Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 73, Issue -, Pages 205-213Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2019.01.026
Keywords
Air-breathing cathode electrocoagulation; Electrolytes; Flow rate; Applied voltage; Comparison with conventional EC
Funding
- R&D Center for Green Patrol Technologies through the R&D for Global Top Environmental Technologies - Ministry of Environment [MOE 2018001850001]
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2016R1E1A1A01940995, 2016R1A2B4009344]
- National Research Foundation of Korea [2016R1A2B4009344] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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