风化煤吸附水中Cr(Ⅵ)的研究  

Study on the adsorption of the weathered coal for chromium (Ⅵ) in water

作　　者：范福海[1] 郝艳玲[1] 

机构地区：[1]兰州交通大学化工学院,甘肃兰州730070

出　　处：《应用化工》2006年第8期618-620,共3页Applied Chemical Industry

摘　　要：以景泰风化煤作吸附剂，常温下对水溶液中的Cr（Ⅵ）进行了吸附实验研究，探讨了吸附动力学、吸附平衡、pH的影响和吸附机理。结果表明，普通风化煤和活化风化煤对Cr（Ⅵ）有良好的吸附和还原作用，吸附表现出Langmuir特征，在pH≤2．0时吸附率大于98％。The adsorption of Cr（Ⅵ） in water with Jingtai weathered coal at normal temperature, the adsorption kinetic, the adsorption equilibrium,the effect of pH and the mechanism of adsorption were studied. The results indicated that the raw and activation weathered coal had good adsorption and reduction properties to Cr（Ⅵ） and the adsorption isotherm mainly conformed to Langmuir equation, the adsorption rate over 98% when pH ≤2.0.

关 键 词：风化煤 Cr(Ⅵ) 吸附 还原 

分 类 号：X781.1[环境科学与工程—环境工程]