SU1535843A1 - Device for cleaning liquid - Google Patents

Abstract

The invention relates to the technology of water purification from suspended substances used in the sewage treatment plants of water supply and sewage systems, in public utilities, industry and environmental protection. The purpose of the invention is to improve the quality of cleaning. A device for cleaning liquids contains a housing, a central supply pipe connected to a diffuser (D), a contact loading layer in the form of a floating granular material placed between the upper and lower grids in D, a loading ripper and a mesh spherical speed damper fixed at the outlet D. The complex use of adhesion-sorption properties of a contact load made up of a granular material with a high specific surface and high porosity, for example, crushed cake, claydite, etc., is and the formation of a flow of hydrodynamic properties of the diffuser in the filtration and sedimentation processes allows to achieve an increase in the quality of water purification from suspended solids. 1 hp f-ly, 1 ill.

Description

The invention relates to devices used in the purification of liquids (mainly water) from suspended solids by settling as part of water supply and sewage treatment plants in a public utility, in industry and in environmental protection measures.

The purpose of the invention is to improve the quality of water purification by increasing the utilization rate of the settling zone.

The drawing shows the proposed device, a General view.

The device comprises a housing 1, a central pipe 2 connected to the diffuser 3. Inside the diffuser are placed a large porosity and highly developed specific surface area 4 loading in the form of a floating granular material and a ripper immersed in it 5. The loading is limited from above and below by grids 6 and 7. On the outlet of the flow from the diffuser is a mesh spherical

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cue damper 8 speeds. The conical bottom of the tank is equipped with a valve 9.

The device works as follows.

The water to be purified is fed from above into the central pipe 2, from which it enters the socket of the diffuser 3, due to an increase in the top down sections of the flow velocity of the water being purified, respectively, decreases, while dispersion and alignment of the flow cko-flow within the limits of the increase-suppression of diffuse 8p This is facilitated by the resistance of the contact load 4 in motion of water, made of a highly developed specific surface area and a large porosity of filter material, for example measures of crushed clay expanded clay. In the layer of contact loading, the adhesion-sorption interaction of it with suspended substances in water occurs, some of which linger in the loading pores, and some pass through the loading layer with greater or smaller coarsening and at significantly reduced speeds enter the settling zone to form weighted filter. The uniform distribution of the jets over the cross sections in the contact loading and under the action and participation of the mesh extinguisher 8 eliminates the jetting and the formation of whirlpools in the settling zone, which allows a substantial increase in the cleaning effect. With the accumulation of contaminants in the contact load and in the sludge part

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the settling zone, the device is flushed through the valve 9 using the ripper 5 load. Limiting the layer of contact loading at the top and bottom of the grid 6 and 7 exclude the removal of its grains during operation and washing the device.

The efficiency of the device is to purify water using the adhesion-sorption properties of the contact load during the filtration process, to form a natural coagulation medium that coalesces suspended solids to increase their hydraulic size, which promotes sedimentation, and gradually and significantly reduces the flow rates. and in their alignment,

Claims (2)

1. A device for cleaning liquids, comprising a housing, a central supply pipe of the water to be purified, pipelines for discharging purified water and sludge, characterized in that, in order to improve the quality of cleaning by increasing the utilization rate of the settling zone, it is equipped with a diffuser connected to the supply pipe , a layer of contact loading in the form of a floating granular material placed between the upper and lower grids in the diffuser, a loading ripper and a mesh spherical damper fixed at the exit of the diffuser. 2. The device according to claim 1, characterized in that crushed sintered clay material is used as floating granular material. O1