Studying Drinking Water Quality and its Change During Transportation through Samara Water-Supply Facilities

[摘要] The paper investigates changes in water physico-chemical composition and its physical indicators through ζ-potential in residential buildings in eight administrative districts of Samara. The results are processed by the methods of mathematical statistics and presented at the 0.05 level of importance. The sampling points for water in the city districts were chosen with the aid of random numbers tables. It was determined that the quality of drinking water was stable and consistent with the existing standards in Zheleznodorozhniy, Samarskiy, Leninskiy, Octyabrskiy, Kirovsliy, Sovetskiy and Promyshlenniy districts of Samara. The following indicators were taken into account: pH, colour, turbidity, alkalinity, general rigidity, content of ions Ca2 +, Mg2 +. It was also established that drinking water in Kuibyshevskiy district (with all other excellent indicators) had increased mineralization due to the natural hydrological conditions of the water inlet. Some change in the size of zeta-potential of the water was detected during its transportation through the existing water-supplying networks of the city. It was shown that the link between zeta-potential and various kinds of contamination in drinking water is underexplored and requires further detailed study.

[发布机构] Institute of Architecture and Civil Engineering, Samara State Technical University, Molodogvardeyskaya St., 194, Samara; 443001, Russia^1;Limited Liability Company Samara Utility Systems, Lunacharskogo Str., 56, Samara; 443056, Russia^2

[学科分类] 土木及结构工程学

[关键词] Hydrological condition;Physical indicators;Physico-chemical composition;Random Numbers;Residential building;Sampling points;Water inlets;Water supplying