通过一种新的基于C@ZVAl-PS的序列还原-氧化过程,增强了尼托芬醇的矿化
Xin Li1, Yang Li2, Shiying Yang3
1Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China.
The Science of the total environment
|August 7, 2024
概括
这项研究引入了一种新型的碳改性零价值和硫酸盐系统,有效地从废水中去除有毒的酸和氨基. 该过程有效降解污染物,减少化学氧气需求,显示出对工业应用的希望.
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:
- 尼托醇 (NPs) 是广泛使用但持久的污染物.
- NP被减少到有毒的氨基醇 (AP),需要进一步处理.
- 现有的方法难以完全删除NP和AP.
研究的目的:
- 开发一个连续的降解-氧化系统,以全面去除NP和AP.
- 研究碳改性零价值 (C@ZVAl) 和硫酸盐 (PS) 对污染物降解的有效性.
- 优化该过程,以提高矿化和在真实废水中应用.
主要方法:
- 使用了与C@ZVAl和PS的顺序降解氧化系统.
- 使用扫描电子显微镜 (SEM) 和X射线光电谱 (XPS) 进行材料特征.
- 在模拟和实际废水中测试了系统对p-nitrophenol (PNP) 和dinitrodiazophenol (DDNP) 的有效性.
主要成果:
- 实现了PNP完全减少为p-aminophenol (PAP) 和超过98.0%的PAP氧化.
- 证明了95.9%的化学氧气需求 (COD) 的去除率.
- 在未经处理的爆炸性废水中成功地矿化了丁二二醇 (DDNP),展示了实际应用.
结论:
- C@ZVAl-PS系统提供了一种高效的降解耐火替代有机污染物的方法.
- 优化PS添加的时间增强了减少和随后的氧化,导致更好的矿化.
- 这种连续的降解-氧化过程显示出处理具有挑战性的工业废水的巨大潜力.
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