Odprowadzanie i oczyszczanie wód deszczowych w strefach ochronnych ujęć wody

Polluted rain water runoffs have always raised serious environmental problems especially in the vicinity of intakes for municipal water supply. Rain water is known to carry a considerable load of organic and mineral pollutants (TOC, nitrogen, phosphorus, heavy metals). In this paper, particular consideration has been given to the runoff coming from road and motorway nets, which is additionally polluted with oil derivates, as well as some toxic substances released to the environment by spills. Making use of his own results and of the experimental data reported in specialized literature, the author provides examples of how the rain water pollutants contribute to the degradation of surface watercourses and groundwater. He discusses various methods by which this unfourable contribution can be reduced within the area of municipal water intakes. He also gives a brief account of methods for the retention and treatment of rain water runoffs, and a detailed description of relevant equipment.