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在狭窄的城市空间,通过混合式顺序沉生物过系统处理雨水

P Jarosiewicz¹, A Font-Najera², J Mankiewicz-Boczek¹

¹University of Lodz, Faculty of Biology and Environmental Protection, UNESCO Chair on Ecohydrology and Applied Ecology, Banacha 12/16, 90-237, Lodz, Poland.

|November 7, 2024

概括

本研究介绍了一种混合式雨水处理系统,将传统基础设施与基于自然的解决方案 (NbS) 结合起来. 顺序沉积生物过系统 (SSBS) 有效地去除城市地区的酸盐和等营养物质.

科学领域:

环境工程环境工程
城市水资源管理
基于自然的解决方案

背景情况:

城市化加剧了水资源挑战,需要创新的气候适应和水质管理.
将基于自然的解决方案 (NbS) 与现有城市基础设施相结合至关重要,但往往是有限的.
狭窄的城市空间为实施有效的雨水处理带来了独特的挑战.

研究的目的:

介绍一种新的混合系统,即顺序沉积生物过系统 (SSBS),用于在有限的城市空间中处理雨水.
评估SSBS在去除营养和沉积物的效率,重点是透反应屏障 (PRB).
评估NbS在现有城市雨水基础设施中的整合潜力.

主要方法:

设计了一种混合系统 (SSBS),集成了一个沉积 (SED),三个透反应屏障 (PRB) 和一个生物过区 (BIO).
该系统适应现有的雨水基础设施,以适应空间有限的城市环境.
性能是根据营养和沉积物去除效率进行评估的,特别关注PRB在高液压负载率 (HLR = 1.31 m/d) 下的性能.

主要成果:

由于空间限制和高HLR,在SED和PRB中观察到有限的沉积物去除 (13.6%的总悬浮固体 - TSS).
PRBs显示出大量的氨 (43.4%) 和 (59.3%),归因于和生物膜活动.
生物过区进一步改善了营养保留 (56%PO4-P) 和TSS去除 (52%).

结论:

在城市环境中,SSBS显示了将NbS与传统基础设施集成的潜力.
这种混合系统在雨水处理中是有效的,即使在空间有限的环境中.
PRB是营养物质去除的关键组成部分,而生物过区提高了整体处理效率.

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