METHOD OF PURIFICATION OF THE WASHING ALKALINE SOLUTION OF THE BOTTLE WASHING MACHINES Russian patent published in 2007 - IPC C02F1/42 B01J49/00 

FIELD: distillery industry; soft drink industry; other industries; methods of purification of the washing alkaline solutions of the bottle washing machines.

SUBSTANCE: the invention is pertaining to the methods of purification of the washing alkaline solution of the bottle washing machines from the suspended particles, the carbonates, the aluminates and other impurities introduced in it at washing of the reusable bottles. The method provides for batching into the polluted washing solution of the spent regeneration solutions (SRS) of the ion-exchange Na-cationite screens or N-cationite screens containing the calcium chloride and the magnesium chloride with the subsequent clarification of the liquid. The volume of the batched reclaim is accepted of not less than 3 % from the volume of the purified washing solution. The method of the invention allows to raise duration of usage of the washing alkaline solution without deterioration of its washing characteristics, to restore the chloride-containing reclaims, and also to diminish the discharge of the pollutants and to reduce expenditures on buying of the chemical reactants for purification of the washing alkaline solution. The settlings and the tailings formed at purification of the washing solution are subjected to dehydration and utilization.

EFFECT: the invention allows to raise duration of usage of the washing alkaline solution without deterioration of its washing characteristics, to restore the chloride-containing reclaims, to diminish the discharge of the pollutants, to reduce expenditures on buying of the chemical reactants for purification of the washing alkaline solution, to dehydrate and utilize the settlings and the tailings formed at purification of the washing solution.

2 cl, 2 ex, 2 tbl