改性花生壳吸附水中Cr^(6+)的研究  

Study on Adsorption of Cr^(6+) in Water by Modified Peanut Shell

作　　者：张庆芳[1] 杨国栋[1] 孔秀琴[1] 赵祥[1] 

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《化学与生物工程》2008年第2期29-31,共3页Chemistry & Bioengineering

基　　金：甘肃省自然科学基金资助项目(3ZS042-B25-006)

摘　　要：研究了改性花生壳对Cr6+的吸附作用,并探讨了溶液的pH值、Cr6+初始浓度、吸附时间、温度及改性花生壳用量等因素对Cr6+吸附效果的影响。结果表明,在温度为33℃、改性花生壳用量为1.0 g、20 mg.L-1的Cr6+溶液50mL、溶液的pH值为2.0、振荡吸附时间为120 min的条件下,Cr6+的吸附去除率达到了98.4%。Adsorption of Cr^6＋ by modified peanut shell was studied. The effects of pH value, initial concentration of Cr^6＋,contact time, temperature and modified peanut shell dosage on adsorption had been investigated. The results indicated that modified peanut shell had good adsorption to Cr^6＋. In condition of 33℃, 1.0 g modified peanut shell,50 mE 20 mg·L^-1 Cr^6＋ solution, the initial pH value 2.0 and contact time 120 min,the adsorption rate of Cr^6＋ could be up to 98.4%.

关 键 词：改性花生壳 CR^6+ 吸附 

分 类 号：X78[环境科学与工程—环境工程]