同时确定过氧化硫酸盐和双硫酸盐度,使用灭剂辅助的度计
Xinghong Wu1, Jun Deng1, Jiawei Ye1
1College of the Environment & Ecology, Xiamen University, Xiamen 361102, China.
Journal of environmental sciences (China)
|March 6, 2025
概括
一种新的灭计量方法准确地测量了水中的过氧二硫酸盐 (PDS) 和二硫酸盐 (HSO3-) 度. 这一创新有助于优化减少剂增强的芬顿工艺,以有效去除污染物.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 水处理 处理水的方法
背景情况:
- 芬顿/芬顿类反应对有机污染物的分解是有效的,通常由用于Fe2+再生的减少剂增强.
- 之前的研究集中在基基 (•OH) 上,由于测量难度,忽视了同时发生的氧化剂和减少剂演变.
- 同时确定氧化剂如过氧化二硫酸盐 (PDS) 和减少剂如二硫酸盐 (HSO3-) 对于过程优化至关重要.
研究的目的:
- 开发和验证一种创新的分析方法,用于同时确定过氧二硫酸盐 (PDS) 和二硫酸盐 (HSO3-) 度.
- 为了能够精确监测芬顿/芬顿类反应系统中氧化剂和减少剂水平.
- 为了促进最佳化化学剂量和性能评估在净化水.
主要方法:
- 开发了一种灭-度法,使用过氧硫酸盐 (PMS) 灭HSO3-.
- 用 आयो多米谱光测量同时确定PMS和PDS度.
- 准确的HSO3-度是使用精确的石化学关系来计算的.
主要成果:
- 开发的方法实现了高精度,线性拟合产生了相关系数 (R2) > 0.99.
- 该方法在各种pH值和各种杂质离子的存在下显示出适应性.
- 精确的度测量在真实废水样本中得到证实.
结论:
- 灭-度法提供了一个简单,快速和环保的分析策略,用于确定PDS和HSO3-.
- 这种方法允许精心监测水处理中的化学品使用情况.
- 它促进了优化剂量策略,并加强了对减少剂增强的芬顿/芬顿式净水系统的评估.
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