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通过混合方法制备的基臭氧催化剂:特性,性能和碳排放

Yingming Hu¹, Panxin Wang², Yin Yu²

¹State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Research Center of Environmental Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Environmental Technology Engineering Co Ltd., Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.

|December 4, 2023

概括

制备-铜-/氧化 (MCCA) 催化剂的混合方法为水处理提供了更绿色,低碳的替代方案. 这种方法可以显著减少碳排放,同时保持在石油化学二次废水中去除污染物的高效率.

科学领域:

环境科学与工程环境科学与工程
催化和表面化学
水处理技术水处理技术

背景情况:

绿色和低碳发展对于推进水处理技术至关重要.
混合方法的催化剂能降低能耗和二氧化碳排放,但通常缺乏催化效率和稳定性.
由于其复杂的污染物组成,石化二次废水 (PCSE) 在水处理中存在挑战.

研究的目的:

优化混合方法,以制备Mn-Cu-Ce/Al2O3 (MCCA) 催化剂,以提高性能.
评估MCCA催化剂在治疗PCSE中的催化效率和碳足迹.
在催化剂性能和环境影响方面,比较混合方法与浸方法.

主要方法:

使用混合方法,优化了Mn-Cu-Ce/Al2O3 (MCCA) 催化剂的制备条件和成分比.
使用MCCA处理石化二次废水 (PCSE) 的催化臭氧化实验.
在催化剂制备过程中分析污染物去除效率 (TOC,COD),臭氧分解率,活性物种识别和碳排放.

主要成果:

优化的MCCA催化剂在PCSE中实现了高去除TOC (43.04%) 和COD (53.18%) 的效率,与浸方法相比.
MCCA显著增强了臭氧分解 (10x),并产生了关键活性物种 (•OH,1O),表面吸附点和基团对污染物降解至关重要.
与浸方法 (949.67公斤/) 相比,混合方法的碳排放量 (418.68公斤/) 显著降低,仅占浸方法的44%.

结论:

优化的混合方法为制备用于水处理的MCCA催化剂提供了一条绿色,干净和高效的途径.
通过混合方法制备的MCCA催化剂在去除污染物方面表现出具有竞争力的性能,同时提供显著的环境效益.
该研究支持混合方法作为一种更可持续的方法,与全球低碳转型目标保持一致.

关键词:

催化臭氧化催化臭氧化这是一个低碳的低碳.混合方法混合方法石化二次废水是石油化学中的二次废水.

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