OPTIMIZATION OF COSTS FOR ORGANIZATION OF A DECENTRALIZED UNDERGROUND SOURCE OF DRINKING WATER
DOI:
https://doi.org/10.20535/wptstn.v28i3.218556Keywords:
groundwater, depth, monitoring, nitrates, hardness, iron, manganese, databases, cost optimizationAbstract
The purpose of this work is to determine the optimal conditions for Kiev and the Kiev region, under which the costs of organizing a decentralized underground source of drinking water, including well construction and the use of a local water purification system, will be minimal.
The analysis is based on the results of the processing of database monitoring project Ukrainian Water Society WaterNet «Map of water quality", which as of October 2020 there are 54,8 thousand of the results of analyzes of water samples from different water sources in Ukraine, including 24,8 thousand test results groundwater samples Kiev and Kiev region, who regularly carried out during the last ten years.
An assessment was made of the capital and operating costs for the organization of a decentralized underground source of drinking water, depending on the depth of the well and the parameters of water quality at a given depth.
In Kiev and Kiev region, within the studied depth range (from 5 to 210 meters), the main pollutants are nitrates, hardness salts, iron and manganese.
The value of the cost of treated water is in the range from 0.89 to 1.3 USD/m3. The cost of water treatment reaches its maximum values for the surface layers (above 27.5 meters), where the water is polluted with nitrates.
It was found that the optimal well drilling depth is 50 ± 5 m, at which the cost of 1 cubic meter of treated water is up to the level of the requirements of the Nation Sanitary Rules and Norms "Hygienic Requirements for Drinking Water Intended for Human Consumption" (GSanPiN 2.2.4-171-10) is 0.89 USD/m3, for water supply with a capacity of 2 m3/day.
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Copyright (c) 2020 Ефим Дрикер, Тетяна Мітченко
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