在合成和复杂的水环境中,对 Bisphenol B 的电化学氧化进行创新方法
Elizabeth Del Rosario Salas-Sandoval1, Tzayam Pérez-Segura2, Sergi Garcia-Segura3
1Departamento de Ingeniería Química, DCNE, Universidad de Guanajuato, Noria Alta s/n, Noria Alta, Guanajuato 36050, Mexico; School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, United States.
The Science of the total environment
|October 11, 2024
概括
电化学氧化 (EO) 有效地从水中去除双B (BPB). 添加的钻石阳极提供优越的降解,显示处理复杂的水矩阵和减少环境BPB污染的承诺.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 电化学过程 电化学过程
背景情况:
- 双B (BPB) 在水环境中越来越多地被检测到,造成潜在的危险.
- 目前用于去除BPB的方法有限,需要先进的治疗解决方案.
- BPB是双A (BPA) 的常见替代品,引发了人们对其环境持久性的担忧.
研究的目的:
- 研究电化学氧化 (EO) 对降解BPB及其副产品的有效性.
- 为了优化EO参数,包括阳极材料,电流密度,pH和初始BPB度.
- 评估EO在各种现实世界水矩阵中的性能,并了解矩阵效应.
主要方法:
- 在受控的实验室条件下,电化学氧化 (EO) 应用于BPB溶液.
- 用添加钻石 (BDD) 和氧化电极进行了比较,以测量BPB降解效率.
- 确定了动力分析 (伪第一阶) 和矿物化.
- 在饮用水,自来水,模拟废水和合成尿液中评估了EO的性能.
主要成果:
- 在BPB降解之后,出现了伪第一阶动力学.
- 与氧化电极相比,BDD阳极的速率常数是27倍以上.
- 在180分钟内,BDD实现了81.8%的BPB矿化,留下短链碳酸.
- 电生成氧化剂 (基,硫酸盐基,活性) 在复杂矩阵中增强了降解.
- 能源消耗在2.28至5.32千瓦时/立方米之间,取决于水矩阵.
结论:
- 电化学氧化是一种高效的技术,用于从各种水类中去除BPB.
- 对于BPB降解,BDD阳极优越,提供高效的矿化.
- 矩阵组成显著影响EO效率和能源消耗.
- 在环境水系统中,EO为减轻BPB污染提供了一个有希望的解决方案.
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