METHOD FOR PURIFICATION OF BORON-CONTAINING WATERS

摘要

The invention relates to the field of water treatment, industrial and domestic wastewaters, in particular to purification of boron-containing waters. A method for purification of boron-containing waters consists in filtration of water through sorbent and regeneration of the later with acid. The regeneration solution is treated in electric dialyzer, pH of obtained dialysate of boric acid is brought to 10.0-11.0 and delivered to the reverse-osmosis apparatus. Calcium borate is precipitated from the obtained concentrate in a certain way, and acid concentrate after electric dialysis is used for the regeneration of sorbent. The realization of proposed method provides return to the process of about 40 % of acid of reclaim, and also producing of precious product - calcium borate.