RU187839U1 - SEWAGE TREATMENT PLANT - Google Patents

Abstract

Wastewater treatment plant refers to the treatment of rainwater wastewater from oil products, oils, coarse and fine contaminants and can be used for wastewater treatment at car parks, gas stations, industrial enterprises, car enterprises, fuel depots, along motorways, in garages, and others objects. The proposed device for wastewater treatment contains a housing with a supply and drain pipelines, a coarse cleaning chamber, a drainage block, a filter and a coalescence filter, consisting of a block of profiled oleophilic sheets with input, output, upper and lower windows, and a carbon membrane, while the input lower the hole of the drainage block communicates with the coarse cleaning chamber, the outlet upper hole of the drainage block communicates with the inlet window of the coalescence filter, the outlet window of the coalescence filter communicates with the coal meme brane, communicating with the filter, which is a coal purification filter, the upper window of the coalescence filter is configured to remove pop-up contaminants, and the lower window of the coalescence filter is configured to remove sedimentary contaminants.

Description

Wastewater treatment plant refers to the treatment of rainwater wastewater from oil products, oils, coarse and fine contaminants and can be used for wastewater treatment at car parks, gas stations, industrial enterprises, car enterprises, fuel depots, along motorways, in garages, and others objects.

In the patent for utility model of the Russian Federation No. 45728, publ. 05/27/2005, a device for treating surface storm and melt water containing a chamber for trapping large dispersed impurities, a fine filter for water purification, an oxidation-reduction chamber filled with polystyrene foam granules is disclosed, and sorbent filters are installed in series at the final stage for fine water purification based on sorption-active carbon fiber material to remove dissolved anions and cations.

Surface storm and melt water enter the chamber for trapping large dispersed impurities, in which the bulk of large suspended particles and oil products sorbed by them are retained. In the redox chamber, petroleum products are deposited on polystyrene foam granules. At the final stage of purification, sorbent filters trap nitrogen-containing pesticides and other organic impurities.

Also known, described in the patent for utility model of the Russian Federation No. 129093, publ. 06/20/2013, installation for the treatment of wastewater from petroleum products made of a housing divided by vertical partitions into communicating chambers, and containing a pipe for supplying purified water and a pipe for removing purified water installed in the upper parts of the end walls of the first and last communicating chambers, respectively, a coarse filter , a post-treatment sorption filter placed in a chamber containing a purified water outlet pipe. In the first chamber along the movement of the water to be cleaned, a vertical or oblique partition is installed, the coarse filter is made in the form of a ∩-shaped pipeline, the inlet of which is located inside a hollow cylinder installed in one of the chambers, and the outlet through the connecting pipes and funnel is connected to an expander mounted vertically in the chamber following the movement of the purified water. Throats are formed in the upper part of the body, on the flanges of which inspection wells are fixed, and the coarse filter is equipped with an air tube installed in the upper part of the bend and having an outlet to one of the inspection wells. In each of the two adjacent chambers, respectively containing a ∩-shaped pipeline and a coarse filter expander, in their upper part are oil collecting funnels for pumping pop-up oil products, connected to each other by a pipeline passed through a vertical partition installed between the chambers, both chambers contain a line of closed pumping of sediment, made in the form of perforated pipelines located in the lower part of the chambers and in communication with the inspection well.

Closest to the proposed device is, taken as a prototype, the known device for wastewater treatment described in patent 115349, publ. 04/27/2012, comprising a housing with bulk and drain nozzles, a coarse cleaning chamber, a filter, a block of profiled oleophobic sheets with inlet, outlet, upper and lower nozzles and a thin-layer deposition unit with an input lower and output upper holes, the input lower opening of a thin-layer deposition unit communicates with the coarse cleaning chamber, the upper outlet of the thin-layer deposition unit communicates with the inlet of the profiled oleophobic sheet unit, the outlet of the profiled oleophobic block Isstov communicates with the filter, the upper nozzle is configured to output pop-up contaminants, the lower nozzle is configured to withdraw sedimentary contaminants.

The device adopted as a prototype does not provide high quality wastewater treatment from oil products, fats, oils, other sticky substances and finely dispersed contaminants due to vortices arising due to the asymmetric arrangement of the protrusions of the profiled oleophobic sheets. In addition, the device is inconvenient in operation due to the rapid clogging of the filter material and its frequent replacement. Also, the device has insufficient performance due to the fact that the branch pipes of the block of profiled oleophobic sheets have a circular cross section.

The objective of the utility models is to create a device for wastewater treatment, which allows to ensure high quality wastewater treatment from oil products, fats, oils, other sticky substances and fine contaminants, as well as to increase the productivity of the installation.

The technical result that can be obtained by implementing the inventive utility model is to increase the degree of wastewater treatment and increase the productivity of the installation.

The problem is solved, and the specified technical result is achieved by the proposed installation for wastewater treatment.

A wastewater treatment device comprising:

case with supply and drain pipelines,

rough chamber,

drainage block and filter, characterized in that it contains

coalescence filter, consisting of a block of profiled oleophilic sheets with input, output, upper and lower windows, and a carbon membrane,

wherein the inlet bottom hole of the drainage unit communicates with the coarse cleaning chamber, the outlet upper hole of the drainage block communicates with the inlet window of the coalescent filter,

the output window of the coalescence filter communicates with the carbon membrane in communication with the filter, which is a carbon purification filter,

the upper window of the coalescence filter is configured to output pop-up contaminants, and the lower window of the coalescence filter is configured to display sedimentary contaminants.

The casing of the device is provided with a polymer coating on its inside, which increases its service life.

Partitions are made in the case, conditionally dividing it into cameras. The first camera is a coarse cleaning camera. This is followed by a thin-layer deposition chamber in which the drainage block is located. Next - the fine-cleaning chamber, in which a coalescent filter is made, and closes the after-treatment chamber, where the carbon membrane and filter are located. If necessary, the device may include a collection chamber for purified water.

The rough cleaning chamber is carried out with fencing dividing partitions, due to which the deposition of large mechanical particles increases, and also contains an overflow system made in the form of a ∩-shaped pipeline. The inlet of the overflow system is located in the lower part of the chamber, and the outlet is equipped with a cone-shaped expander. The expander helps to reduce the overflow rate, which leads to better agglomeration of fine particles. In the upper bend of the pipeline, a drainage hole is made to bleed air and exit pollutants that float to the surface.

Additionally, the coarse cleaning chamber can be equipped with a pollution level sensor that monitors the level of accumulated film of oil products. Upon reaching the maximum acceptable level, the sensor gives a signal. In this case, it is necessary to remove accumulated oil products.

The thin block deposition drainage block is made of vertical plates arranged at an angle with an increased deposition area of mechanical impurities. Particles, lingering on the plates, coarsen and flow down.

The coalescence filter is made in the form of a metal frame into which trapezoidal shaped oleophilic sheets are inserted. The block contains input, output, upper and lower windows. The windows have a larger section of the inlet and outlet of water from the unit compared to standard nozzles, which significantly increases the performance of water treatment.

Sheets are made of polypropylene, which has oleophilic properties. Agglomeration of petroleum products occurs directly on the surface of the sheet with their subsequent ascent through holes in the sheets. Polypropylene is characterized by high strength characteristics, no toxicity, resistance to abrasion and ultraviolet radiation, as well as the possibility of use at temperatures from -20 to 100 ° C.

The sheets across the entire width contain protrusions and depressions of a trapezoidal shape, which ensures the same speed of the laminar irrotational fluid flow, which is created due to protrusions and depressions along the entire width of the sheet and the gap between the sheets. Due to the trapezoidal shape of the protrusions and depressions, the length of the liquid path with the remains of oil products along the sheets increases. At the top of the trapezoidal protrusion, a straight section is made with an opening for the exit of oil particles through the upper window of the block. The rectilinear section of the trapezoidal protrusion allows you to increase the length of the fluid, thereby improving the adhesion of pop-up contaminants to the aggregates, which leads to easier separation of oil particles from the liquid. This shape of the sheet guarantees the absence of turbulence and an improvement in the degree of cleaning.

The hollows of the sheets also have a trapezoidal shape with straight sections, on which holes are made, through which fine contaminants are discharged and settle in the lower part of the body.

The water path is a sinusoidal curve, which allows the passage of liquid in the convex part of the sheet to float through the hole to the remnants of the oil fraction, and when the concave part of the sheet passes through the hole, the suspended particles are deposited on the bottom of the chamber.

The carbon membrane connected to the exit window of the block of oleophilic profiled sheets serves to adsorb microparticles of oil products.

The carbon filter is made of cylindrical shape and consists of two layers of rolled up stainless mesh, between which carbon fabric is placed. Coal fabric is an adsorbent of microparticles of oil products and suspended solids that are not visible to the naked eye. In addition, coal fabric is well utilized without harming the environment.

The upper part of the filter is connected to a drain pipe that discharges purified water.

Additionally, the device can be equipped with a collection chamber for purified water. Water enters the chamber after a cleaning cycle, which is discharged by the pump as the chamber fills.

In the lower part of the casing, mainly in the coarse cleaning chamber and the thin-layer deposition chamber, a perforated closed pumping line of sludge is carried out, which is removed by agitation followed by pumping.

For ease of use, a non-perforated pipeline for closed pumping of water from the chamber was laid at the bottom of the after-treatment chamber, which is necessary for pumping water during maintenance of the installation.

For ease of operation, the installation may contain telescopic wells that allow you to adjust the depth of the installation and simplify its installation. The wells are equipped with insulated covers. The well, which is located above the coarse cleaning chamber, contains a pipe through which the unit communicates with the environment. The pipe is equipped with a safety reversible pneumatic valve, which is designed to control the vapor pressure in the installation space. The well, which is located above the fine-purification chamber, communicates with the perforated pipelines of closed pumping sludge from the coarse purification and thin-layer deposition chambers.

A particular embodiment of the utility model, without limiting the scope of the claimed claims, is illustrated in the drawings, which show:

FIG. 1 is a front view in section of a device for wastewater treatment;

FIG. 2 is a front view in section of a block of profiled oleophilic sheets;

FIG. 3 is a top view of profiled oleophilic sheets;

FIG. 4 is a transverse section aa of the profiled oleophilic sheets along the protrusions,

FIG. 5 is a transverse section BB of profiled oleophilic sheets along the depressions;

A device for wastewater treatment, contains a housing 1 with a supply pipe 2 and a drain pipe 3. The coarse treatment chamber 4 has fencing dividing partitions 5, and also contains an overflow system 6 made in the form of a ∩-shaped pipeline. The inlet of the overflow system is located in the lower part of the chamber 4, and the outlet is in the thin-layer deposition chamber 40 and is equipped with a cone-shaped expander 7. In the upper bend of the pipeline, a drainage hole 8 is made. Also, the rough cleaning chamber contains a pollution level sensor 9.

The drainage block 10 has an inlet 11 and an outlet 12. The coalescence filter 13 consists of a block of profiled oleophilic sheets 14 and has four windows — an inlet 15, an outlet 16, an upper 17 and a lower 18. The coalescence filter 13 communicates with a carbon membrane 19 that communicates with carbon filter 20.

The coalescent block 13 is made in the form of a metal frame into which trapezoidal shaped oleophilic sheets 14 are inserted.

The sheets 14 contain protrusions 21 and trapezoidal depressions 24, which ensures the same speed of the laminar irrotational fluid flow, which is created due to the protrusions 21 and depressions 24 over the entire width of the sheet and a gap 22 between the sheets 14 along the entire length of the sheet. Due to the trapezoidal shape, the length of the liquid path with the remains of oil products along sheet 14 is increased. At the top of the protrusion 21, a straight section with an opening 23 is made for the exit of particles of oil products through the upper window of the block. The rectilinear section allows you to increase the length of the fluid, thereby improving the adhesion of pop-up contaminants into the aggregates, which leads to easier separation of oil particles from the liquid. This shape of the sheet guarantees the absence of turbulence and an improvement in the degree of cleaning.

The depressions 24 of the sheets 14 also have openings 25 through which fine contaminants are removed and settle in the lower part of the housing.

The carbon membrane 19, connected to the output window of the block of oleophilic profiled sheets, serves to adsorb microparticles of oil products.

The filter of coal post-treatment 20 is made of a cylindrical shape. The upper part of the filter 20 is connected to the drain pipe 3.

In addition, the device is equipped with a chamber for collecting purified water 26. Water that has passed a cleaning cycle enters the chamber, which is discharged by the pump 27 as the chamber is filled.

The device contains partitions 28, 29, 30 and 31, dividing the device into cameras.

In the lower part of the housing 1 there are perforated pipelines for closed pumping of sludge 32 and 33. At the bottom of the after-treatment chamber an unperforated pipe 34 for closed pumping of water from the chamber is laid.

For ease of operation, the installation contains telescopic wells 35, 36, 37 and 38, equipped with insulated covers 39. The well 35, located above the rough cleaning chamber 4 contains a pipe 41 through which the installation communicates with the environment. The pipe 41 is equipped with a safety reversible pneumatic valve 42, which is designed to control the vapor pressure in the installation space.

The claimed installation works as follows.

Wastewater is supplied through a supply pipe 2 to a coarse cleaning chamber 4. In a coarse cleaning chamber 4, heavy impurities settle, and light impurities float. Then, washing the fenders separating partitions 5, the water enters the overflow system 6, made in the form of a ∩-shaped pipeline. During the movement of water through the overflow system 6, oil products, fats, oils and other contaminants of positive buoyancy are delayed in the upper bend, exit through the drainage hole 8 and float to the upper part of the housing 1. Next, the water exits the overflow system 6 through the conical expander 7, with this passing through the conical expander 7, the flow rate of water is significantly reduced. Then, the water enters through the inlet 11 to the drainage unit 10 and passing through its plates, larger particles are separated from the water to be treated and deposited on the plates with a higher deposition area, agglomerate and flow down to the lower part of the installation body, and the pop-up particles reach the surface of the upper boundary drains through the outlet 12.

After the drainage block 10, leaving through its outlet 12, water through the inlet window 15 enters the coalescent filter 13 and passes through its trapezoidal oleophilic sheets 14, where the wastewater is finely cleaned.

In the coalescence filter 13, the purified water flows in a laminar flow between the oleophilic sheets 14, flowing around the protrusions 21 and depressions 24. In this case, the emerging contaminants are retained under the protrusions 21, are coupled into the aggregates and float to the upper part of the housing 1 through the upper holes 23 and the upper window 17. Settling contaminants are retained in the depressions 24 and settle into the lower part of the housing 1 through the lower openings 25 and the lower window 18. At the same time, oil products, fats, oils, and other sticky and finely dispersed contaminants adhere to oleophilic sheets 14, large appear and pop up.

The purified water leaves the coalescence filter 13 through the window 16 and enters the carbon membrane 19, and then passes through the coal purification filter 20 where the final purification of wastes from suspended particles and oil products. Next, the water through the drain pipe 3 enters the chamber 26, as it is filled, the pump 27 drains the water from the installation.

Perforated pipelines 32 and 33 of closed sludge pumping allow sludge to be pumped out using a suction pump (not shown in the figure) through the inspection well 36.

Claims (13)

1. A device for wastewater treatment, comprising a housing with inlet and outlet pipelines, a coarse cleaning chamber, a drainage block and a filter, characterized in that it comprises a coalescent filter consisting of a block of profiled oleophilic sheets with an input, output, upper and lower windows and a carbon membrane, while the inlet bottom hole of the drainage unit communicates with the coarse cleaning chamber, the outlet top hole of the drainage block communicates with the inlet window of the coalescent filter, the outlet window of the koal percentage of the filter membrane is in communication with the coal, in communication with the filter which is a filter after-treatment of the coal, the upper window coalescing filter configured to output a pop-up impurities, and the lower window coalescence filter adapted to output deposited contaminants. 2. The device according to claim 1, characterized in that the housing of the device is provided with a polymer coating on its inside. 3. The device according to p. 1, characterized in that the rough cleaning chamber is made with fenders dividing partitions and contains an overflow system made in the form of a pipeline

-shaped. 4. The device according to claim 4, characterized in that the inlet of the overflow system is located in the lower part of the rough cleaning chamber, and the outlet is provided with a conical expander. 5. The device according to claim 1, characterized in that the coalescent filter is made in the form of a metal frame into which profiled oleophilic sheets are inserted. 6. The device according to claim 1, characterized in that the profiled oleophilic sheets are made with hollows and trapezoidal protrusions along the entire width of the sheet, while the protrusions and hollows contain straight sections. 7. The device according to p. 6, characterized in that the straight sections of the trapezoidal protrusions and depressions contain holes for the passage of pop-up and settling contaminants. 8. The device according to p. 7, characterized in that the profiled oleophilic sheets are made of polypropylene. 9. The device according to p. 1, characterized in that the carbon filter is made of cylindrical shape and consists of two layers of rolled up stainless mesh, between which carbon fabric is placed. 10. The device according to p. 1, characterized in that it further comprises a collection chamber for purified water. 11. The device according to p. 1, characterized in that it further comprises a perforated pipe for pumping out sediment in the lower part of the housing. 12. The device according to claim 1, characterized in that it further comprises an unperforated pipe for pumping water in the lower part of the housing. 13. The device according to p. 1, characterized in that it further comprises at least one telescopic well.

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