增强的过素反应与氧化物调制,用于高效净化具有挑战性的废水:比较性能,经济评估和试点规模实施
Yi-Shuo Zhang1, Xin-Jia Chen1, Xin-Tong Huang1
1Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, China.
Water research
|December 31, 2024
概括
这项研究引入了一种新的氧化 (ZnO) 调节的过子系统,用于先进的水处理. 改进后的系统克服了pH值的限制,显著提高了污染物去除和氧化剂效率,以有效地治理废水.
科学领域:
- 环境化学环境化学
- 先进的氧化过程 先进的氧化过程
- 水处理技术 水处理技术
背景情况:
- 传统的过素 (O3/H2O2或O3/PMS) 处理水的过程面临着pH范围和氧化剂效率的限制.
- 像阿特拉这样的缺电子污染物很难用传统方法去除.
研究的目的:
- 开发一种新型的氧化物 (ZnO) 调节的氧系统,以克服pH限制并提高氧化剂利用率.
- 提高废水处理中缺电子污染物的去除效率.
主要方法:
- 研究了一种使用O3/H2O2和O3/PMS的ZnO调节过子系统.
- 分析了基因生成 (基和硫酸盐基因) 和臭氧利用效率.
- 采用了全面的分析技术,以阐明界面相互作用和识别活跃站点.
- 进行了干扰测试,试点废水处理和生物毒性评估.
主要成果:
- 在酸性条件下 (pH=5.8) 使用ZnO调节的O3/H2O2 (O3/PMS) 实现了52.4% (64.9%) 的阿特拉辛去除效率增加.
- 促进了基 (•OH) 和硫酸盐 (SO4•−) 基的产生,增强了氧化剂的利用.
- 确定了氧化剂部位作为主要活性部位,其中ZnO作为电子受体.
- 在试点规模的焦化废水中证明了70%以上的矿物化,具有显著的排毒潜力.
结论:
- 用ZnO调节的过子系统为复杂的废水处理提供了突破性的解决方案,克服了传统的pH限制.
- 该系统表现出强大的降解能力,稳定性和排毒潜力,性能优于传统技术.
- 用ZnO催化过子过程显示出实用和高效的废水处理应用的重大前景.
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