METHOD OF DEHYDRATING PREPARED SEDIMENT OF PUBLIC UTILITY SEWAGE Russian patent published in 2013 - IPC C02F11/14 C02F1/56 C02F1/34 B01D21/01 C02F103/34 

FIELD: chemistry.

SUBSTANCE: invention can be applied in production of composite materials, which can be applied in road-transport construction, as manure for roadside landscaping, forestation, revegetation of polygons of solid domestic wastes and polygons of industrial wastes, for biological revegetation of disturbed lands. To realise the method suspension of sewage water sediment is preliminarily diluted until content of dry substances is 4.5-5.5%. Solution of flocculant with concentration 1-2% is prepared. Prepared sediment suspension and flocculant solution are supplied into mixing unit. Sediment suspension and flocculant solution are mixed with application of sequentially placed cavitational and scapular mixers, processed with flocculant solution suspension of sewage sediment is pumped into reservoirs from geotextile, in which separation of solid and liquid phases takes place.

EFFECT: method ensures increased efficiency of water separation from solid phase of suspension of public utility sewage sediment.