Fifty-Fifty

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Adapting Drain Water Systems

"Adapting Drain Water Systems" preserves the functionality of the sewage network during floods or droughts.


Internet link:


  • www.stadtentwaesserung-dresden.de (u.a. Broschüre zur Regenwasserbewirtschaftung der Stadtentwässerung Dresden; in german only)

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    Short description of measure

    Problem to be solved: Flooding, droughts

    Goal, potential objective: Preservation of functional ability in extreme weather situations

    Developmental steps: Detecting problematic parts in the sewage network; plan for dynamic control of sewage system; unhinge precipitation from the sewage network or build up own system for precipitation

    Instruments, implementation mechanism: Examination of rating mechanisms; close monitoring of discharges in waters and groundwater reservoirs; intelligent network control

    Area of implementation: Urban

    Responsibilities: Local wastewater company together with local environmental agency

    Time horizon: Medium term

    Economic aspects: Reduction of costs for complex irrigation; prevention of flood damage; general health

    Promoters, obstacles, risks: High investment costs into existing plants must be written off; only limited effectiveness for flooding events

    Side effects: Stabilisation of water balance; reducing costs for handling precipitation in the municipal sewage plant

    Bridge to mitigation: Minimising the costs for transmission security; minimising decentral degradation of carbon materials and thus increase the possibility to use the greenhouse gases in a central energy of heating plant