Analysis of the Water Demand in the Slovak Republic and Ukraine

Designing new and reconstructing existing water supply networks are based on water demand. Most of the existing water supply networks in Ukraine are designed for a higher amount of water flow in the pipes, which causes a decrease in the velocity of water, an increase in the duration of stay of water in the network and deterioration of water quality. Ukrainian water demand (average daily per year) of drinking water is higher than Slovakian: up to 35% for residential houses with water supply and sewage without baths; from 11% to 74% for houses with local water heaters; from 59% to 96.5% for houses with centralized hot water supply. For the majority of other consumers, the divergence of normative water consumption is insignificant. A comparison of water consumption in Ukraine and the Slovak Republic has been performed for the selected example in residential houses, industrial plants, irrigation of greenery and street sprinkling of surfaces. For the selected example, the total average water demand in Ukraine is higher than in the Slovak Republic by 44.41%, maximum water demand by 39.88%, minimum water demand by 9.98%.