改性花生壳对重金属含铬废水的吸附研究  

Study on the Adsorption of Modified Peanut Shell for Cr^(6+) in Wastewater

作　　者：赵晖[1] 冯丽君[1] 冯梦思[1] 舒倩茜[1] 李波[1] 

机构地区：[1]武汉纺织大学环境工程学院,湖北武汉430073

出　　处：《武汉纺织大学学报》2011年第6期44-47,共4页Journal of Wuhan Textile University

基　　金：中国纺织工业协会项目(2008036)

摘　　要：对改性花生壳处理含Cr6+废水进行研究,考察吸附时间、改性花生壳投加量、pH值、Cr6+溶液初始浓度对吸附效果的影响。实验结果表明,在吸附时间100min、改性花生壳投加量为5.0g/L、pH值2.0、Cr6+溶液初始浓度25mg/L、常温的优化实验条件下,硝酸改性花生壳比盐酸改性花生壳吸附效果好,硝酸改性花生壳吸附率达到87%,盐酸改性花生壳为71%。改性花生壳是一种较高效的重金属离子吸附剂。Treatment of Cr6＋-containing wastewater by modified peanut shell was studied.The influences of adsorption time,quantity of modified peanut shell,pH value and initial concentration on its adsorption to Cr6＋ in water were examined.The experimental results show that under the following optimization conditions of adsorption time 100min,the dosage of modification woodflour 5.0g/L,pH 2.0,initial concentration25mg/L and room temperature,the adsorption rate of Cr6＋ could be up to 71%.The results indicate that modified peanut shell is a kind of good and cost effective adsorbent.

关 键 词：花生壳 改性 Cr6+ 吸附 

分 类 号：X703.1[环境科学与工程—环境工程]