为研究对象,考察引入两种新的除氟试剂替代现有除氟试剂的可行性。通过单因素条件实验,探索了工业废水初始pH、反应时间、反应温度、搅拌速度、除氟试剂A用量和除氟试剂B用量对工业废水除氟效果的影响。研究结果表明:在1 L的工业废水中,初始pH为6.0、反应温度为30℃、反应时间为20 min、搅拌速度为300 r/min、除氟试剂A用量为5 mL、除氟试剂B用量为25 mL的条件下除氟效果最佳,除氟后液含氟不超过10.0 mg/L,除氟率大于80%。In order to solve the drawbacks of high cost and severe scaling in the fluoride removal process of wastewater treatment,the feasibility of introducing two new fluoride removal reagents to replace existing ones was investigated by taking the industrial wastewater initially treated by a copper smelting enterprise as the research object.The effects of initial pH,reaction time,reaction temperature,stirring speed,amount of defluorination reagent A and amount of defluorination reagent B on the defluorination effect of industrial wastewater were explored through single factor conditional experiments.The research results showed that in 1 L industrial wastewater,the best defluoridation effect was achieved when the initial pH was 6.0,the reaction temperature was 30℃,the reaction time was 20 min,the stirring speed was 300 r/min,the dosage of defluorination reagent A was 5 mL,and the dosage of defluorination reagent B was 25 mL.The fluorine content of the defluorinated solution did not exceed 10.0 mg/L,and the defluoridation rate was greater than 80%.

关 键 词：冶炼 工艺废水 除氟 除氟试剂 除氟率 

分 类 号：X758[环境科学与工程—环境工程] TQ124.3[化学工程—无机化工]