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

FIELD: chemistry.

SUBSTANCE: invention relates to equipment for treating water by ozonation and can be used particularly in decontaminating drinking water in water supply systems of cities and population centres and disinfecting recycled pool water. The three-section contact tank has three sealed reaction vessels connected to each other. Between the second and third sections there is an additional inter-section by-pass compartment with a partition wall in the middle, in the bottom part of which there is a through-channel. Each section of the contact tank is further equipped with perforated pipes which are plugged at one end. One group of said pies is mounted on top below the water level in the section, and the other group is mounted at the bottom of the section under ozone-air mixture dispersers. Open ends of the pipes mounted on top at the water level of the first section are linked with a pressure compartment. Open ends of the bottom pipes in the first section are mated with bottom pipes of the second section. Open ends of pipes mounted below the water level of the first and third sections are linked with cavities of the inter-section by-pass compartment. Open ends of the bottom pipes of the third section are linked with a drainage compartment.

EFFECT: high quality of drinking water and efficiency of using the produced ozone.

7 cl, 5 dwg