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评估大学建筑物中的雨水收集系统,以满足非饮用水需求
Mohammad Ayanul Huq Chowdhury1, Aysha Akter2
1Department of Civil Engineering, Chittagong University of Engineering and Technology (CUET), Chittagong, 4349, Bangladesh.
Scientific reports
|March 10, 2026
概括
雨水收集 (RWH) 可以在城市地区显著减少非饮用水的使用. 这项研究表明,RWH系统,有了适当的储存,可以满足对所冲洗,灌和车辆洗的需求,从而大幅节省水.
科学领域:
- 环境工程环境工程
- 水资源管理 水资源管理
- 可持续的城市发展
背景情况:
- 城市人口的增加推动了对饮用水的需求,使供应电网和地下水资源受到压力.
- 非饮用水的使用,如所冲洗,灌和车辆洗,代表了可以通过替代来源满足的大量需求.
- 雨水收集 (RWH) 提供了一个可持续的解决方案,以减轻对传统供水的压力.
研究的目的:
- 评估RWH系统满足学术建筑物中非饮用水需求的潜力.
- 在不同的储存场景下评估RWH的节水效率 (WSE).
- 分析存储容量,用户数量和使用区域对RWH性能的影响.
主要方法:
- 使用风暴水管理模型 (SWMM) LID框架进行RWH潜在调查.
- 模拟了一个液压模型,使用从1982年到2021年的历史每日降雨数据.
- 评估了两种储存场景:只有雨水桶 (5万升) 和联合雨水桶与地下水箱 (14万升).
主要成果:
- 在100名每日使用者中,所冲洗的节水效率 (WSE) 达到29%.
- 灌WSE从34.3%到100%不等,存储容量分别为50,000升和140,000升.
- 车辆洗WSE为10辆汽车/公共汽车,从51.3%到100%不等,而场景2满足28辆汽车或14辆公共汽车的需求.
结论:
- RWH系统的性能高度依赖于存储容量,用户数量和应用领域.
- 通过优化RWH系统,可以实现显著的节水和成本降低.
- 通过采集雨水来满足饮用水需求的进一步研究可能会带来更大的经济回报.
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