Rainwater Tanks are Less Efficient than Detention Basins for CSO Abatement

2002 ◽  
Author(s):  
Henrik So/nderup ◽  
Jens Jo/rgen Linde ◽  
So/ren Gabriel ◽  
Peter Steen Mikkelsen
Keyword(s):  
Detention Basins ◽  
Rainwater Tanks

scholarly journals Comprehensive Performance Evaluation of Green Infrastructure Practices for Urban Watersheds Using an Engineering–Environmental–Economic (3E) Model

2021 ◽  
Vol 13 (9) ◽  
pp. 4678
Author(s):  
Yi-Jia Xing ◽  
Tse-Lun Chen ◽  
Meng-Yao Gao ◽  
Si-Lu Pei ◽  
Wei-Bin Pan ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Environmental Economic ◽  
Environmental Impact ◽  
Pollution Control ◽  
Green Infrastructure ◽  
Stormwater Management ◽  
Economic Cost ◽  
Urban Watersheds ◽  
Comprehensive Performance ◽  
Detention Basins

Green infrastructure practices could provide innovative solutions for on-site stormwater management and runoff pollution control, which could relieve the stress of nonpoint pollution resulting from heavy rainfall events. In this study, the performance and cost-effectiveness of six green infrastructure practices, namely, green roofs, rain gardens, pervious surfaces, swales, detention basins, and constructed wetlands, were investigated. The comprehensive performance evaluation in terms of the engineering performance, environmental impact, and economic cost was determined in the proposed engineering–environmental–economic (3E) triangle model. The results revealed that these green infrastructure practices were effective for stormwater management in terms of runoff attenuation, peak flow reduction and delay, and pollutant attenuation. It was suggested that for pollution control, detention basins can efficiently reduce the total suspended solids, total nitrogen, total phosphorus, and lead. The implementation of detention basins is highly recommended due to their higher engineering performance and lower environmental impact and economic cost. A case study of a preliminary cost–benefit analysis of green infrastructure practice exemplified by the Pearl River Delta in China was addressed. It suggested that green infrastructure was cost-effective in stormwater management in this area, which would be helpful for sustaining healthy urban watersheds.

Rainwater tanks and microbial water quality: Are the indications clear?

2008 ◽  
Vol 12 (2) ◽  
pp. 143-151 ◽  
Author(s):  
C Evans ◽  
P Coombes ◽  
H Dunstan ◽  
T Harrison ◽  
A Martin ◽  
...  
Keyword(s):  
Water Quality ◽  
Microbial Water Quality ◽  
Rainwater Tanks

Optimisation of operational management practices for the detention basins

2001 ◽  
Vol 44 (2-3) ◽  
pp. 277-285 ◽  
Author(s):  
C. Jacopin ◽  
E. Lucas ◽  
M. Desbordes ◽  
P. Bourgogne
Keyword(s):  
Management Practices ◽  
Stormwater Treatment ◽  
Rainfall Events ◽  
Control Schemes ◽  
Operational Management ◽  
Detention Basins ◽  
Current Operation ◽  
Flooding Risk ◽  
Settling Process ◽  
Experimental Basins

The objective of this study is to develop new operational management practices for detention basins during rainfall events in order to limit flooding risk and, at the same time, to reduce pollutant discharges by optimising the settling process. For this work, a methodology was developed to study the integration of the stormwater treatment into existing detention structures. In this article, it was applied on two experimental sites. The current operation of the basins and “on/off” regulation studies were first carried out to quantify the freedom to act to change the control schemes. Relying on the support of these studies, new operational rules based on the current or “on/off” principle were then elaborated and tested on the experimental basins using a hydraulic model. Finally, their efficiency to protect against flooding and to reduce pollutant discharges was assessed.

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