Photo-assisted electrolytic decomplexation of Cu-EDTA and Cu recovery enhanced by H2O2 and electro-generated active chlorine
文献类型：期刊论文
| 作者 | Zeng, Huabin; Tian, Shichao; Liu, Huifang; Chai, Buyu; Zhao, Xu |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 301期号:0页码:371-379 |
| 关键词 | Photo-assisted electrolysis UV/H2O2 Electrochlorination Decomplexation Cu recovery |
| 英文摘要 | The performance of Cu-EDTA decomplexation and copper recovery by photo-assisted electrolysis (UPE) process using TiO2/Ti as anode and stainless-steel as cathode was explored by adding H2O2/Cl-. The Cu-EDTA decomplexation and Cu recovery were well fitted with a pseudo-first-order reaction model. The results indicated that with the addition of H2O2 into the UPE process (H2O2-UPE process), the kinetic constant of Cu-EDTA decomplexation was increased from 0.0677 min(-1) to 0.0880 min(-1), and the kinetic constant of Cu recovery was increased from 0.0607 min(-1) to 0.0749 min(-1). Similar enhancement was observed by adding Cl- into the UPE process (EC-UPE process), where the kinetic constant of Cu-EDTA decomplexation was increased from 0.0272 min(-1) to 0.0632 min(-1). Correspondingly, the kinetic constant of Cu recovery was increased from 0.0249 mine to 0.0565 min(-1). In the H2O2-UPE process, the efficiency of Cu-EDTA decomplexation and Cu recovery was optimal at the initial solution pH of 2.5-3.5; in the EC-UPE process, an optimum current density of 1.00 mA/cm(2) was obtained. Intermediates were detected in H2O2-UPE process and a decomplexation pathway was proposed. A different degradation pathway was concluded in the EC-UPE process. (C) 2016 Published by Elsevier B.V. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36067]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zeng, Huabin,Tian, Shichao,Liu, Huifang,et al. Photo-assisted electrolytic decomplexation of Cu-EDTA and Cu recovery enhanced by H2O2 and electro-generated active chlorine[J]. CHEMICAL ENGINEERING JOURNAL,2016,301(0):371-379. |
| APA | Zeng, Huabin,Tian, Shichao,Liu, Huifang,Chai, Buyu,&Zhao, Xu.(2016).Photo-assisted electrolytic decomplexation of Cu-EDTA and Cu recovery enhanced by H2O2 and electro-generated active chlorine.CHEMICAL ENGINEERING JOURNAL,301(0),371-379. |
| MLA | Zeng, Huabin,et al."Photo-assisted electrolytic decomplexation of Cu-EDTA and Cu recovery enhanced by H2O2 and electro-generated active chlorine".CHEMICAL ENGINEERING JOURNAL 301.0(2016):371-379. |
入库方式： OAI收割
来源：生态环境研究中心
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