从无电流废水中与金属铜和甲基甲同时回收铜和EDTA联体
Yi Mu1, Xinlu Tong1, Yingying Guan1
1Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang 330063, China.
使用一种新的方法从工业废水中回收有价值的铜和EDTA. 这种方法将危险的合金属废物转化为可重复使用的资源,提供了一个环保的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 传统的处理铜 (II) - 乙烯二胺四酸 (Cu (II) - EDTA) 酸在无电流污水中产生危险废物和污染物.
- 现有的方法无法最大限度地从这些废水中回收资源.
研究的目的:
- 开发一种简单的策略,同时从Cu (II) -EDTA无电气废水中回收铜 (Cu) 和乙烯基二胺三酸 (EDTA) 连接物.
- 将危险的合金属废物转化为有价值的资源.
主要方法:
- 使用商用金属铜 (Cu) 激活甲,一个辅助污染物.
- 在现场生成基 (•H) 以解复 Cu{2}-EDTA.
- 将Cu (II) 降解为金属Cu,并释放EDTA连接体.
主要成果:
- 在没有进一步处理的情况下,从真实Cu (~2000 mg/L) -EDTA废水中恢复了99.9%的高纯度铜粉.
- 使用沉酸化后处理程序回收了99.2%的EDTA.
- 产生每72.38美元的净利,证明了经济可行性.
结论:
- 拟议的"污染-治理-污染"方法提供了一种有效和有利可图的方法,用于从Cu (II) -EDTA无电气废水中回收资源.
- 该战略通过将危险废物转化为有价值的材料,提供了一个环保的解决方案.
- 该方法有效地解决了与有毒合金属废物处理相关的挑战.
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