改性吸附剂对水中Cu(Ⅱ)的去除效果研究  

Removal of Cu(Ⅱ) in Aqueous Solution by a Modified Adsorbent

作　　者：魏东宁 杜淑雯 罗琳[1] 张嘉超[1] 陈安伟[1] 黄红丽[1] WEI Dong-ning;DU Shu-wen;LUO Lin;ZHANG Jia-chao;CHEN An-wei;HUANG Hong-li(College of Resources and Environment,Hunan Agricultural University,Changsha 410128,Hunan,China;College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310012,Zhejiang,China)

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128 [2]浙江大学环境与资源学院,浙江杭州310012

出　　处：《矿冶工程》2018年第4期94-97,101,共5页Mining and Metallurgical Engineering

基　　金：国家自然科学基金青年科学基金(51108178);湖南农业大学青年科学基金项目(14QN24);国家级大学生创新创业训练计划项目(201510537011)。

摘　　要：以改性有机肥为吸附剂吸附水中Cu(Ⅱ),探究了Cu(Ⅱ)初始浓度、吸附时间、吸附温度、吸附剂用量、转速和溶液初始p H值等因素的影响。结果表明,p H=5、温度30℃、转速150 r/min时,改性吸附剂吸附Cu(Ⅱ)在2 h达到吸附平衡;吸附剂用量为8 g/L时,吸附量最大;吸附过程符合准二级动力学方程,等温吸附曲线符合Langmuir方程,说明其吸附为单层吸附。Test on removal ol Cu(II)in the water by using a modified organic fertilizer as a adsorbent was performed,and influences ol initial concentration ol Cu(II),adsorption time and temperature,adsorbent dosage,rotating speed ol agitator,as well as initial pH value ol solution,on the removal effect were investigated.Results showed that with pH at 5,rotating speed at 150 r/m in lor the agitator,the adsorption ol Cu(II)by such modilied adsorbent at a temperature ol 30℃reached an equilibrium alter 2 h.And the adsorption reached the maximum with the dosage ol adsorbent at 8 g/L.It is lound that the adsorption process lollowed Pseudo-second-order kinetic model and the isothermal adsorption curve conlormed to Langmuir equation,indicating it is a monolayer adsorption.

关 键 词：吸附剂 有机肥 改性 废水处理 重金属 铜离子 

分 类 号：X703[环境科学与工程—环境工程]