The startup of a wet retention pond designed for extended stormwater treatment was monitored by more than one year of continual measurement of hydraulic parameters, nutrients and quality parameters in the pond itself (pH, temperature, dissolved oxygen, turbidity). The data revealed that photosynthesis played an important role for dissolved oxygen and pH for most of the year. Another important observation was that the pond behaved more like a completely mixed reactor than like a plug flow reactor—even though the length to width ratio was as high as 4.5:1. The pond was equipped with sand filters and sorption filters whereby very good nutrient removal efficiencies were achieved.
Monitoring the startup of a wet detention pond equipped with sand filters and sorption filters
J. Vollertsen, K. H. Lange, J. Pedersen, P. Hallager, A. Bruus, A. Laustsen, V. W. Bundesen, H. Brix, A. H. Nielsen, N. H. Nielsen, T. Wium-Andersen, T. Hvitved-Jacobsen; Monitoring the startup of a wet detention pond equipped with sand filters and sorption filters. Water Sci Technol 1 April 2009; 60 (4): 1071–1079. doi: https://doi.org/10.2166/wst.2009.460
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