Open AccessRESEARCH OF THE EFFICIENCY OF REAGENT-FREE ELECTROMAGNETIC TREATMENT OF SOURCE WATER AT PETROCHEMICAL ENTERPRISES
Author(s) -
E. E. Ergozhin,
Т. K. Chalov,
K. Kh. Khakimbolatova,
Т. V. Kovrigina,
Е. А. Мельников
Publication year - 2021
Publication title -
himičeskij žurnal kazahstana
Language(s) - English
Resource type - Journals
eISSN - 2710-1185
pISSN - 1813-1107
DOI - 10.51580/2021-1/2710-1185.01
Subject(s) - reverse osmosis , reverse osmosis plant , desalination , water treatment , reagent , petrochemical , pulp and paper industry , purified water , membrane , waste management , environmental science , chemistry , process engineering , chromatography , environmental engineering , engineering , organic chemistry , biochemistry
A technological scheme and technical documentation for the manufacture of a test bench with a purified water capacity of 300 l/h have been developed. Long-term tests were carried out on a test bench, as well as analysis of the quality of the sampled water before purification, with the use of an electromagnetic treatment device and without it. As a result of the tests carried out, it was found that the total salt content after the reverse osmosis unit decreased from 535.5 to 30.0 mg / l, and in water with the use of magnetic water treat- ment – from 535.5 to 12.7. Moreover, the pH in the first case varied from 8.3 to 6.2, in the second – from 8.3 to 6.44. It has been established that the use of magnetic water treatment in desalination before the reverse osmosis unit has a positive result, namely, calcium and magnesium salts do not settle on the reverse osmosis membranes, thereby prolonging the service life of the reverse osmosis membranes.