改性粉煤灰对废水中Cr(Ⅵ)的吸附研究  

Study on Adsorption of Cr(Ⅵ) from Waste Water by Modified Fly Ash

作　　者：闫春燕[1] 伊文涛[1] 

机构地区：[1]枣庄学院化学化工系,山东枣庄277160

出　　处：《矿产综合利用》2010年第2期37-40,共4页Multipurpose Utilization of Mineral Resources

摘　　要：含Cr(Ⅵ)废水对环境危害巨大,对其处理技术的研究也越来越受到关注。本文对改性粉煤灰吸附处理模拟含铬废水进行了试验研究,并探讨了吸附时间、改性粉煤灰投加量、Cr(Ⅵ)初始浓度、pH值和温度等因素对除铬效果的影响。结果表明,改性粉煤灰能有效吸附含Cr(Ⅵ)废水,其吸附过程符合Langmuir模型。The Cr（VI） -containing wastewater has great hazard on environment. In recent years, considerable attention was given to the treatment technologies of this kind of wastewater. An experimental study on adsorption of Cr （VI） from the simulated chromium - containing wastewater by modified fly ash was performed. The factors influencing the removal rate of Cr（ VI）, such as contact time, dosage of modified fly ash, initial Cr（VI） concentration, pH value and temperature were researched. The results showed that the modified fly ash can effectively adsorb Cr（VI） from wastewater, and the adsorption process accords with Langrnuir adsorption isotherm.

关 键 词：改性粉煤灰 含CR(VI)废水 吸附 

分 类 号：TQ028.7[化学工程]