Removal of hexavalent chromium anions via polymer enhanced ultrafiltration using a fully ionized polyelectrolyte

被引：13

作者：

Haktanir, Ceren ^{[1
]}

Ozbelge, H. Onder ^{[2
]}

Bicak, Niyazi ^{[3
]}

Yilmaz, Levent ^{[2
]}

机构：

[1] Gazi Univ, Dept Adv Technol, Ankara, Turkey

[2] Middle East Tech Univ, Dept Chem Engn, Ankara, Turkey

[3] Istanbul Tech Univ, Dept Chem, Istanbul, Turkey

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2017年 / 52卷 / 15期

关键词：

Hexavalent chromium removal; membrane separation techniques; polyelectrolyte; ultrafiltration; AQUEOUS-SOLUTIONS; BORON REMOVAL; HEAVY-METALS; CR(VI); WATER; MEMBRANE; SEPARATION; IONS; COMPLEXATION; PURIFICATION;

D O I：

10.1080/01496395.2017.1343351

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fully ionized polyelectrolyte was synthesized for Cr(VI) removal from aqueous solutions by continuous polymer enhanced ultrafiltration (PEUF). Effect of operating parameters such as pH, loading, polymer, and competing ion concentrations were examined. Highest Cr(VI) retention was obtained at a loading of 0.01 at pH 4. Increasing both polymer and chromate concentrations at a fixed loading of 0.01 decreased the retention which demonstrated the effect of crowding. In the presence of competing anions such as chloride and sulfate, Cr(VI) retention decreased for all of the pH values studied. Even at high competing anion concentrations, significant retentions of Cr (VI) were obtained.

引用

页码：2487 / 2497

页数：11

共 57 条

[1] Removal of zinc from aqueous solutions using sea nodule residue [J].