Removal of Cu (II) From Aqueous Solution by Rotating Disk Shear Enhanced Complexation-Ultrafiltration

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Tang, Shuyun^1 ; Qiu, Yunren^1

School of Chemistry and Chemical Engineering, Central South University, Changsha

410083, China^1

关键词: Complexation-ultrafiltration;    Mass ratio;    Permeate flux;    Polyacrylic acids;    Removal rate;    Rotating speed;    Solution pH;    Suitable conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/3/032129/pdf
DOI  :  10.1088/1755-1315/170/3/032129

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The polyacrylic acid sodium (PAAS) has been applied into the removal of Cu (II) from aqueous solutions by a rotating disk shear enhanced complexation-ultrafiltration process. As important factors, solution pH and polymer/metal mass ratio (P/M) on the rejection of Cu(II) have been investigated, the removal rate of Cu (II) can reach 99.6% at suitable condition, pH=6.0, P/M=25. The permeate flux increases from 38.5 to 47.2 L m•2kPa•1h•1 with the increase of rotating speed from 0 to 3000 rpm. However, the rejections of Cu (II) decrease sharply when the rotating speeds are more than 700, 900, 1000 rpm at pH values 4.0, 5.0, 6.0, respectively. Thus, only at suitable rotating speed, can high permeate flux and removal rate be obtained for shear enhanced complexation-ultrafiltration.