城市排水系统中减轻硫化排放:防恶臭水凝的有效性
Malvin Subroto Pamudji1, Ka Kit Cheng1, King Lun Yeung2
1Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong Special Administrative Region.
Journal of hazardous materials
|July 6, 2025
概括
一种新型的水凝有效地将城市排水系统的硫化 (H2S) 排放量减少了90%以上. 这种恶臭控制溶液还减少了无氧细菌,改善了水质和城市弹性.
科学领域:
- 环境科学 环境科学
- 城市水资源管理
- 微生物学 微生物学
背景情况:
- 城市排水系统对于管理雨水和废水至关重要.
- 恶臭排放和微生物污染,主要来自硫化 (H2S),构成重大挑战.
- 现有的管理策略往往无法有效解决这些问题.
研究的目的:
- 评估一种新的恶臭控制 (MOC) 水凝,以减轻城市排水中的H2S度.
- 评估水凝对微生物负载及其生态影响的影响.
- 为了确定水凝在雨水排水和下水道系统中的有效性.
主要方法:
- 实地测试是在城市雨水排水和下水道系统中进行的.
- 这种MOC水凝在400g的剂量下部署.
- 在28天的水凝应用之前和之后,测量了H2S度和无氧细菌数量.
主要成果:
- 在雨水排水中观察到H2S水平降低了92% (4.14 ± 2.97 ppm至0.32 ± 1.07 ppm).
- 在下水道系统中的H2S度下降了95% (107.32 ± 122.57 ppm到5.00 ± 2.45 ppm).
- 在雨水排水中,无氧细菌的数量减少了71.2±64.4%,提高了水质.
结论:
- MOC水凝是一种高效的解决方案,可以抑制城市排水中的H2S生成.
- 水凝显示出显著的杀菌特性,可以对引起气味的厌氧生物有很大的作用.
- 这项创新支持可持续的城市水资源管理,并提高了应对气候相关挑战的弹性.
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