摘要
讨论了对凹凸棒石黏土的热处理及纯化改性方法,利用改性凹土对含氟废水进行处理,考察了热改性条件及纯化凹土在不同pH值、凹土投加量、吸附时间等因素下对氟离子去除率的影响。结果表明:热改性凹土和纯化凹土对含氟量高达100mg/L的废水都有较好的处理能力,氟离子去除率可达93.68%以上,处理后的废水符合国家许可排放标准。
This modified methods of attapulgite that by heated and purified were studied, The modified attapulgite was used to treat the fluofide-containing wastewater. The test results show that fluoride removal rstes ere affected by the modified methods,pH value,the time and the dosage of attapulgite. The attapulgite that modified by heated end purified all have good effect on treatment of fluoride-containing westewater. The fluoride getting rid of rate ten be up to 93.68%.
出处
《非金属矿》
CAS
CSCD
北大核心
2006年第3期52-55,共4页
Non-Metallic Mines
基金
江苏科技攻关立项项目(项目编号:BE2004387)
关键词
氟
废水
凹土
处理
fluoride wastewater sttapulgite treatment
