Case study: design, operation, maintenance and water quality management of sustainable storm water ponds for roof runoff
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|Journal:||Bioresour Technol 2004/08/04|
|Address:||Institute for Infrastructure and Environment, School of Engineering and Electronics, College of Science and Engineering, The University of Edinburgh, Faraday Building, The King's Buildings, Edinburgh EH9 3JL, Scotland, UK. firstname.lastname@example.org|
The purpose of this case study was to optimise design, operation and maintenance guidelines, and to assess the water treatment potential of a storm water pond system after 15 months of operation. The system was based on a combined silt trap, attenuation pond and vegetated infiltration basin. This combination was used as the basis for construction of a roof water runoff system from a single domestic property. United Kingdom Building Research Establishment and Construction Industry Research and Information Association, and German Association for Water, Wastewater and Waste design guidelines were tested. These design guidelines failed because they did not consider local conditions. The infiltration function for the infiltration basin was logarithmic. Algal control techniques were successfully applied, and treatment of rainwater runoff from roofs was found to be largely unnecessary for recycling (e.g., watering plants). However, seasonal and diurnal variations of biochemical oxygen demand, dissolved oxygen and pH were recorded.