现有紫外线消毒设施的流动性要求,以符合回收水的欧盟验证性能目标:一个案例研究
Amaia Verónica Carabias1, Maria Isabel Gil2, Juan Marcos Pérez3
1Acciona Agua, S.A., EDAR Bullas, Paraje los Muletos, s/n - 30180 Bullas, Murcia, Spain
概括
新的欧洲法规要求对水的再利用进行监测. 这项研究提供了Clostridium perfringens子和大肠杆菌的紫外线流动反应数据,有助于对消毒系统的设计进行合规.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 水处理工程水处理工程
背景情况:
- 欧盟法规 (EU, 2020/741) 制定了新的水再利用标准.
- 现有的废水回收设施可能难以达到新的性能目标.
- 紫外线消毒系统的设计需要准确的流动性要求以达到合规性.
研究的目的:
- 建立关键指标微生物的紫外线流动反应曲线.
- 为设计回收水的紫外线消毒系统提供数据.
- 为了支持遵守新的欧洲水资源再利用法规.
主要方法:
- 进行了UV-LED聚合束测试.
- 分析了二次处理的废水废水样本.
- 针对目标微生物开发了流动性反应曲线.
主要成果:
- 对于Clostridium perfringens子 (33.46 mJ/cm2 log−1) 和大肠杆菌 (2.86 mJ/cm2 log−1) 的紫外线敏感性确定.
- 在量化极限以下的时间里,体被禁用了.
- 环境F特异性菌体显示MS2菌体没有占主导地位.
结论:
- 该研究为水资源回收的紫外线消毒系统设计提供了必要的数据.
- 发现有助于设施满足欧洲的水再利用监测要求.
- 紫外线LED技术为再生水提供了一种可行的消毒方法.
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