聚合氯化铝-聚丙烯酰胺处理含氟废水研究
Experimental Study on Effects of Polymerized Aluminum Chloride-Polyacrylamide on Treatment of Fluoride-Containing Industrial Wastewater
黄志勇 1左晨鹏2
作者信息
- 1. 贵州省水利水电勘测设计研究院有限公司,贵州 贵阳 550002
- 2. 南京大学 环境规划设计研究院集团股份公司,江苏 南京 210000
- 折叠
摘要
使用聚合氯化铝(PAC)-聚丙烯酰胺(PAM)联合处理含氟废水,考察了PAC投加量、PAM浓度、pH值、反应时间以及搅拌速度对除氟效果的影响.结果表明,在PAC投加量4400 mg/L、PAM浓度1 mg/L、溶液pH值7.0、反应时间 20 min、搅拌速度 300 r/min时,氟去除率达 97.98%,除氟后溶液中氟离子残余浓度为 0.81 mg/L.溶液中杂质离子的存在会降低PAC的除氟性能.
Abstract
Fluoride-containing industrial wastewater was treated by using a composite coagulant of polymerized aluminum chloride(PAC)and polyacrylamide(PAM),and effects of PAC dosage,PAM concentration,pH value,reaction time and stirring speed on fluoride removal efficiency were explored.The results show that by adding 4400 mg/L PAC,with PAM concentration of 1 mg/L,solution with pH of 7.0,reaction time of 20 min and stirring speed of 300 r/min,the fluoride removal rate can reach 97.98%,leading to the residual concentration of fluoride ion at only 0.81 mg/L.However,the presence of impurity ions can reduce the fluoride removal rate by PAC.
关键词
废水处理/聚合氯化铝/含氟废水/除氟/混凝沉淀Key words
wastewater treatment/polymerized aluminum chloride(PAC)/fluoride-containing wastewater/fluoride removal/coagulation and sedimentation引用本文复制引用
基金项目
国家自然科学基金(52269025)
贵州省水利科技项目(KT202226)
出版年
2024
NETL
NSTL
万方数据