Abstract
The main contaminants of groundwater are iron and manganese compounds, increased hardness, which are removed at groundwater conditioning stations. The article reviews the existing station that was built according to a conventional design and uses the method of simplified aeration with the following filtration through high-silica sand. Assessment of the technical condition of the station showed that the elements of the building are limited to work The filters are in poor condition, some of the filters are out of service, there are concrete corrosion, destruction of finishing layers in filters’ building, internal and external corrosion of metallic pipelines and valves, which depend on he quality of transported water. Wear of the technological pipelines is over 80%. Analysis of the efficiency of the station showed that it operates at 50% capacity and at the same time does not provide standards for the hardness of drinking water. Water consumption for the station’s own needs is 1.5 times higher than it was designed. There are no processing and reusing facilities for flushing water. Results of the technical and technological inspection of the station showed that there is a need for immediate modernization of the station including the improvement of the groundwater purification technology and bringing he quality to the standards for drinking water.
Highlights
Artesian water is the main source of water supply for cities and towns of Moscow region of Russian Federation
The water consumption for the station’s own needs was 9.2 and 6.7 % in January and June respectively, which is significantly higher than the design value (Fig.2)
Depreciation of technological pipelines is over 80%, treatment facilities and buildings of the stations are in critical condition and require major repairs
Summary
To solve the urgent problem of providing consumers with drinking water and improving its quality, Russian Federation has initiated the Federal Program "Clean Water". It includes the construction of new stations, as well as the modernization or reconstruction of existing underground water conditioning stations. It is important to conduct field studies of an improved deferrization technology in order to obtain initial data for the development of a modernization or reconstruction project. It is important to conduct field studies of an improved deferrization technology in order to obtain source data for the development of a modernization or reconstruction project [3, 17]
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