Prevention of salt deposition in circulating water by the combined use of a salt deposition inhibitor and magnetohydrodynamic treatment

Abstract

Abstract The article considers the possibility of using magnetohydrodynamic water treatment together with high-molecular polycarboxylates. The principle of calculating MHDT devices for increasing the efficiency of a polycarboxylate-based reagent is proposed. It is shown that the method of increasing the efficiency of a polycarboxylate-based salt deposition inhibitor in cooling water systems simultaneously with the use of magnetohydrodynamic treatment of circulating water allows reducing the reagent consumption, avoiding the use of nitrates and phosphates, and reducing technological costs. The effectiveness of the combined use of a polycarboxylate-based salt deposition inhibitor with the MHDT device has been confirmed by tests on the cooling water system equipment of an industrial enterprise. When testing the reduction of salt deposits with a polycarboxylate-based salt deposition inhibitor and MHDT, the inhibitor dosage was reduced from 5 to 1 ppm. Monitoring the efficiency of the heat exchanger (by temperature difference) showed that there were no deposits on the plates for three months. The number of heat exchanger repairs has been reduced by more than three times.