连续循环再循环电化学系统与低成本紫外线LED相结合的协同效应对格兰氏阴性细菌的失活作用
Paula Andrea Espinosa-Barrera1,2, Efraím A Serna-Galvis3,4, Ricardo Antonio Torres-Palma3
1Grupo de Investigación en Ciencias Biológicas y Químicas, Facultad de Ciencias, Universidad Antonio Nariño, Bogotá D.C, Colombia.
Environmental science and pollution research international
|December 21, 2024
概括
一个与UV-LED相结合的新型电化学系统迅速使水中的有害细菌如大肠杆菌和P. aeruginosa失活. 这种协同消毒方法为水处理提供了节能和有效的解决方案.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 微生物学 微生物学
背景情况:
- 大肠杆菌和 Pseudomonas aeruginosa 是常见的通过水传播的病原体.
- 有效的水消毒方法对公众健康至关重要.
- 现有的方法可能在效率或成本方面存在局限性.
研究的目的:
- 实施和评估一种与UV-LED相结合的电化学系统,用于细菌失活.
- 评估综合系统的协同效应和能源效率.
- 用这种新的方法研究灌水的消毒.
主要方法:
- 使用GDE/DSA电极的电化学系统与UV-LED相结合.
- 使用血盘计数和流细胞计量来确定细菌的无活化和不可活性.
- 分析了单个系统组件 (阳极,阴极,光) 的贡献.
- 在灌水样本上测试了消毒效率.
主要成果:
- 结合的UV-LED/GDE/DSA系统在细菌不活化方面表现出高的协同效应 (φ > 7).
- 观察到电能消耗较低 (EEO: 1.131.55 × 10-2 kWh/m3). 由于电能消耗较低,因此电能消耗较低.
- 大肠杆菌和P. aeruginosa都在2分钟内失活了.
- 灌水消毒可以在45分钟内消除可培养细菌.
结论:
- 电化学和UV-LED的组合是一个高度协同和节能的消毒系统.
- 这种方法有效地灭活了包括大肠杆菌和P. aeruginosa在内的阴性细菌.
- 该系统显示出巨大的潜力,作为水消毒的替代方案,特别是灌水.
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