Efficient Cu removal from CuEDTA complex-containing wastewater using electrochemically controlled sacrificial iron anode
學年 109
學期 2
出版（發表）日期 2021-02-01
作品名稱 Efficient Cu removal from CuEDTA complex-containing wastewater using electrochemically controlled sacrificial iron anode
作品名稱（其他語言）
著者 Vinh Ya; Natacha Martin; Yi-Hsuan Chou; Shiao-Shing Chen; Kwang-Ho Choo; Vincenzo Naddeo; Ngoc Chung Le; Chi-Wang Li
單位
出版者
著錄名稱、卷期、頁數 Chemosphere 264, 128573
摘要 In this study, an electro-replacement/precipitation/deposition/direct reduction (ERPDD) process with scrap iron packed in a Ti mesh cage as a sacrificial anode was investigated for the treatment of wastewater containing CuEDTA complexes. The ERPDD mechanisms were responsible for the removal of Cu from CuEDTA complexes and were verified by a series of experiments using either iron or carbon plates as anodes for the Cu-containing solutions with and without EDTA. A complete Cu removal was achieved with electrical current density applied (1.18-2.36 mA/cm2), whereas only 60% of the Cu was removed without electricity. Dissolved oxygen (DO) was found to have a significant impact on Cu removal. Aeration reduced Cu removal (i.e., only 60% of the Cu was removed), whereas complete Cu removal was achieved with negligible DO concentration under mechanical mixing and N2 purging conditions. Compared to chemical replacement/precipitation (CRP) process, the ERPDD was able to save approximately 60-75% of the total operational costs during the treatment of CuEDTA-containing wastewater, due to the electrochemically controlled dosing of inexpensive sacrificial scrap iron and additional removal mechanisms not found in the CRP process.
關鍵字 Copper removal;Scrap iron;Electro-replacement;Electro-deposition;Direct reduction
語言 en_US
ISSN 1879-1298
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Chi-Wang Li
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/119362 )

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