Purification of acidic highly mineralized spent regeneration solution of Novo-Salavatskaya TTP

The results of laboratory studies and industrial experiments on the neutralization and purification of highly mineralized acid waste regeneration solutions of the ion-exchange water-preparation plant H-cationite filters are given. As the reagent the carbonate sludge from the pre-cleaning of the water treatment plant was used. A sludge was used in a dry dehydrated form. During a laboratory study, it was shown that there are a significant sulfate content reduction and a pH increase. The sulfate determination was carried out by turbidimetric method using a Shimadzu UV-1800 spectrophotometer. The water treatment sludge using at Novo-Salavatskaya TPP is able to reduce the sulfate content in acid waste water from 16.8 g / l to l g / l. This way of neutralizing can reduce these penalty sanctions for thermal power plants for wastewater discharge.