RU1813739C - Sewage water treatment plant - Google Patents

Abstract

Use: in wastewater treatment plants in agriculture, in particular for the treatment of pig farm effluents. The drains from the cavity 16 through the windows 17 enter the non-rigid conical perforated partition (NKPP) 9, where water is separated, which partially moves along the gap 15 and partially passes through the additional NKP 14. Water moves in the gap 15 and prevents blockage then the NKPP 14, and if it is lacking, additional water is introduced from the tank 12, and to reduce its consumption, the permeability of the NKPP 14 should be significantly lower than the permeability of the NKPP. 3 ill.

Description

The device relates to a filtering technique for the treatment of wastewater from predominantly agricultural production and can be used in wastewater treatment plants.

The purpose of the invention is to increase productivity by allowing washing of the perforated partition.

The use of washing the elastic perforated partition by supplying washing water to the gap with an additional partition allows the filtering ability of the partition to be restored and the productivity of the device to be improved during wastewater treatment.

In FIG. 1 shows a longitudinal section of a device; in FIG. 2 - node I in FIG. 1; in FIG. 3 is a flow chart for wastewater treatment of predominantly agricultural production using a device.

A device for treating wastewater includes a housing 1 with a nozzle 2 for supplying wastewater, a nozzle 3 for supplying washing water, a nozzle 4 for draining clarified water and washing water, a nozzle 5 for discharging sludge, a drive shaft 6 with upper 7 and lower 8 discs, elastic perforated partition 9 in the form of a truncated cone, a collection of 11 clarified water. The device is equipped with a flushing water pipe 3, mounted concentrically with the medium inlet pipe 2, an additional disk 12 mounted on an elastic support 13, mounted on the upper disk 7 with an additional elastic perforated partition 14 in the form of a truncated cone mounted on the additional disk 12 with a gap of 15 to the main perforated the partition 9 with the formation of a cavity 16 with the upper disk 7, communicating with the pipe 3 for supplying washing water, while the lower end of the additional partition 14 is located in the collection 11 branched fluid. In disks 7, 8 and 12, windows 17 are provided.

In the technological scheme of wastewater treatment, the devices are indicated by the numbers 18, 19, 20 and 21, in addition, the installation includes a grate 22, an arc sieve 23, aeration tanks 24 and 25, a digester 2b, a solid-phase smelter 27, a dryer 28 with a firebox 29 and a pellet cyclone torus 30, storage pond 31.

A device for treating wastewater of predominantly agricultural production in an installation operates as follows.

Wastewater is preferably agricultural production with a concentration of 1-4 g / l enter the grate 22,

where they are freed from large inclusions, to arc sieves 23. to release bristles, fluff, feather and other medium-sized inclusions, and then to the device 18 for

exemptions from small inclusions. Wastewater is adjusted according to biogenic nutrients and sent to aeration tank 24, where aerobic microorganisms adapted to biogenic are grown

wastewater feed elements. From the aerotank 24, the wastewater with microorganisms suspended in them enters the device 19 through the nozzle 2 through the windows 17 between the disks 7 and 8, rotating on the drive shaft b, and

5, water is separated on the elastic perforated partition 9, which passes through an additional elastic perforated partition 14, and clarified water is discharged from the collector 11 along a tangential pipe. 4 from the housing 1. During continuous operation of the device, productivity decreases due to blockage of the living section of the partition 9. then the wastewater supply through the pipe 2 is stopped and rinse water is supplied through the pipe 3, which fills the cavity 16 and the gap 15 and the living section of the partition 9 is regenerated Otoko water in a direction opposite filtrova0 audio, the amount of washing water should provide washing and filtration through the septum 14, The washing water is discharged through the pipe 4. After the reduction, the living sectional septum 9 to

5 to ensure the desired performance, the supply of washing water is stopped; the supply of wastewater is terminated through pipe 2 with the discharge of the biomass concentrate of microorganisms through pipe 5. For intensification

To flush the partition 9 by vibrating, the partition 14 with the additional disk 12 is mounted on an elastic support 13. The clarified water after the device 19 is adjusted according to the nutrient elements of the pan and enters the aeration tank 25, and from it to the device 20, whose operation is similar to that of the described device 19. The biomass concentrate from the device 19 and 20 enters the dryer 28, where it is dried

0 flue gases from a fire chamber 29 operating on biogas from a digester 26. Flue gases from 28 with suspended dry grit biomass enter a cyclone granulator 30, from where biomass is a commercial product

5 is fed to the packaging, and the spent flue gases are fed to the solid-state fermenter 27, (where the fermentation of the waste takes place after the grate 22, the arc sieve 23 and the device 18. The cake is also fed there after separation of the sludge water in the device 21 from the digester 26.

Excess water enters the storage pond 31.

Claims (1)

. The transition from activated sludge treatment to microbial treatment with selected microorganisms adapted to the biogenic nutrients of agricultural wastewater feeds makes it possible to combine treatment with the development of feed additives, which turns the operation of treatment plants into a cost-effective division of pig-breeding, poultry complexes and cattle farms, moreover, wastewater treatment is carried out according to an environmentally friendly and closed circuit without harming the environment. All this is achieved through the use of a device that provides filtration separation of microorganisms from wastewater. SUMMARY OF THE INVENTION A device for treating wastewater, predominantly in agricultural production, comprising a housing with inlets for supplying and discharging fluids, a drive shaft with upper and lower disks, an elastic perforator placed between them a truncated septum in the form of a truncated cone, a collection of clarified liquid, characterized in that, in order to increase productivity by providing the possibility of washing the perforated partitions, it is equipped with a flushing water pipe installed concentrically with the medium inlet pipe, an additional disk mounted on an elastic support fixed to the upper disk and an additional perforated elastic partition in the form of a truncated cone mounted on an additional disk with a gap to the main perforated partition with the formation of a cavity with the upper disk in communication with the nozzle for supplying washing water, while the lower end of the additional partition is located in the collection of clarified dkosti.