The concept of rainwater managment in Košice city

Abstract

In many parts of Europe water use is unsustainable and therefore is desirable to provide recommendations for a new approach to managing water resources in practise. Overexploitation has a heavy impact on the quality and quantity of the remaining water as well as the ecosystems which depend on it. Enlargements of settled areas, in consequence of urbanization and industrial activities, instead of greenery prevent from rainwater infiltration and temperature around the countryside is increasing. A problem of settled areas is to sustain comfortable microclimate especially in the summer. Dense urbanization change nature water regime of the natural ecosystem. Settled areas prevent rainwater infiltration and resupply of groundwater. Sewage systems of residential units were constructed as a single system in the past. There are strong pressures to limit the runoff of rainwater from the newly constructed buildings at the edges of cities. Therefore the sophisticated use of alternative supplies of water, such as the purified waste water from households and capture rainwater is essential, to help reduce water consumption. The purpose of the paper is to solve possibilities of rainwater management and about what can be done to reduce the construction of water runoff from the territory to avoid compromising the building's own water. The concept of drainage in cities, which aims to mitigate the impact of urbanization on the hydrological regime of the country and on aquatic ecosystems, come from our experiences and knowledge of current method of sewerage. New concept of capture and use water from surface run-off provides a platform for a new technical and non-technical measures, both in drained on each property, as well as the public part of urban drainage area.