№1|2020

DRINKING WATER SUPPLY

DOI 10.35776/MNP.2020.01.01

UDC 628.16:62-278

Pervov A. G., Golovesov V. A., Spitsov D. V., Rudakova G. Ya.

Ways of reducing the operating costs of membrane units
for the preparation of drinking water from underground water sources

Summary

Experimental investigations have been conducted to determine the main process parameters of membrane units (filtrate yield, the rate of scaling on membrane surface). Basing on the results of the experimental studies the total costs of purification of underground water of various chemical composition were obtained. The studies were conducted on laboratory benches with the use of nanofiltration membranes with various selectivity rates. The consumption of service chemicals and operational costs for the equipment were calculated by the software designed earlier by the authors for determining the process parameters of membrane units. While designing membrane units, nanofiltration membranes with low values of selectivity, power consumption and expenditures for chemicals are preferred. The dependencies of the calcium carbonate scaling rates on membrane types and the multiplicity of volumetric concentration of source water were obtained. A comparison of costs shows that the use of membranes even for cases of water deferrization is more economical than the known traditional technologies.

Key words

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