紫外线和Fe2+催化COD去除AO8使用NaOCl作为氧化剂
Tsungom Mulai1, John Elisa Kumar1, Wanshanlang Kharmawphlang1
1Department of Chemistry, North-Eastern Hill University, Shillong, 793 022, India.
Chemosphere
|March 31, 2024
概括
低化 (NaOCl) 有效地消除了酸8的化学氧需求 (COD),特别是在紫外线和铁催化剂. 这项研究证实了NaOClCl的存在.
科学领域:
- 环境化学环境化学
- 先进的氧化过程 先进的氧化过程
- 废水处理 废水处理
背景情况:
- 酸8是一种常见的织染料污染物.
- 有效地消除化学氧气需求 (COD) 对废水处理至关重要.
- 低化 (NaOCl) 被探索为一种潜在的氧化剂.
研究的目的:
- 评估NaOCl作为COD去除酸的氧化剂 8.
- 调查不同催化系统的有效性,包括紫外线和Fe2+.
- 评估pH值和离子对处理过程的影响.
主要方法:
- 测试各种系统:NaOCl,Fe2+/NaOCl,UV/NaOCl,以及Fe2+/NaOCl/UV. 这些系统包括:
- 在酸性,中性和基本条件下运行系统.
- 使用BMG模型分析COD去除效率 (CODeff) 和动力学.
主要成果:
- Fe2+/NaOCl/UV系统显示出最高的COD去除效率.
- 单独NaOCl在90分钟内实现了95%的COD去除.
- 紫外线系统的pH值为中性 (约为7.0),这表明对环境有好处.
- 离子 (F-) 加快了COD去除,特别是在Fe2+/NaOCl/UV系统中.
结论:
- 在先进的氧化过程中,NaOCl是酸8COD去除的强有力的氧化剂.
- Fe2+/NaOCl/UV系统提供了一种高效且对环境无害的处理方法.
- BMG运动模型准确地描述了不同系统的COD去除过程.
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