RU167226U1 - FILTER FOR MECHANICAL WASTE WATER TREATMENT - Google Patents

Abstract

A filter for mechanical treatment of wastewater in the form of a cartridge with permeable upper and lower ends and an impermeable side wall, containing a mesh located on the upper end of the cartridge and filled with fibrous filter material, characterized in that the fibrous filter material is packed in containers made of tubular knitwear weaving a smooth surface of rubber threads.

Description

The utility model relates to the field of wastewater treatment, namely, devices for wastewater treatment from suspended solids and oil products at the end of the sewer network in front of the control well.

Known replaceable filter element, hermetically attached to the inner surface of the cartridge, which is part of the cartridge hydrocyclone filter for cleaning liquids from suspended solids (Utility Model Patent RU 113678, IPC B04C 9/00, B01D 29/11, published on 02.27.2012 .).

The disadvantages of this filter are the complexity of the filter design, low efficiency of water purification from oil products, fast clogging and the inability to regenerate the filter.

A known mechanical cleaning filter with loading from fibrous material in the form of a capron, which is part of a device for the treatment of storm sewage (Utility Model Patent RU 140160, IPC C02F 1/00, published on 04/27/2014).

The disadvantage of this filter is the low efficiency of water purification from suspended solids and oil products.

A known filter of mechanical water treatment located in the underground space in a concrete well, loaded with mineral or synthetic fibers, with the possibility of supplying water for cleaning in the lower part of the mechanical filter (Utility Model Patent RU 38751, IPC C02F 1/00, published on 10.07 .2004).

The disadvantages of this filter are the low efficiency of water purification from suspended solids and oil products and the accumulation of suspended solids in the lower part of the mechanical filter.

The closest is a filter for mechanical treatment of wastewater in the form of a cartridge with permeable upper and lower ends and an impenetrable side wall, located in the underground space in a concrete well. The filter contains a mesh located at the upper end of the cartridge and is filled with fibrous filter material (Utility Model Patent RU 150518, IPC C02F 1/00, published on 02.20.2015).

The disadvantages of this filter are the low efficiency of water purification from suspended solids and oil products, their sedimentation on the filter and accumulation in an annular pocket between the wall of the well and the wall of the filter housing, as well as difficult filter regeneration.

The objective of the utility model is to develop the design of a mechanical filter for technical and technological purposes in water circulation.

The technical result is to increase the efficiency of the mechanical filter.

The technical result is achieved by using a filter for mechanical treatment of wastewater in the form of a cartridge with permeable upper and lower ends and an impenetrable side wall containing a mesh located on the upper end of the cartridge and filled with fibrous filter material, while the fibrous filter material is packed in containers made from tubular knitwear weaving a smooth surface of rubber threads.

The filter for mechanical wastewater treatment is included in the filter system for water treatment, consisting of filters for mechanical and sorption treatment, located in the underground space in separate wells connected by pipelines.

The filter for mechanical wastewater treatment is located in the underground space in a separate well, connected by pipelines with the possibility of supplying wastewater for treatment to the upper part of the mechanical treatment filter and discharge from the bottom of the filter in the direction of movement of the water.

A mesh is located at the upper end of the filter for mechanical treatment of wastewater in the form of a cartridge, and a fibrous filter material filling the filter for mechanical treatment of wastewater is packed in containers made of tubular knitwear by weaving a smooth surface of rubber threads.

Due to the extremely dense porous structure, the tubular knitwear weaves a smooth surface of rubber threads, provides an increase in the formation of air bubbles when the filter is wetted with water when it is installed in the well and put into operation, which increases the hydrophobicity of the filter material and, accordingly, its capacity for oil products, which also increases and due to the execution of knitwear from rubber threads. In addition, the extremely porous structure of elastic tubular knitwear provides better filtration and retention of fine particles of suspended solids.

Tubular knitwear by weaving a smooth surface of rubber threads allows to provide the necessary permeability during the passage of waste water and provides extensibility (due to the variable porosity of the knitwear) along the length and width of the knitwear, for the possibility of regeneration and reuse.

In FIG. 1 shows a general view of a filter for mechanical cleaning in a system of filters placed in underground concrete wells, FIG. 2 shows a graphical representation of tubular knitwear by weaving surface.

The filter for mechanical wastewater treatment 1 is included in the filter system for water treatment, consisting of a storage tank (well) 2, a mechanical filter 1 for cleaning, a sorption filter 3 for cleaning and a control well 4 located in the underground space in separate wells connected by pipelines 5.

The filter for mechanical treatment of wastewater 1 is made in the form of a cartridge with a water-permeable upper end 6 and a lower end 7 and an impenetrable side wall 8. At the upper end 6 of the cartridge 1 there is a mesh 9. The inner space of the cartridge 1 is filled with a fibrous filter material 10, packed in containers 11 made of tubular knitwear, weaving a smooth surface of rubber threads.

Tubular knitwear by weaving a smooth surface is obtained by knitting a rubber thread on a round single-cylinder knitting machine MS-5 of a large diameter of 22 class with a depth of cooler on the main planes of 0.7-2.0 mm with a tension of a rubber thread of 2.5-3.0 N.

Finished containers 11 of elastic tubular knitwear by weaving a smooth surface of rubber threads are filled with fibrous filter material 10 and placed in the inner space of the cartridge 1.

The utility model works as follows.

Water from the sewer network flows into storage tank 2, from where it flows through pipeline 5 (due to the difference in hydrostatic heights) to an adjacent well with a mechanical filter 1. Moreover, the water levels in both wells are balanced according to the law of communicating vessels. Further, passing from top to bottom through a mechanical filter 1, water enters the lower part of the well with a mechanical filter 1, and then through a pipe 5 to the lower part of the well where the sorption filter 3 is located. Passing the sorption cleaning filter 3 from the bottom up and leaving the filter 3, discharged through pipeline 5 into the control well 4, after which it is discharged into the sewer network or reservoir.

When raw sewage is fed from top to bottom through a mechanical cleaning filter by tubular knitting, the surface of rubber threads and the fibrous filter material located in it are entrained, small particles of suspended solids and microdrops of emulsified oil products are retained.

In addition, the use of tubular jersey containers by weaving a smooth surface of rubber threads facilitates the process of replacing used fibrous filter material.

Tubular knitwear by weaving a smooth surface of rubber threads is easily regenerated: the knitwear is stretched in the longitudinal and transverse directions (as a result of which the pore size increases) and washed with a reverse flow of liquid or gas from mechanical pollutants. To regenerate the rubber thread containers are squeezed on the press. When the rubber thread is depleted, the containers are replaced.

Thus, the use of a filter for mechanical treatment of wastewater in the form of a cartridge with permeable upper and lower ends and an impermeable side wall containing a mesh located on the upper end of the cartridge and filled with fibrous filter material packed in containers made of tubular knitwear by weaving rubber threads, provides an increase in the efficiency of the mechanical filter.

Claims (1)

A filter for mechanical treatment of wastewater in the form of a cartridge with permeable upper and lower ends and an impermeable side wall, containing a mesh located on the upper end of the cartridge and filled with fibrous filter material, characterized in that the fibrous filter material is packed in containers made of tubular knitwear weaving a smooth surface of rubber threads.

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