bbk 000000

UDC 628.165:62-278:621.311.21

Tsabilev O. V., Strelkov A. K.

Influence of Water Acidation Degree on Quality of Permeate of a Reverse Osmosis Plant


The results of industrial tests of the plant of reverse osmosis water desalination installed in the chemical water treatment shop of the Samara hydropower station are presented. Influent water is subjected to pre-treatment in clarifiers with liming, filtering on mechanical filters and two-stage Na-cation exchange. The influence of acid doses in the course of influent water acidification and the value of permeate output on its quality is studied. The evaluation of convergence of calculated data performed with the help of specialized software with the actually received values of permeate quality is made. Оbserved dependences allow us to make adjustments of the permeate quality obtained by the calculation method.

Key words

, , ,




bbk 000000

UDC 628.112.23:628.168.4

Tsabilev O. V., Strelkov A. K., Bykova P. G., Zanina Zh. V., Vasiliev V. V.

Treatment of Artesian Water for Domestic Water Supply


An example of solving the task of improvement of artesian water quality up to normative values with the help of baromembrane technologies is given. A flow chart of water treatment for household needs of a settlement optimal from the ecological and economical points of view is described. The comparative results of the technological calculation of various schemes of water demineralization and softening including the processes of ion exchange, nanofiltration and reverse osmosis are presented.

Key words

, , , , ,




bbk 000000

UDC 628.162:62-278

Pervov A. G., Efremov R. V.

The Use of Nanofiltration Membrane OPMN-K for Production of Potable Water and Calculation of Operation Characteristics


Recommendation on the use of nanofiltration membranes OPMN-K manufactured by the Vladipor OJSC for natural water treatment and production of potable water of high quality are presented. It is shown that at the high efficiency of removal of iron, hardness, fluorine and ammonium ions from water the OPMN membranes are exposed considerably less to the danger of generation of calcium carbonate cake on them than the low pressure reverse osmosis membranes. Depending on quality of influent water and types of membranes these recommendations make it possible to determine the reagent consumptions for operation of plants. Calculations presented show that the use of OPMN-K membranes instead of reverse osmosis membranes ESPA makes it possible to reduce significantly expenditures for operation of the ground water treatment unit.

Key words

, , , ,


vstmag engfree 200x100 2

myproject msk ru

ECW 2022 200x300

Российская ассоциация водоснабжения и водоотведения

watercongress ru 200x300

souz ingenerov 02