水溶性聚合改性微晶纤维素对Cu^(2+)的吸附性能试验研究  

Adsorption Properties of Water Soluble Polymerized Modified Microcrystalline Cellulose for Cu^(2+)in Wasterwater

作　　者：刘军 代志会 傅金祥[1] 李旺育 LIU Jun;DAI Zhihui;FU Jinxiang;LI Wangyu(School of Municipal and Environmental Engineering,Shenyang Jianzhu Universtiy,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《湿法冶金》2021年第2期129-134,共6页Hydrometallurgy of China

基　　金：国家土壤污染防治科技重大专项(2018YFC1801203)。

摘　　要：研究了以微晶纤维素(MCC)和丙烯酰胺(AM)为单体,过硫酸钾为引发剂,N,N’-亚甲基双丙烯酰胺(MBAM)为交联剂,制备高分子材料P(MCC-AM),并从废水中吸附Cu^(2+)。考察了溶液pH、反应温度和时间对P(MCC-AM)吸附Cu^(2+)的影响,以及吸附等温线和吸附动力学。结果表明:所制备P(MCC-AM)是一种表面有多孔结构的高分子材料,在吸附温度25℃、溶液pH=7、吸附时间60 min条件下对Cu^(2+)有较好吸附效果,吸附反应符合准二级动力学模型及Freundlich等温吸附模型,可用于含Cu^(2+)废水的综合治理。Using microcrystalline cellulose(MCC)and acrylamide(AM)as monomers,potassium persulfate as initiator,N,N-methylene double acrylamide(MBAM)as crosslinking agent,polymer P(MCC-AM)which can be used to adsorb Cu^(2+)in wastewater was prepared.The effects of pH,temperature and adsorption time on the adsorption of P(MCC-AM)for Cu^(2+),adsorption isotherm and adsorption kinetics were investigated.The results show that P(MCC-AM)is a kind of polymer material with porous surface structure.Under the conditions of 25℃,pH=7 and adsorption time of 60 min,the adsorption reaction is in line with the quasi-second-order kinetic model and the Freundlich isothermal adsorption model.which can be used for the comprehensive treatment of wastewater containing Cu^(2+).

关 键 词：微晶纤维素 改性 Cu^(2+) 吸附 

分 类 号：X703[环境科学与工程—环境工程] TQ424[化学工程]