有机过氧化物废水处理催化剂的制备和性能
Zichun Yan1,2,3, Haopeng Ma3, Mingxia Yang3
1Ministry of Education Engineering Research Center of Water Resource Comprehensive Utilization in Cold and Arid Regions, Lanzhou, 730070, China.
Heliyon
|November 11, 2024
概括
一种新的氧化-碳 (CeO2-C) 催化剂有效地使用臭氧氧化处理预处理有机过氧化废水. 最佳条件增强了化学氧气需求去除和生物降解性,显示出有前途的工业应用.
科学领域:
- 环境化学环境化学
- 催化剂是一种催化剂.
- 废水处理 废水处理
背景情况:
- 废水中的有机过氧化物带来了处理方面的挑战.
- 氧化预处理对于有效的废水管理至关重要.
- 开发有效的催化剂是改善氧化过程的关键.
研究的目的:
- 开发和优化氧化碳 (CeO2-C) 催化剂,用于废水氧化.
- 为了研究CeO2-C在过氧化废水中臭氧氧化的催化性能.
- 确定催化剂对废水处理效率的协同效应.
主要方法:
- 使用陶支的化方法制备催化剂.
- 使用SEM,EDS和XRD对催化剂特性进行表征.
- 通过直角实验优化制备参数 (CeO2比率,烧焦温度,时间).
- 通过循环重复使用来评估催化活性和稳定性.
- 对CeO2-C/臭氧工艺进行化学氧气需求 (COD) 和BOD/COD比率改善的评估.
主要成果:
- 最佳的催化剂制备:4%的CeO2质量比,500°C的烧焦温度,5小时的持续时间.
- 经过五个重复使用周期后观察到稳定的催化活性.
- 使用CeO2-C/臭氧,实现了28.11%的COD去除,并将BOD/COD比率从0.093提高到0.152.
- 在CeO2-C催化剂和臭氧氧化之间表现出显著的协同作用.
结论:
- 化方法有效地产生了具有显著催化性能的CeO2-C催化剂.
- CeO2-C/臭氧催化氧化过程对于处理有机过氧化物废水非常有效.
- 开发的催化剂显示了对工业废水处理的有希望的应用前景.
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