HCl 5% is injected through the cationic resin andNaOH 4% is injected through the anionic resin. Thechemical injection is counter-current for a betterregeneration efficiency. H+ (from HCl) will displacethe ions fixed on the cationic resin and OH- (fromNaOH) will displace the ions fixed on the anionicresin. Fresh chemicals are injected through thecolumns which were in polishing; the outlet goesthen through the column which was in production
đang được dịch, vui lòng đợi..
