RU155863U1 - DEVICE FOR CLEANING STRAIN WATER - Google Patents

Abstract

1. System for wastewater treatment, consisting of a filter with an absorbing charge, located in the underground space in the well on the support ring, which is a solid partition dividing the well into the upper compartment with untreated water and the lower one with purified water, characterized in that the upper and the lower compartment are interconnected by an overflow pipe located outside the well. 2. The wastewater treatment system according to claim 1, characterized in that the upper inlet of the overflow pipe is provided with an element that prevents debris from entering the overflow pipe.

Description

Technical field

The utility model relates to the field of treatment of storm sewage, namely, equipment for their treatment inside the sewer wells at the end of the storm sewer network in front of the control well.

State of the art

Known filter cartridge for the simultaneous cleaning of storm water from suspended and dissolved substances, a through pipe is built into the casing with the aim of emergency discharge when there is a large flow of wastewater, equipped with a supporting flange-ring made of low-pressure polyethylene (Utility Model Patent No. 138579, B01D 27 / 02, published on March 20, 2014).

The disadvantage of this technical solution is the limitation of the used cross-sectional area of the filter cartridge, and therefore the well, due to the location of the overflow pipe inside the filter cartridge itself, and therefore the well itself.

A device is known in the form of a filter cartridge located inside a sewer well on a support device made in the form of a ring hermetically connected to the walls of the well and having an opening for accommodating a filter cartridge in it, having a second hole in which an overflow conduit is sealed to the ring ( Utility Model Patent No. 150047, E03F 5/14, published January 27, 2015). This technical solution is the closest in combination of essential features to the claimed utility model and is taken as a prototype.

The disadvantage of this technical solution is also the limitation of the used cross-sectional area of the well due to the location of the overflow pipe inside the well itself on the support ring.

Utility Model Disclosure

The objective of the claimed utility model is to develop the design of a system for wastewater treatment that provides the best, among known, wastewater treatment.

The technical result is to increase the cleaning efficiency by increasing the area of the used section of the well due to the location of the overflow pipe outside the well itself.

The claimed technical result is achieved in that the wastewater treatment system consists of a filter with an absorbing charge located in the underground space in the well on the support ring, which is a solid partition dividing the well into the upper compartment with untreated water and the lower one with purified water, the upper and the lower compartment are interconnected by an overflow pipe located outside the well.

In one embodiment of the utility model, the upper inlet of the overflow line is provided with an element that prevents debris from entering the overflow line.

Brief Description of the Drawings

For a better understanding of the essence of the utility model, its description is further considered with the use of the accompanying drawing.

FIG. 1. General view in section of a concrete sewer well with a support ring installed inside it, a filter cartridge and an overflow pipe located outside this well.

It should be noted that the accompanying drawing illustrates only one of the most preferred embodiments of the utility model and therefore cannot be considered as limitations on the content of the utility model, which includes other embodiments.

Utility Model Implementation

In FIG. 1 is a schematic illustration of a device for accommodating a filter cartridge and the filter cartridge itself, installed in a concrete sewer well, where: 1 is a sewer well, 2 is a sewage grate, 3 is a manhole, 4 is a raw water supply pipe to the well, 5 is a support ring , 6 - filter cartridge, 7 - overflow pipe, 8 - pipe for the removal of purified water from the well.

The untreated storm sewage flows into the concrete well 1 through the storm water inlet 2 of the hatch 3 and / or through the pipeline 4 from the storm water inlets. A support ring 5 is placed inside the concrete well 1 to accommodate the filter cartridge 6, which includes an overflow pipe 7 located outside the well. The water purified by the filter cartridge 6 exits the concrete sewer well 1 through pipeline 8.

The operation of the device to accommodate the filter cartridge is as follows.

During low-intensity rains, the flow of water into the well 1 through the grate 2 (hatch 3) and / or pipe 4 does not exceed the nominal performance of the filter cartridge 6. Above the upper end of the filter cartridge 6 (as shown in Fig. 1) there is a certain layer of water that due to the difference in hydrostatic heights, it ensures the passage of water through the filter cartridge 6 and its purification. With an increase in the amount of wastewater entering the well 1 (for example, during heavy rainfall), the water level in the well 1 rises and reaches the overflow pipe 7. After this, the excess amount of relatively clean storm water begins to drain (during high-intensity rains, the main contaminants are washed off in the first portions rain, and the subsequent arrival of the main amount of water is cleaner), bypassing the filter cartridge 6 through pipeline 7 and stabilizing the water level in well 1.

After the rain intensity begins to decrease, an ever smaller amount of water is discharged through the overflow line 7, bypassing the filter cartridge 6. When the rain enters the phase of low intensity, the water level in the well drops, its discharge through the overflow line 7 stops, and the filter cartridge 6 continues work in normal mode.

Provided that the volumetric speed of the supplied untreated water remains unchanged (the prototype and the claimed utility model are compared), due to the fact that the cross-sectional area of the well used for water purification has increased (the overflow pipe is located outside the well, and therefore does not occupy part of the well’s cross-section ), then the linear velocity in the layer of the absorbing charge (calculated as the volume velocity relative to the cross-sectional area useful for water purification) decreases, which leads to an improvement in the quality of purification water (the lower the linear velocity, the longer the water contacts the absorbing charge at its standard height, and the increase in the contact time of untreated water with the absorbing charge leads to a deeper purification, as described, for example, in “Molokov MV, Shifrin VN Purification of surface runoff from the territories of cities and industrial sites. - M .: Stroyizdat, 1977 - 104 s ”).

Provided that the linear velocity in the layer of absorbing material remains unchanged (the prototype and the claimed utility model are compared), due to the fact that the cross-sectional area of the well used for water treatment has increased (the overflow pipe is located outside the well, and therefore does not occupy part of the cross-section of the well ), then the space velocity (calculated as the product of the linear velocity and the cross-sectional area useful for water purification) also increases, which leads to the possibility of cleaning more s in the well of the same dimensions.

Thus, it is obvious that the use of a system for wastewater treatment, consisting of an filter with an absorbing charge, located in the underground space in the well on the support ring, which is a solid partition dividing the well into the upper compartment with untreated water and the lower one with purified water, where the upper and lower compartments are interconnected by an overflow pipe located outside the well, which increases the efficiency of water treatment.

Providing the upper entrance of the overflow pipeline with an element that does not allow debris to enter the overflow pipeline does not allow it to be clogged with garbage, reducing the flow of water into it and thus leading to a decrease in throughput, and in the extreme case, the inability to use the overflow pipeline. An element that does not allow debris to penetrate into the overflow pipe can be made in the form of a downward bend of the connection of the overflow pipe to the well, and / or mesh, and / or grate at the connection of the overflow pipe to the well. Obtaining a technical result is ensured by the general properties of the element that does not allow debris to penetrate the overflow pipe, namely its ability to prevent clogging of the overflow pipe with garbage.

Claims (2)

1. System for wastewater treatment, consisting of a filter with an absorbing charge, located in the underground space in the well on the support ring, which is a solid partition dividing the well into the upper compartment with untreated water and the lower one with purified water, characterized in that the upper and the lower compartment are interconnected by an overflow pipe located outside the well. 2. The wastewater treatment system according to claim 1, characterized in that the upper inlet of the overflow pipe is provided with an element that prevents debris from entering the overflow pipe.

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