№10|2014
DRINKING WATER SUPPLY
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UDC 628.1
Modern approaches to the upgrade of the water supply facilities
and water quality improvement on the territory of New Moscow
Summary
Following the accession of the territories of Naro-Fominskii, Podol’skii and Leninskii districts to Moscow and establishing the Troitskii and Novomoskovskii administrative districts a number of water facilities were signed off to «Mosvodokanal» JSC. Based on the inspection results it was found that most of the facilities were in a critical condition, the equipment was out-of-date, no automation or centralized control existed. Besides, only some water intakes had water softening and de-ironing systems given the fact that almost all underground water contains elevated concentrations of metals flushed out from water-bearing materials; consequently, only some water facilities supplied drinking water meeting the established standards to the customers. The technical and technologic solutions, the results of series of technical and preventive measures taken in order to ensure sanitary security and improve the quality of water supplied to the customers on the territories of the Troitskii and Novomoskovskii administrative districts are presented. These solutions include portable modular systems comprising: advanced water purification systems, disinfection, automation and centralized control. Depending on the underground water quality the purification systems comprise de-ironing with the use of sodium hypochlorite solution as an oxidant with subsequent filtration in pressure filters with inert or activated media, softening or filtration through reverse osmosis membranes. Where appropriate water flows through filters with activated carbon to eliminate hydrosulphuric odor. Before supply to the municipal distribution network water is subjected to final disinfection with sodium hypochlorite.
Key words
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