FLOAT COMBINE FOR WASTE WATER PURIFICATION Russian patent published in 2018 - IPC C02F1/24 B03D1/14 C02F1/74 B01F3/04 

FIELD: water treatment.

SUBSTANCE: invention can be used for wastewater treatment. Waste water treatment vessel includes housing 1 with sewage water supply pipes located on its outer side with reagents 3, working fluid in the form of purified water with dissolved air 22, foam channel 5 with outlet branch pipe 7 and branch pipes for the removal of purified water 10 and precipitate 17, a thickening unit of the precipitate. Inside body 1 there are baffles 6, device for regulating the level of water to be cleaned 9 and partition with a window closed by grid 8 with a mesh size of 0.01 to 0.7 mm. Ejector 2 is installed on the outer side of the tank of the combine. Branches of foam channel 7 and the outlet of cake 17 are connected to additional screw thickener 13 installed as a thickening aggregate with sludge collection chamber 21 inside which there is false perforated bottom 18 with a living section from 20–60 % of the total floor area. Length of screw 15 is in relation to the diameter of screw 15 from 25:1 to 35:1.

EFFECT: invention allows to increase the efficiency of wastewater treatment and to increase the degree of thickening of the sediment.

3 cl, 1 dwg