Arsenic removal in fresh and NOM-preloaded ion exchange packed bed adsorption reactors

被引：22

作者：

Vagliasindi, FGA ^{[1
]}

Benjamin, MM

机构：

[1] Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98105 USA

[2] Univ Salerno, Dept Civil Engn, I-84084 Fisciano, SA, Italy

来源：

WATER SCIENCE AND TECHNOLOGY | 1998年 / 38卷 / 06期

关键词：

arsenic; adsorption; natural organic matter; preloading; arsenic speciation; ion exchange;

D O I：

10.2166/wst.1998.0269

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Arsenic speciation and removal in continuous-flow packed bed adsorption reactors was investigated using a strong base anion exchange resin as the adsorbent. Preloading of the media was investigated passing arsenic-free Lake Washington water through columns packed with the resin prior to feeding influent spiked with arsenic. NOM preloading did not affect the systems, but sulfate adsorbed during the preloading and the subsequent adsorption steps caused chromatographic displacement of the adsorbed arsenic. Significant arsenic speciation changes occurred in the arsenic-spiked feeding solution that need further investigation. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：337 / 343

页数：7

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