Hrabitchenko V. Complex processing of highly mineralized effluents in the environmentally safe industrial water consumption

This dissertation is devoted to the developing of complex methods of highly mineralized water desalination. The processes of sodium-cationic softening and ion-exchange stabilization of water were studied. It was shown that the weak-acid cation ion-exchanger effectively sorbs the hardness ions from water solutions even at significant amount of sodium chloride. It was shown that chlorides, nitrates and sulfates effectively separated on high-basic ion-exchanger AV-17-8. The processes of electrochemical treatment of liquid chlorides effluents were studied. The processes of electrochemical concentration of sodium and calcium chloride were studied. For the first time, for the prevention of degasification of oxygenated chlorides the high-basic anion ion-exchanger AV-17-8 was used. For the first time, the electrochemical processing of liquid chlorides effluents in aluminum coagulants was studied. The fundamental technological schemes of mineralized water desalination, which provides complete processing of generated waste, were proposed. Technological processes of desalination of mine and natural waters were tested at the State Enterprise "Eastern Mining and Processing Plant", and the plant for water stabilization was introduced at "Kulinichi Bread Factory". Keywords: softening, desalination, ion-exchange, reverse osmosis, electrodialysis, liquid effluents processing.