Removal of Cu(II) and Cu(I) from acidic copper etching wastewater by NH3 & BULL;H2O decomplexation coupling with O-2 oxidation
文献类型：期刊论文
| 作者 | Dou, Wenyue; Peng, Xianjia ; Kong, Linghao; Hu, Xingyun
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| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2022-03-15 |
| 卷号 | 285期号:0页码:120348 |
| 关键词 | PRINTED-CIRCUIT BOARD SOLVENT-EXTRACTION REGENERATION CHLORIDE RECOVERY DISPOSAL TIN |
| ISSN号 | 1383-5866 |
| 英文摘要 | The lack of developed method for the treatment of acidic copper etching wastewater has always been a tricky problem in the printed circuit board (PCB) industries. In this study, an improved approach of decomplexation & neutralization & precipitation by NH3 & BULL;H2O coupling with oxidation by O-2 for the removal of Cu(II) and Cu(I) from acidic copper etching wastewater was explored. After the wastewater being treated using NH3 & BULL;H2O with the constant addition of O-2 at 30 ? under the v(NH3 & BULL;H2O):v(waste) of 0.35, 96.9% of Cut was effectively removed in the form of Cu-2(OH)(3)Cl precipitates. The removal mechanisms for Cu(II) are as follows. (1) NH3 & BULL;H2O reacts with H+, leading to the enhancement in the pH value. (2) Cu(II)-Cl(-I) complex reacts with NH3 & BULL;H2O to produce Cu-2(OH)(3)Cl. For Cu(I), the removal mechanisms were proposed as follows. (1) The stable CuCl(4)(3-& nbsp;)is de-complexed by NH3 & BULL;H2O to produce Cu(NH3)(4+). (2) Then, Cu(NH3)(4+) is oxidized by O-2 to produce Cu (NH3)(4)(2+). (3) Cu(NH3)(4)(2+) reacts with Cl(-I) and H2O to produce Cu-2(OH)(3)Cl. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47723]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 通讯作者 | Dou, Wenyue |
| 作者单位 | 1.Xuzhou Univ Technol, Sch Environm Engn, Jiangsu Key Lab Ind Pollut Control & Resource Reu, Xuzhou 221018, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing Key Lab Ind Wastewater Treatment & Resour, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dou, Wenyue,Peng, Xianjia,Kong, Linghao,et al. Removal of Cu(II) and Cu(I) from acidic copper etching wastewater by NH3 & BULL;H2O decomplexation coupling with O-2 oxidation[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,285(0):120348. |
| APA | Dou, Wenyue,Peng, Xianjia,Kong, Linghao,&Hu, Xingyun.(2022).Removal of Cu(II) and Cu(I) from acidic copper etching wastewater by NH3 & BULL;H2O decomplexation coupling with O-2 oxidation.SEPARATION AND PURIFICATION TECHNOLOGY,285(0),120348. |
| MLA | Dou, Wenyue,et al."Removal of Cu(II) and Cu(I) from acidic copper etching wastewater by NH3 & BULL;H2O decomplexation coupling with O-2 oxidation".SEPARATION AND PURIFICATION TECHNOLOGY 285.0(2022):120348. |
入库方式： OAI收割
来源：生态环境研究中心
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