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在广泛的pH条件下,通过臭氧微气泡将聚乙烯醇矿化
Masayoshi Takahashi1, Ryo Nakatsuka2, Shuzo Kutsuna3
1New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan.
Langmuir : the ACS journal of surfaces and colloids
|October 18, 2023
概括
臭氧微泡处理有效地在废水中矿化聚乙烯醇 (PVA),这是一个持久污染物. 这种先进的氧化过程消除了几乎所有的有机碳,为环境修复提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
- 水处理技术 水处理技术
背景情况:
- 聚乙醇 (PVA) 是一种强硬的污染物,对生态系统和人类健康构成风险.
- 有效的处理方法对于处理工业废水中的PVA至关重要.
- 传统方法可能难以完全矿化这些持久有机化合物.
研究的目的:
- 评估臭氧微泡处理作为PVA矿化的一种物理化学方法.
- 为了比较臭氧微气泡与普通臭氧泡对PVA降解的有效性.
- 用臭氧微泡来评估pH对PVA矿化效率的影响.
主要方法:
- 在PVA溶液中使用混合微气泡发生器生成臭氧微气泡.
- 在一系列的pH条件 (2,7,10) 中进行了实验.
- 测量了总有机碳 (TOC) 减少,以量化PVA矿化效率.
- 通常的臭氧泡被用作对照对比.
主要成果:
- 用臭氧微气泡处理实现了PVA的几乎完全矿化 (TOC降至~0%).
- 在所有测试的pH条件 (2,7,10) 中都观察到这种高效率.
- 通常的臭氧泡效果显著下降,在pH 2和pH 7下留下约30%的TOC.
结论:
- 臭氧微泡技术是一种高效的方法,用于在水溶液中矿化聚乙烯醇.
- 该系统在各种pH值水平上表现出强大的性能,表明其多功能性.
- 这项技术显示出先进的物理化学废水处理应用的巨大潜力.
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