摘要
采用单因子实验的方法 ,选择了合适的改性剂 ,对粉煤灰的无机改性进行了研究 ,分析了改性灰的吸附平衡时间和 pH值对改性灰吸附效果的影响。研究结果表明 :用双氧水改性过的粉煤灰有较好的效果 ,对模拟染料废水的色度去除力很强。当改性灰的投加量为0 .5%、pH >9时 ,脱色率可达 95%以上。
In this paper,a method of modifying fly ash is studied,by using the single factor experiments.The effects of modification reagents,the time of adsorption equilibrium,and pH are investigated.Experimental results show that fly ash modified with H 2O 2 have a better effect.When the dosage of modified ash is 0.5%,the removal rate of color in wastewater with pH more than 9 exceeds 95%.
基金
国家"九五"攻关项目!"高浓度高色度印染废水的处理研究"子课题
批号 96-90 9-0 5 -0 2 -0 3
