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Decentralized treatment of stormwater runoff with the HydroSystem

Decentralized treatment of stormwater runoff with the HydroSystem. Impact on Waterbodies. Photographs: Surholt und Keckevoet (2001) Dierkes (2005). Heavy metals in waterways. Target values. Underground infiltration: German Soil Restoration Law

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Decentralized treatment of stormwater runoff with the HydroSystem

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  1. Decentralized treatment of stormwater runoff with the HydroSystem

  2. Impact on Waterbodies Photographs: Surholt und Keckevoet (2001) Dierkes (2005)

  3. Heavy metals in waterways

  4. Target values • Underground infiltration: • German Soil Restoration Law • German Working Group on water issues of the Federal States and the Federal Government • Discharge into Receiving Water • German Working Group on water issues of the Federal States and the Federal Government • Rainwater Harvesting • Drinking Water Ordinance • Requirements for process water

  5. Definition of target values

  6. Sedimentation Filtration Precipitation Oils Sorption Working Principle

  7. Installation example

  8. Installation example

  9. Installation example

  10. Research projects Academy of Fine Arts, Munich, Copper roof, Technical University of Munich, Prof. Wilderer Old peoples´s home, Wahlscheid, Zink roof, University of applied Sciences Bochum, Prof. Nolting Mittlerer Ring Munich, Motorway, Technical University Munich, Dr. Helmreich Aasee Project Muenster, Separate System, University of Münster, Prof. Coldewey Comparison with treatment pond, Wuppertal, separate drainage system, Dr. Pecher AG Bremer Straße, Hamburg

  11. Monitoring

  12. Removal of Zinc 2,5 Zulauf 2,0 Ablauf 1,5 Konzentration Zn (mg/l) 1,0 Zielwert 0,5 0,0 10.10.2006 07.02.2007 07.06.2007 05.10.2007 02.02.2008 01.06.2008 29.09.2008 Datum

  13. Inflow Outflow filter Seepage Permissible Limit Germany Comparison of 3 filters 3000 2500 g/L) 2000 m 1500 Concentration ( 1000 500 0 Concrete Zeolithe 1 Zeolithe 2 Athanasiadis et al. 2006

  14. Water Quality

  15. Construction

  16. Maintenance

  17. Results Datum TSS Zn Cu Pb PO4 NH4 HC Runoff (mg/L) 425 0.676 0.279 0.113 0.88 0.83 2.17 Outflow (mg/L) 27 0.094 0.046 0.021 0.17 0.07 0.20 Aim (mg/L) 50 0.500 0.050 0.025 0.20 0.10 0.20 Eff. 3P filter (%) 94 86 84 82 81 91 91 Eff. new filter (%) 91 94 94 96 81 93 85

  18. Retrofitting

  19. Installation examples

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