Wetland park: an important element for sewage recycling in Kaliningrad

Kaliningrad is a large industrial city with the population more than 400 thousand people thathas no modem constructions for sewage treatment. Almost I 00 million m3 of sewage isannually discharged into the Pregolja River and the Vistula Lagoon. City authorities have aproject for constructing a full cycle of waste water treatment plant. However, the offereddevelopment plan and treatment level will not promote decreasing of eutrophication in theVistula Lagoon. In this article the opportunity of using water plants for additional cleaningsewage of Kaliningrad has being considered. For this purpose it is suggested to organize awetland park in a territory along the right bank of the Kaliningrad naval channel in an areawith 86.6 knl. The infrastructure for such wetland-park might be used for recreationalpurpose too. The proposal is to consider the wetland park as an effective commercialenterprise occupying certain sector in the economy of the city. The basic requirements toorganize the wetland park area are that: (I) The wetland-park area should be located nearbythe mechanical and biological sewage treatment; (2) Two zones should be created, anindustrial and a recreational zone; (3)The borders of zones should be separated by natural or artificial elements of landscape, forexample, forestations; (4) Economic and ecological requirements regarding the sewagemanagement in Kaliningrad city are related to the necessity of meeting the demands of theBaltic Region, in order to solve the environmental problems of the Baltic Sea.