典型的低影响开发措施对控制城市雨水下水的热负荷的影响
1Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
The Science of the total environment
|September 10, 2023
概括
低影响开发 (LID) 显著减少了城市排水热污染. 使用陶颗粒的生物保留设施有效降低热负荷和热量,保护水生环境.
科学领域:
- 环境工程 环境工程
- 城市水文学 城市水文学
- 水质管理水质管理
背景情况:
- 城市土壤硬化加剧了表面雨水流失的热丰富.
- 城市排水造成的热污染对水生生态系统构成重大威胁.
- 关于使用低影响开发 (LID) 策略控制流出热负荷的研究有限.
研究的目的:
- 评估LID修改对控制城市排水热负荷的有效性.
- 评估生物保留系统在减轻热污染方面的性能.
- 量化热负荷和峰值热释放的减少.
主要方法:
- 监测各种城市表面的流水热负荷特征.
- 用陶颗粒进行实验室规模的生物保持实验.
- 在LID实施和生物保留处理之前和之后比较热负荷.
主要成果:
- 陶颗粒显示了显著的热负荷 (55.6%) 和体积 (32.7%) 降低生物保留.
- 在LID修改后,整体表面流失热负荷降低了73.42%.
- 生物保持二次处理将总流出热负荷降低到31.40%,并将峰值负荷延迟10分钟 (69.15%的减少).
结论:
- LID策略,特别是使用陶颗粒的生物防护,有效地减轻了城市排水热污染.
- 实施LID修改大大降低了影响城市水生环境的热负荷.
- 生物保留系统为管理城市雨水下水的热污染提供了可行的解决方案.
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