SEWAGE WATER PURIFICATION PLANT Russian patent published in 2008 - IPC C02F3/18 C02F9/14 

FIELD: water purification.

SUBSTANCE: plant consists of vertical cylindrical two-case activation reservoir 1, in whose central part two mutually parallel separating walls 4 are installed, which separate relative to inner case 3 two symmetrically placed functional spaces for sewage water and purifying cultures. In each space sedimentation tanks 6 are installed separately. Central part 5 of sewage water purification plant is vertically divided into several interconnected with through holes chambers, which form selector 9, joined by its inlet with outlet of large sewage separator 10 or with outlet of drum separator 11. With its outlet selector 9 is connected with round denitrification space 16, located between both cases 2, 3 of activation reservoir 1. Selector 9 is formed by at least two placed near each other chambers with vertical partitions 8. At the bottom of said chambers there is pipeline 13 of head air with microbubble diffusers 14, through which compressed air is blown from low-pressure compressors 12. Into one of said chambers through regeneration reservoir 15 recycled active silt from bottom of sedimentation tanks 6 is supplied. In denitrification space 16 mixers 18 are located. At the bottom of dentrification space 16 there is perforated pipeline 17 of supplementary oxidation system. Clarified water flows through toothed edge of gutter 21, and further into unit 22 of final water purification. Unit 22 of final water purification can contain drum micro-sieves, sand filters 23, or their combination.

EFFECT: economical use of space with increased efficiency of purification and reduction of energy demand of sewage purification process.

10 cl, 2 dwg