An energy-efficient air-breathing cathode electrocoagulation approach for the treatment of arsenite in aquatic systems

被引：16

作者：

Maitlo, Hubdar Ali ^{[1
]}

Lee, Jechan ^{[2
]}

Park, Joo Yang ^{[1
]}

Kim, Jo-Chun ^{[3
]}

Kim, Ki-Hyun ^{[1
]}

Kim, Jung Hwan ^{[1
]}

机构：

[1] Hanyang Univ, Dept Civil & Environm Engn, 222 Wangsimni Ro, Seoul 04763, South Korea

[2] Ajou Univ, Dept Environm & Safety Engn, 206 Worldcup Ro, Suwon 16499, South Korea

[3] Konkuk Univ, Dept Environm Engn, 120 Neungdong Ro, Seoul 05029, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 73卷

基金：

新加坡国家研究基金会;

关键词：

Air-breathing cathode electrocoagulation; Electrolytes; Flow rate; Applied voltage; Comparison with conventional EC; WASTE-WATER TREATMENT; FUEL-CELL ELECTROCOAGULATION; NATURAL ORGANIC-MATTER; POWER-GENERATION; DRINKING-WATER; REMOVAL; IRON; GROUNDWATER; ARSENATE; ADSORPTION;

D O I：

10.1016/j.jiec.2019.01.026

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An air-breathing cathode electrocoagulation (ACEC) process with a sacrificial aluminum anode was used to treat arsenite (As(III)) from aqueous systems. Its performance was investigated by controlling operational parameters. As(III) removal efficiency of the ACEC increased from 81 to 86% with an increase in NaCl concentration from 10 to 20 mM. Furthermore, we were able to observe the oxidation of As(III) into its corresponding ions as well as the production of an aluminum oxide hydroxide in the form of boehmite. This study describes ACEC as one of the most energy-efficient treatment methods for As(III) removal based on its performance evaluation. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：205 / 213

页数：9