摘要
提出用改性海泡石-粉煤灰复剂处理含氟废水，探讨了各种因素对处理含氟废水的影响。结果表明：经改性活化后的海泡石-粉煤灰复剂对水溶液中氟的去除效果明显优于单一的海泡石和粉煤灰。处理的最佳条件为：室温25℃，固液比1：500，pH3．0～6．0，时间30min。在此条件下处理含氟废水，对模拟水样的除氟率可达94％。
An available method of treating fluoride-bearing wastewater with modified sepiolite-fly ash composite was proposed. The influences of diversified factors on treating fluoride-containing wastewater were discussed. The results demonstrated that the treatment efficiency of using modified sepiolite-fly ash composite was better evidently than the one of using sepiolite or fly ash singly. The optimum conditions of treatment were room temperature 25℃ , ratio of solid to water 1 ： 500, pH3.0 - 6.0, treatment time 30 minutes. The defluorinating ratio could reach 94% for the simulative sample under the optimum conditions.
出处
《化工矿物与加工》
CAS
北大核心
2007年第4期17-19,23,共4页
Industrial Minerals & Processing
关键词
改性
海泡石
粉煤灰
含氟废水
modification
sepiolite
fly ash
fluoride-bearingwastewater
