E3S Web Conf.
Volume 97, 2019XXII International Scientific Conference “Construction the Formation of Living Environment” (FORM-2019)
|Number of page(s)||8|
|Published online||29 May 2019|
Devices for cleaning tap water
Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow, 129337, Russia
* Corresponding author: GovorovaZhM@mgsu.ru
The condition of the water distribution network of the centralized water supply and its high wear, at the same time with other factors, affect the quality of drinking water transported to the consumer of drinking water. The most common causes of the secondary pollution of drinking water during its transportation are considered, as a result of which the concentration of dissolved and undissolved impurities and corrosion products increases, unpleasant smells and tastes appear in the water, microbiological and parasitological indicators deteriorate. Along with measures to improve the technology of water purification at waterworks, replacement, cleaning and repair of pipelines, in practice domestic water purification devices are used. The results of studies of the effectiveness of additional purification of drinking water are presented in the article. The water is taken for analysis from different points of the Moscow distribution network on water treatment devices: “JNT-RO”, filter “Aquafor”, installation “OSMO 300” with a capacity from 187.2 to 380 l/day. The results showed that the original tap water in its qualitative composition met the regulatory requirements for drinking water, and after passing through the elements of water purification devices during the stated service life the quality characteristics of turbidity - 100%, chromaticity - 84.6-100%, Total Dissolved Solids (TDS) - 84.4-94.2% and hardness - 87.3-93.8% improved. The calcium content in purified water ranged from 6.8 to 12 mg/l.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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