Arsenate removal by zero valent iron: Batch and column tests

被引：57

作者：

Bitema, M. ^{[1
]}

Arditsoglou, A. ^{[1
]}

Tsikouras, E. ^{[1
]}

Voutsa, D. ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Chem, Environm Pollut Control Lab, GR-54124 Thessaloniki, Greece

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 149卷 / 03期

关键词：

arsenic; ions; humic acid; removal; zero valent iron; ARSENITE REMOVAL; ZEROVALENT IRON; DRINKING-WATER; GROUNDWATER; NANOFILTRATION; ADSORPTION; PHOSPHATE;

D O I：

10.1016/j.jhazmat.2007.06.084

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study investigates the efficiency of zero valent iron (ZVI) to remove arsenate from water. Batch experiments were carried out to study the removal kinetics of arsenate under different pH values and in the presence of low and high concentrations of various anions (chloride, carbonate, nitrate, phosphate, sulphate and borate), manganese and dissolved organic matter. Borate and organic matter, particularly at higher concentrations, inhibited the removal of arsenic. Column tests were carried out to investigate the removal of arsenate from tap water under dynamic conditions. The concentrations of arsenic and iron as well as the pH and Eh were measured in treated water. Efficient removal of arsenate was observed resulting at concentrations below the limit of 10 mu g/L in treated waters. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：548 / 552

页数：5

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