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Gatzweiler J.,Bjornsen Beratende Ingenieure GmbH | Lehmann B.,TU Darmstadt | Mewis P.,TU Darmstadt | Redeker M.,Cdm Smith
WasserWirtschaft | Year: 2016

At many locations turning pools have to be integrated into fish passes, for example due to restricted space available. To date the knowledge of the hydraulics and ecological performance of these special basins is limited. The flow patterns and vortices in the pools of fish passes can be simulated with 3D hydrodynamic models already during the design phase. The advantages and limitations of 3D hydrodynamic models were demonstrated in the context of a study of three turning pools of a planned fishway. In addition, a new turning pool shape was developed that best met the established passage criteria.


Based on the quite recently published Guidelines for Development of Flood Hazard Maps and Flood Risk Maps by the German Working Group on water issues of the Federal States and the Federal Government (LAWA) the Flood Risk Maps for the Federal State of Rhineland-Palatinate are currently processed. Thus the second phase of the implementation of the EU Floods Directive will be completed at the end of this year. Information and results for the public and communities will be made available through the internet (GeoPortal Wasser of the Federal State of Rhineland-Palatinate). Further the Flood Hazard Maps and Flood Risk Maps will be presented to the Flood Partnerships. The Flood Partnerships operate on catchment scale with the objective of strengthening flood awareness.


Schopfer C.,Bjornsen Beratende Ingenieure GmbH | Krath U.,Bjornsen Beratende Ingenieure GmbH | Kowtsch K.,Bjornsen Beratende Ingenieure GmbH
Umweltwissenschaften und Schadstoff-Forschung | Year: 2010

The transformation of the former blast-furnace site "Hermannhü tte" in Dortmund-Hoerde into commercial, residential and service parks, called PHOENIX East and PHOENIX West involves some unusual challenges concerning the water management. The retention of sediments and nutrients plays an important role. To achieve the objectives, various management measures are being used. The installation of an artificial lake in PHOENIX East, which is groundwater- and rainfed, has different requirements than the conventional purification and retention of surface water in PHOENIX West. Both conventional methods such as storm water sedimentation tank and -reservoirs as well as soil filtration, phosphates elimination, Biodyozon®-plant and biomass management ensure good water quality. © Springer-Verlag 2010.


About 200 ha of big industrial derelict land will be revitalized. Expanses of water and the renaturalized Emser are the center of attention, commercial use and high-class housing will be established.


Climate protection and energy turnaround require many specific measures. Municipalities and regional power supply companies work together. A planning approach for power supply out of renewable energies will be presented. Starting from an "ideal" system, a step-by-step adjustment of the existing situation to this system takes place.

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