改性聚丙烯腈纤维膜处理铅离子废水的研究  

Study on treatment of lead ion wastewater by modified polyacrylonitrile fiber membrane

作　　者：孙墨杰[1] 郭思成 宋伟[2] 刘晓萌 吴琼 王世杰[1] SUN Mo-jie;GUO Si-cheng;SONG Wei;LIU Xiao-meng;WU Qiong;WANG Shi-jie(School of Chemical Engineering,Northeast Electric Power University,Jilin 132012,China;Unit 32683 of the Chinese People’s Liberation Army,Jilin 132012,China;Huadian Electric Power Reseach Institute Co.,Ltd.,Hangzhou 310030,China)

机构地区：[1]东北电力大学化学工程学院,吉林吉林132012 [2]中国人民解放军32683部队,吉林吉林132012 [3]华电电力科学研究院有限公司,浙江杭州310030

出　　处：《应用化工》2020年第11期2828-2832,共5页Applied Chemical Industry

基　　金：吉林省科技发展计划重点科技攻关项目(20170204015SF)。

摘　　要：采用静电纺丝法制得改性聚丙烯腈纳米纤维膜,处理高铅含量废水,考察了铅离子初始浓度、pH、反应温度、反应时间对吸附效果的影响。结果表明,吸附在2 h时基本达到平衡,其吸附容量随着初始浓度的增加而增大,随着pH的增加而增大,随着温度的升高而增大。在最佳吸附条件(C0=100 mg/L、pH=5、50℃、2 h)下,吸附容量达137 mg/g。吸附过程符合Langmiur等温吸附模型,吸附动力学符合准一级吸附模型和准二级吸附模型。这种吸附剂为处理高铅含量废水提供了有效途径,也为静电纺丝法应用到污水处理中提供了新方法。The modified polyacrylonitrile nanofiber membrane was prepared by electro spinning method to treat wastewater with high lead content,the effects of initial concentration of lead ion,pH,reaction temperature and reaction time on the adsorption effect were investigated.The results show that the equilibrium is basically reached at 2 h,and the adsorption capacity increases with the increase of initial concentration,increases with the increase of pH,and increases with the increase of temperature.Under the optimal adsorption conditions(C 0=100 mg/L,pH=5,50℃,2 h),the adsorption capacity reached 137 mg/g.The adsorption process conforms to the Langmiur isotherm adsorption model,and the adsorption kinetics conforms to the quasi-primary adsorption model and quasi-secondary adsorption model.This adsorbent provides an effective way to treat high lead content wastewater,and also provides a new method for the application of electrospinning to wastewater treatment.

关 键 词：改性纤维膜 静电纺丝 铅离子 吸附 

分 类 号：TQ34[化学工程—化纤工业] X703[环境科学与工程—环境工程]