RU156893U1 - WASTE WATER TREATMENT SYSTEM - Google Patents

Abstract

1. The wastewater treatment system, consisting of a well with a cylindrical filter cartridge, which is equipped with a flange and lifting eyes, is filled with an absorbing load located in the underground space, characterized in that before and after the well with a filter cartridge are independent wells that are connected by overflow by a pipeline in such a way that they allow a part of the water flow rate to be passed through this pipeline, which is excessive in relation to the nominal capacity of the filter cartridge. 2. The wastewater treatment system according to claim 1, characterized in that the inlet of the overflow pipe is provided with an element that does not allow debris to penetrate into the overflow pipe. The wastewater treatment system according to claim 1 or 2, characterized in that the well with an overflow pipe, located in front of the first well with a filter, is equipped with a device that allows you to adjust the volume and / or flow of waste water discharged without overflow treatment the pipeline.

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 the limitation of the used cross-sectional area of the well due to the location of the overflow pipe inside the well 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, as a result of the removal of the overflow pipe outside the well with filters.

The claimed technical result is achieved by the fact that the wastewater treatment system, consisting of a well with a cylindrical filter cartridge, which is equipped with a flange and lifting eyes, is filled with an absorbing load located in the underground space, characterized in that before and after the well with a filter cartridge are located independent wells that are connected by an overflow pipe in such a way that they allow a portion of the water flow that is redundant to the nominal Flax performance filter cartridge.

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

In another embodiment of the utility model, a well with an overflow pipe located in front of the first, along the direction of the water, well with a filter is equipped with a device that allows you to adjust the volume and / or flow of waste water discharged without treatment through the overflow pipe.

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 drawings.

FIG. 1. General view in section of a concrete sewer well with a filter cartridge installed inside it and wells located before and after it, connected by an overflow pipe.

FIG. 2. Schematic illustration of a system for wastewater treatment, top view.

It should be noted that the accompanying drawings illustrate 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 system for wastewater treatment, where: 1 - a storage well, 2 - a well with a filter, 3 - an outlet well, 4 - an overflow pipe, 5 - a pipeline for supplying untreated water to a storage well, 6 - a pipeline for supplying untreated water to a well with a filter, 7 - a pipeline for discharging purified water from a well with a filter, 8 - a filter cartridge, 9 - a pipeline for discharging purified water from an outlet well.

Untreated storm sewage enters the concrete well 1 through line 5. From here, it enters the well 2 through line 6. A filter cartridge 8 is placed inside the concrete well 2 for water purification. The water purified by the filter cartridge 8 leaves the concrete sewer well 2 through the pipeline 7 to the outlet well 3 and is then discharged through the pipeline 9.

During low-intensity rains, water flow into well 1, and from it through pipe 6 to well 2, does not exceed the nominal performance of the filter cartridge 8. Above the upper end of the filter cartridge 8 (as shown in Fig. 1) there is a certain layer of water, which, due to the difference hydrostatic heights ensures the passage of water through the filter cartridge 8 and its purification with a given (standard) performance.

With an increase in the amount of wastewater entering the well 1, and from it through the pipe 6 to the well 2 (for example, during heavy rainfall), the water level in the well 1 rises and reaches the overflow pipe 4. After that, the excess amount of conditionally clean draining through the pipe 4 begins. storm water into well 3 (during high-intensity rains, the main contaminants are washed off by the first portions of rain, and the subsequent arrival of the main amount of water is cleaner), bypassing filter cartridge 8.

After the rain intensity begins to decrease, an ever smaller amount of water is discharged through overflow line 4, bypassing filter cartridge 8. When rain enters the low-intensity phase, the water level in the well drops, its discharge through overflow line 4 stops, and filter cartridge 8 continues work in normal mode.

Provided that the volumetric flow rate of the supplied untreated water remains unchanged (the prototype and the claimed utility model are compared), since the cross-sectional area of the well used for water purification has increased (the overflow pipe does not occupy part of the cross-section of the well), then the linear velocity in the layer absorbing load (calculated as the volumetric velocity, referred to the cross-sectional area useful for water treatment) is reduced, which leads to an improvement in the quality of water treatment (the lower the linear velocity, longer contact water with the absorbing charge, at its standard height, and an increase in the contact time of untreated water with the absorbing charge leads to a deeper treatment, 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 p. ").

Provided that the linear velocity in the layer of absorbing material remains unchanged (the prototype and the claimed utility model are compared), since the cross-sectional area of the well used for water purification has increased (the overflow pipe does not occupy part of the cross-section of the well), then the volume velocity (calculated as the product of linear velocity and the cross-sectional area useful for water purification) also increases, which leads to the possibility of purifying more water in a well of the same size.

As the absorbing load, we use materials currently known that are commercially available and used for filtering liquid media: modified and / or unmodified woven and / or non-woven filter materials (geotextiles, dornite, sintepon, porous polypropylene materials (by irrigation and filter plastic), fabrics for filtering liquid media (cotton, polypropylene, kapron, coal), fiberglass, megasorb, febroil and others), activated carbons (wood, coconut, coal and other activir bath coals, for example: BAU-A, DAK, BAU, BOU, AG-3, AG-3P, AQUASORB, ABG, AGM, SKD, KAUSORB, SORBER, DAUSORB, Silcarbon, NWC, MAU and others), natural and / or zeolites or synthetic, ion-exchange resins, sulfonates, ion-exchange and / or carbon fabrics), carbonate and / or oxide granular and / or bulk materials. The described technical result is provided with the general characteristics of these particular forms of materials, since any absorbing material works worse when the linear velocity of the water flow passing through it increases, since the contact time of water with the cleaning material in this case is reduced.

Thus, it is obvious that the use of a wastewater treatment system, consisting of a well with a cylindrical filter cartridge, which is equipped with a flange and lifting eyes, is filled with an absorbing load located in the underground space, characterized in that before and after the well with a filter cartridge independent wells, which are connected by an overflow pipe in such a way that they allow a part of the water flow, which is excessive in relation to the nominal output, to pass through this pipe water filter cartridge, increases the efficiency of water purification.

Providing the entry 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. The element that does not allow debris to penetrate into the overflow pipe can be made in the form of a bend down part of the pipe, and / or mesh, and / or grating. 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.

The supply of a well with an overflow pipe, located in front of the first well in the direction of the water, with a filter device that allows you to adjust the volume and / or flow of waste water discharged without treatment through the overflow pipe, allows you to more accurately cut off a conditionally clean part of the drain without supplying it to purification, thereby reducing the amount of effluent supplied to the purification by a filter cartridge, and increasing the total amount of effluent that the wastewater treatment system can pass through.

Claims (3)

1. The wastewater treatment system, consisting of a well with a cylindrical filter cartridge, which is equipped with a flange and lifting eyes, is filled with an absorbing load located in the underground space, characterized in that before and after the well with a filter cartridge are independent wells that are connected by overflow by a pipeline in such a way that they allow a part of the water flow rate to be passed through this pipeline, which is excessive in relation to the nominal performance of the filter cartridge. 2. The wastewater treatment system according to claim 1, characterized in that the inlet of the overflow pipe is provided with an element that does not allow debris to penetrate into the overflow pipe. 3. The wastewater treatment system according to claim 1 or 2, characterized in that the well with an overflow pipe located in front of the first well with a filter along with the flow of water is equipped with a device that allows you to adjust the volume and / or flow of wastewater discharged without treatment overflow pipe.

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