Analysis of the potential of the city of Pokrovsk for the accumulation and use of atmospheric precipitation

Abstract

The problem of water shortage in the city of Pokrovsk, Donetsk region, requires the search for alternative sources of water supply, especially for the needs of industry and agriculture. Atmospheric precipitation is considered as an alternative source. However, at the stage of choosing and developing a method of managing rainwater from an urbanized area and implementing technical means for its accumulation, storage, and use, it is important to assess the quantitative indicators of stormwater runoff. Research is aimed at substantiating the possibility of using atmospheric precipitation as an auxiliary source of water supply for industrial-communal, domestic, and agricultural needs based on statistical determination of the dynamics of precipitation on the territory of the city of Pokrovsk. Changes in rainwater runoff parameters were determined based on the analysis of the meteorological data archive for the period 1985–2022.
The study found that the city of Pokrovsk has the potential for wastewater accumulation. The city has a tendency to increase the frequency of high-intensity storms with a 34.89% increase in the average height of the precipitation layer for one abnormal rainy day. Over the period 2004–2022, the average annual and annual rainfall per rainy day increased slightly by 0.56% and 6.23%, respectively, compared to the same period in the previous year (1985–2003), while the average number of rainy days per year decreased by 5.25%.
The dynamics of annual volumes of surface wastewater indicates the need to improve the city's rainwater accumulation system, which should provide a 35% increase in the current flow rate of abnormal rainfall and eliminate the risk of flooding. To do this, the storage capacity should be increased by deepening the city pond "Nulyovka" and the ridge located downstream. It is expedient for private households to create individual sediment accumulators.