MULTI-SECTION CONTACT TANK FOR OZONE WATER TREATMENT Russian patent published in 2013 - IPC C02F1/78 

FIELD: process engineering.

SUBSTANCE: invention relates to water ozone treatment equipment and can be used, in particular, for decontamination of drinking water in water supply systems and disinfection of reused water in swimming pools. Contact reservoir comprises several intercommunicated reaction sections arranged between pressure compartment of said contact reservoir communicated with treated water source and drain compartment with branch pipe to feed water to consumers. It is equipped with the system to feed air-ozone mix to every said reaction section and to disperse it into water and the system to discharge and destruct residual ozone in said air-ozone mix. Extra section-to-section bypass compartments are arranged to reverse the water flow. Besides, every section is additionally equipped with the devices intended for uniform water distribution over its cross-section and arranged at two horizontal levels. Perforated pipes arranged in parallel with one end plugged are installed under water level in section upper part, open ends of said pipes being communicated with section-to-section bypass compartments and drain compartment. Under the level of air-ozone mix distributors installed are either similar perforated pipes with their open ends in different sections communicated with upstream pressure and section-to-section bypass compartments, or perforated horizontal baffles with spaces there below communicated via openings made in sections walls to separate them from downstream pressure and section-to-section bypass compartments.

EFFECT: higher quality of drinking water and efficient use of ozone produced for water treatment.

5 cl, 5 dwg