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基于硫酸盐的液相氧化,用于处理多废气流 - - 参数研究

Ana S P Alves¹, Carmen S D Rodrigues¹, Luís M Madeira¹

¹LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.

|April 16, 2025

概括

这项研究引入了一种新的方法,用于使用液相先进氧化过程去除多气体. 优化的条件显著增强了二烯的转移和降解,优于以前的方法.

科学领域:

环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

烯等挥发性有机化合物对环境和健康构成风险.
传统的气处理方法往往面临效率和成本方面的局限性.

研究的目的:

通过基于硫酸盐的液相先进氧化工艺 (AOP) 研究气体二烯的降解和矿化.
为了优化操作参数,包括催化剂度,氧化剂剂量和初始pH值,以增强烯去除.
为了比较这种AOP的有效性与现有的多烯降解技术.

主要方法:

使用泡柱反应堆用于液相AOP.
使用过渡金属离子 (Fe2+) 和pH调整,激活过硫酸盐 (S₂O₈2-) 的使用.
进行了参数研究,改变了Fe2+度 (0-0.27 g/L),S2-O8剂量 (0.80-2.40 g/L) 和初始pH (2.0-6.8).

主要成果:

在0.20 g/L Fe2+,1.70 g/L S2O2-8,pH值3.0的条件下达到最佳性能.
在最佳条件下,托洛向液相转移达到7.8×10−2mol/L,与其水溶性相比增加了13倍.
硫酸盐基在酸性条件下比基基更有助于氧化.
托卢转移量几乎是类似研究中芬顿反应报告的两倍.

结论:

开发的基于酸硫酸盐的AOP有效降解来自气流中的多烯.
优化条件显著增强多质量转移和随后的基因驱动降解.
这种方法为处理受托污染的气体废水提供了一个有希望的,更有效的替代方案.

关键词:

先进的氧化过程具有先进的氧化过程.气泡柱反应堆中的气泡柱反应堆.气体废水是气体废水.基于硫酸盐的硫酸盐是一种挥发性有机化合物挥发性有机化合物

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