Modelling of different measures for improving removal in a stormwater pond

German, J, Jansons, K, Svensson, G, Karlsson, D and Gustafsson, LG (2005) Modelling of different measures for improving removal in a stormwater pond. Water Science And Technology, 52 5: 105-112.

Author German, J
Jansons, K
Svensson, G
Karlsson, D
Gustafsson, LG
Title Modelling of different measures for improving removal in a stormwater pond
Journal name Water Science And Technology   Check publisher's open access policy
ISSN 0273-1223
Publication date 2005
Sub-type Article (original research)
Open Access Status
Volume 52
Issue 5
Start page 105
End page 112
Total pages 8
Place of publication London
Publisher I W A Publishing
Collection year 2005
Language eng
Subject C1
0502 Environmental Science and Management
Abstract The effect of retrofitting an existing pond on removal efficiency and hydraulic performance was modelled using the commercial software Mike21 and compartmental modelling. The Mike21 model had previously been calibrated on the studied pond. Installation of baffles, the addition of culverts under a causeway and removal of an existing island were all studied as possible improvement measures in the pond. The subsequent effect on hydraulic performance and removal of. suspended solids was then evaluated. Copper, cadmium, BOD, nitrogen and phosphorus removal were,also investigated for that specific improvement measure showing the best results. Outcomes of this study reveal that all measures increase the removal efficiency of suspended solids. The hydraulic efficiency is improved for all cases, except for the case where the island is removed. Compartmental modelling was also used to evaluate hydraulic performance and facilitated a better understanding of the way each of the different measures affected the flow pattern and performance. It was concluded that the installation of baffles is the best of the studied measures resulting in a reduction in the annual load on the receiving lake by approximately 8,000 kg of suspended solids (25% reduction of the annual load), 2 kg of copper (10% reduction of the annual load) and 600 kg of BOD (10% reduction of the annual load).
Keyword Compartmental Modelling
Numerical Model
Removal Efficiency
Stormwater Pond
Engineering, Environmental
Environmental Sciences
Water Resources
Pollutant Removal
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 05:51:15 EST