Purification of galvanic sewage from metals by electrodialysis

被引：10

作者：

Klischenko, R ^{[1
]}

Kornilovich, B ^{[1
]}

Chebotaryova, R ^{[1
]}

Linkov, V ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, AV Dumanskii Inst Colloid & Water Chem, UA-252143 Kiev, Ukraine

来源：

DESALINATION | 1999年 / 126卷 / 1-3期

关键词：

desalination; electrodialysis; zinc removal;

D O I：

10.1016/S0011-9164(99)00169-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The electrodialysis process of solutions containing a salt mixture (Na2SO4 and ZnSO4, with concentrations of 0.05 N each) has been studied. The electric current density ranged from 5 to 25 mA/cm(2). The solution was fed at a rate of 0.01 cm/s. The electromigration flux of zinc is approximately twice lower than that of sodium ions. The transport of hydrogen ions does not exceed 20% of the overall electric current, and it comes to pass as a zincate-anion. The dependence of the electromigration transport of zinc ions vs. the electric current density has a maximum in the range 10-15 mA/cm(2). In the presence of an ion-exchange fiber in the desalination chamber, the residual zinc concentration in the dialyzate does not exceed 2-3 mg/l.

引用

页码：159 / 162

页数：4