中南大学学报（自然科学版）2011，Vol.42Issue(10)：3213-3219,7.
蒙脱石对乙基钾黄药-铅复合污染体系的吸附平衡与动力学
Adsorption equilibrium and kinetics of potassium ethyl xanthate-lead combined pollutants on montmorillonite
摘要
Abstract
Adsorption equilibrium and kinetics of potassium ethyl xanthate-lead combined pollutants to montmorillonite by static adsorption experiments were investigated to reveal environmental behavior of xanthate and heavy metals in a combined pollution system. The results show that adsorption of potassium ethyl xanthate on montmorillonite is slight. Adsorption of Pb2+ to montmorillonite is seriously affected in the presence of potassium ethyl xanthate owing to a suspended product of the reaction between Pb2+ and potassium ethyl xanthate, adsorption rate constant increases from 10.40 g/(mg-min) to 54.76 g/(mg-min), while equilibrium adsorption capacity (qe) decreases from 9.80 mg/g to 4.27 mg/g. The impact degree improves with the increase of potassium ethyl xanthate concentration, but reduces with the increase of Pb2+ concentration, pH, and montmorillonite dosage. The findings may serve as an important reference for the control of xanthate and heavy metals combined pollution.关键词
蒙脱石/黄药/铅/污染控制/吸附等温线/动力学Key words
montmorillonite/ potassium ethyl xanthate/ lead/ pollution control/ adsorption isotherms/ kinetics分类
资源环境引用本文复制引用
郝艳,吴小莲,莫测辉,李彦文,黄献培,屈相龙,向垒,梁嘉华..蒙脱石对乙基钾黄药-铅复合污染体系的吸附平衡与动力学[J].中南大学学报（自然科学版）,2011,42(10):3213-3219,7.基金项目
教育部博士点基金资助项目(200805590005) （200805590005）
国家自然科学基金资助项目(41071211) （41071211）
中央高校基本科研业务费专项资金项目(21610410,21609709) （21610410,21609709）
