The climate change prognosis in the Kharkiv region shows an increasing danger of forest fires and negative consequences for the environmental components. In this article the negative impact from forests fires on the environment have been analyzed. The new method is proposed for cleaning the surface runoff, which is formed after a forest fire, by filtering in artificial or natural through the biological trenches using basalt chips of 0,5–2 mm in size as a filtration nozzle. Use of the proposed method of surface runoff purification will improve the water ecosystem sanitation and the increase of the ecological safety due to the production company wastes utilization. The proposed method of stormwater treatment is easy to operate, ecologically friendly and economically advantageous.

Pollution of surface and ground waters by surface (rain and melt) waste water is a big problem for many countries of the world. In addition to anthropogenic factors leading to the pollution of surface runoff, one should add runoff, which is formed after extinguishing fires of various scales and territories. As a result of extinguishing fires, a large amount of pollutants enters surface wastewater, which creates an additional load on soils, groundwater aquifers and water bodies. The paper proposes a wastewater treatment method using PET granules and polyurethane foam granules as a filtering layer. The use of PET packaging waste for the purification of rain and melt wastewater allows to reduce the anthropogenic load on the environment and to increase the use of plastic waste.