通过废物进行废弃物控制:一种新的方法用于从畜牧废水中去除抗生素和重复使用金属,使用用酸增强的CaO2/Cu2系统
Rongfa Zhang1, Song Xia1, Wenyue Yu1
1School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
Journal of hazardous materials
|August 24, 2024
概括
这项研究提出了一种新的方法,用于从牲畜废水中去除抗生素和铜离子,使用in-situ铜利用. CP/Cu (II) /甲酸系统显著增强了抗生素降解,同时也消除了铜离子.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 催化剂是一种催化剂.
背景情况:
- 牲畜废水通常含有抗生素和重金属离子的混合物,如Cu (II).
- 同时去除这些共存的污染物是具有挑战性的,但对于环境保护至关重要.
研究的目的:
- 开发一种新的策略,同时从牲畜废水中去除抗生素和Cu (II).
- 调查Cu的现场利用,以激活CP用于污染物降解.
- 评估 Askorbic 酸 (AA) 在增强抗生素降解中的作用及其对 Cu (II) 除去的影响.
主要方法:
- 使用CP/Cu (II) 和CP/Cu (II) /酸 (AA) 系统去除污染物.
- 量化去除 (FF) 和离子的速度.
- 使用电子磁共振 (EPR) 检测到反应性氧物种 (ROS) 和中间物种.
- 使用毒性分析软件 (T.E.S.T.) 分析了FF的降解产物和降解途径.
主要成果:
- 与CP/Cu (II) /AA系统相比,CP/Cu (II) /AA系统显示了6.9倍高的FF去除率.
- CP/Cu(II) /AA系统在从真正的牲畜废水中去除抗生素方面表现出有效性.
- 虽然AA增强了FF降解,但它抑制了离子去除,CP/Cu(II) 和CP/Cu(II) /AA系统分别实现了54.5%和15.7%的离子去除.
- 确定HO•,O2•−,Cu(III) 和C-R作为关键的反应物种,HO•是FF降解的主要贡献者.
结论:
- 在Cu ((II) 的现场利用可以有效地激活CP,在没有复杂的催化剂的情况下,在牲畜废水中同时进行抗生素和Cu离子去除.
- 亚酸在加速HO•生产和Cu (I) /Cu (II) /Cu (III) 循环中发挥着至关重要的作用,从而增强了抗生素的降解.
- 拟议的方法为处理复杂的畜牧废水提供了一种可行和高效的方法.
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