Photo: Alessandro Della Valle - bathing scene in Bern Summer is here and Berlin, it pulls the water - especially in hot weather like in also. In the Land of Baden canal was possible until the 50s in some places. This inner-city swimming, it is restoring.
Vision
Studentenbad At the former, the Urban Port, the former Schöneberger port, in the Tiergarten and the Einstein bank be established swimming areas or swimming area and secured to the ship traffic. Bathing is free of charge. For waste management are solar-powered kiosks charge current, which cover the catering and other service needs. The respective districts to generate additional revenue this special use areas that contain occasional small maintenance can be financed.
problem
Although many pollution sources have been eliminated in recent years, there is still a big problem: When it rains heavily, the sewage runs through and a mixture of polluted storm water and waste water from households flows into the channel. This takes 20 to 30 times per year and shall, in consequence sometimes even for the phenomenon massive fish kills. The construction of underground storm water basin is the high cost is hardly affordable.
solution
A modular system of interconnected containers is directly installed in the channel in front of or near the points of discharge of sewage. The plant is located below the water surface and is anchored to the river bed. If it overflows during heavy rains, the system on the waste water and stores it. Does the rain and the sewage system after a few hours free, and is fed back into the water drainage system. On the containers, can be set up for special uses:
- pedestrian and cycle paths, which can then be passed without crossing the main bridges
- Additional holzbeplankte lying and sitting areas
- Disabled docks for canoes and solar taxi
- solar stations for boats and kiosks
water purification with ecological value added
can also be equipped to improve water quality parts of the canal bank with highly effective Schilfklärzonen. Even assuming that only 10% of the shoreline a 2-3 m wide reed beds will be set up thus leading to an effective cleaning area of approximately 5000m ², which is a Abasserlast of about 1,000 households with heavily polluted waste water, or up to 50,000 households, if only slightly dirty gray water is used as a basis. At the same time creates valuable ecological habitats.
conflicts of interest
The establishment of bathing areas, cycle lanes and other special uses and reed zones causes a reduction in the navigable channel cross-section by 20-25%. Bilateral descent with conventional diesel ships is therefore excluded. Diesel ships ban, however, also because of the shock wave and other Stresses caused by such transport.
The vision can therefore only in conjunction with a phase-out of conventional passenger ships and the transition to realize zero-emission passenger shipping, flow optimized for the much weaker engines and smaller or cross-sections used are (electric motors, plastic composites, catamaran construction, etc.).
The vision can therefore only in conjunction with a phase-out of conventional passenger ships and the transition to realize zero-emission passenger shipping, flow optimized for the much weaker engines and smaller or cross-sections used are (electric motors, plastic composites, catamaran construction, etc.).
Heritage preservation vehemently against a transformation of the riparian zones. The old river walls will not only get through, they should remain clearly visible. This may be prevented in some places (eg between urban and port Kottbusser bridge) are quite attractive and useful but in many places a contemporary development of the channel environment and is also not the originally designed by Lenné canal manner consistent sloping banks and even providing for planting reeds.
These conflicts of interest can only be negotiated in a transparent political process with broad citizen participation. In the current mediation process, which is based on the principle of consensus, any progress fails because of the blockade by backward-looking interests. The mediation process has reached a dead end and ultimately only serves the vested interests. The debate over the Landwehr channel must be done politically be.
More Resources: SPREE2011
More Resources: SPREE2011
