摘要
研究以改性煤基活性炭为吸附剂对Cr(VI)进行静态吸附试验,探讨了吸附时间、溶液pH、吸附剂质量、Cr(VI)起始质量浓度对吸附剂吸附性能的影响.试验表明,煤基活性炭经改性后,对Cr(VI)具有良好的吸附性能;在室温时酸性条件下能快速达到吸附平衡,Cr(VI)去除率可达99%以上.改性煤基活性炭对Cr(VI)吸附效率明显提高.
The paper described the study of the adsorption of Cr（Ⅵ） using the modified coal-based activated carbon as adsorbent. The effects of adsorption time, pH value, adsorbent dosage, and concentration of Cr（Ⅵ） on adsorption properties were systematically investigated. The experiment results showed that the modified coal-based activated carbon has better adsorption behavior. At room temperature, the adsorption of Cr（Ⅵ） on modified coal-based activated carbon reaches equilibrium quickly under acid condition. The removal of Cr（Ⅵ） reaches above 99%. The adsorption efficiency can be improved obviously.
出处
《宁夏工程技术》
CAS
2006年第4期420-422,共3页
Ningxia Engineering Technology
基金
国家自然科学基金资助项目(20441002)
宁夏自然科学基金资助项目(2004-ZD01)
关键词
煤基活性炭
改性
吸附
Cr(Ⅵ)
coal-based activated carbon
modification
adsorption
Cr（Ⅵ）
作者简介
张霞（1969-），女。讲师，硕士，主要从事有机合成与分析研究．
通讯联系人：刘万毅．Email：liuwy@nxu．edu．cn．
