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ʠ622.276

.., . .., . E-mail: eastec@bk.ru

Π뻠(, 450038, , . , . , 131/1)

.., . . , . E-mail: vdn@mpline.ru Π,.(450038, , . , . 131/1) .., .. , . E-mail: a.lokshina@mpline.ru Π,.(450038, , . , . 131/1) , , .

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3 2014

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3 2014

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INSTALLATION ELECTRODIALYSIS TO IMPROVE RECYCLING SYSTEMS





INDUSTRIAL ENTERPRISES

Lokshin A.A., Candidate of Tech. Science. Eastecoil (131/1, ul. Internatsionalnaya, Ufa, Bashkortostan, 450038, Russian Federation).

E-mail: eastec@bk.ru Volodin D.N., Candidate of Tech. Science. UfabranchMegaProfiLine (131/1, ul. Internatsionalnaya, Ufa, Bashkortostan, 450038, Russian Federation). E-mail: vdn@mpline.ru Lokshina A.A., Candidate of Tech. Science. Ufa branch Mega ProfiLine (131/1, ul. Internatsionalnaya, Ufa, Bashkortostan, 450038, Russian Federation). E-mail: a.lokshina@mpline.ru

ABSTRACT

For systems of reverse water supply the balance of water has to be formed, considering all losses, necessary discharges and water additions into the system for compensation of all decreases from it.

Due to the fact that cooling of circulating water occurs as a result of evaporation, there is a concentration of the dissolved salts. Increase of salts concentration leads to salt sedimentation at the surface of the heat exchange equipment, decrease of heat takeoff from technological products and efficiency of water reverse system falls. Therefore it is necessary to do purge in order to keep salt balance in the system.

MEGA Profiline offers an optimal and the most effective solution for reduction of salinity in the reverse water for prevention of sedimentation on the walls of the equipment and pipelines, and also reduction of make-up water consumption. Such a solution is desalination of purge water by means of EDR units and its further return to the water reverse cycle.

The stream of purge water is fed to reversive electrodialysis unit (EDR) where desalination of this stream takes place, due to transfer of the dissolved salts ions through the membranes, selective to these ions in the field of direct electric current. As a result at the outlet from EDR unit there is a desalinated water (95%) and a concentrate (5%). Thus, purge water discharge in the sewerage is reduced almost by 20 times.

According to calculations payback of the EDR units, manufactured by MEGA, taking into account economy of make-up water and reduction of water discharge for treatment is 0,5-1,5 years depending on the coefficient of evaporation and the flow rate of water reverse system.

Keywords: recycling, water, scale, setting the revere-intensive electrodialysis.

REFERENCES

Emirdzhanov R.T. Osnovy tekhnologicheskikh raschetov v neftepererabotke [Bases of technological calculations in oil processing]. 1965.

Moscow: Khimiya Publ. (in Russian) Faramazov S.A. Oborudovaniye neftepererabatyvayushchikh zavodov i yego ekspluatatsiya [Equipment of oil refineries and its exploitation]. 1978. Moscow: Khimiya Publ. (in Russian) Lashchinskiy A.A., Tolchinskiy A.R. Osnovy konstruirovaniya i rascheta khimicheskoy apparatury [Bases of design and calculation of chemical equipment]. 1963. Moscow: Mashgiz Publ. (in Russian) Balashov Ye.V., Abalikhina T.A., Gavrilov N.B. and etc. Aktualnyye voprosy khimicheskoy nauki i tekhnologii i okhrany okruzhayushchey sredy. Okhrana okruzhayushchey sredy i ratsionalnoye ispolzovaniye prirodnykh resursov [Topical issues of chemical science and technology and protection of environment. Environmental protection and rational usage of natural resources]. Moscow: NIITEKHIM Publ., 1990.

Issue 9 (100). 48 p.

36 3 2014



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