改性含铝废渣对废水中镍的吸附机理和动力学影响  

Adsorption mechanism and kinetics of nickel in wastewater by modified aluminum containing waste residue

作　　者：韩晓刚 穆金鑫 顾玲玲 张淳之 陆永生[3] Han Xiaogang;Mu Jinxin;Gu Lingling;Zhang Chunzhi;Lu Yongsheng(Changzhou Qingliu Environmental Protection Technology Co.,Ltd.,Changzhou 213144,China;School of Environmental Science and Engineering,Changzhou University,Changzhou 213164,China;School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200444,China)

机构地区：[1]常州清流环保科技有限公司,江苏常州213144 [2]常州大学环境科学与工程学院,江苏常州213164 [3]上海大学环境与化学工程学院,上海200444

出　　处：《电镀与精饰》2023年第2期14-19,共6页Plating & Finishing

基　　金：常州市科技支撑项目(CE20195020)。

摘　　要：采用Ca(OH)_(2)对含铝废渣(RAS)进行改性,制备改性材料(MAS),对其结构进行表征,并考察其对Ni^(2+)的吸附机理和性能影响。结果表明:Ca(OH)_(2)的引入没有改变RAS的主要官能团,其主要组分为CaTiO_(3)、FeAl_(2)O_(4)和Fe_(3)O_(4),而且改性后的MAS对Ni^(2+)的吸附速率由膜扩散和内扩散相互作用,吸附过程是自发吸热过程。The aluminum containing waste residue(RAS)was modified by Ca(OH)_(2)and the modified material(MAS)was prepared.The structure was characterized and the adsorption mechanism and properties of Ni^(2+)were investigated.The results show that the introduction of Ca(OH)_(2)does not change the main functional groups of RAS,and its main components are CaTiO_(3),FeAl_(2)O_(4)and Fe_(3)O_(4).Moreover,the adsorption rate of modified MAS for Ni^(2+)is interacted by membrane diffusion and internal diffusion,and the adsorption process is a spontaneous endothermic process.

关 键 词：改性 含铝废渣 镍 吸附 废水 

分 类 号：X781.1[环境科学与工程—环境工程]