CN218709823U - Oily wastewater treatment system - Google Patents
Oily wastewater treatment system Download PDFInfo
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- CN218709823U CN218709823U CN202223105157.XU CN202223105157U CN218709823U CN 218709823 U CN218709823 U CN 218709823U CN 202223105157 U CN202223105157 U CN 202223105157U CN 218709823 U CN218709823 U CN 218709823U
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Abstract
The utility model discloses an oily wastewater treatment system, which relates to the field of water treatment and comprises a lifting well, an oil separation sedimentation tank, an adjusting tank, a dosing device, a combined air flotation device, an air flotation slag tank, a middle water tank, an accident tank, a walnut shell filter, a sludge treatment device and a deodorization device, wherein the lifting well comprises a grid; the oil separation sedimentation tank is used for receiving the wastewater at the rear end of the lifting well and comprises a floating oil absorption machine; the adjusting tank is used for receiving the wastewater at the rear end of the oil separation sedimentation tank; the middle water tank is used for receiving the waste water at the rear end of the combined air floatation device; the accident pool comprises a water inlet pipeline for receiving wastewater of the regulating pool or wastewater of the intermediate pool and a water outlet pipeline for conveying the internal wastewater to the regulating pool. The utility model discloses oily effluent disposal system can be when treatment facility breaks down, through accident pond waste water of keeping in, makes treatment facility break away from the waste water environment, and convenient maintenance is changed more, and then hoisting system fault treatment efficiency.
Description
Technical Field
The utility model relates to a water treatment field, concretely relates to oily effluent disposal system.
Background
Oily wastewater discharged from breeding and production projects is difficult to reach the specified discharge standard, so the oily wastewater can be discharged outwards after being treated by water. At present, an oily wastewater treatment system mainly comprises a grating, a regulating reservoir, a sedimentation tank, a filter and a deodorization device, and the components sequentially carry out processes such as filtering, water quality and quantity regulation, sedimentation, deodorization and the like on oily wastewater, so that the finally treated wastewater and waste gas meet the emission standard. Wherein, parts such as grid, equalizing basin, sedimentation tank and middle pond are carried waste water through the elevator pump in order to accelerate the waste water transfer meeting, still are equipped with other treatment facility that are used for technology simultaneously, and there are damage and accident in elevator pump and treatment facility in the use unavoidably, and when the accident appears under operating condition, these treatment facility are arranged in the waste water environment, are difficult to the maintenance.
The inventor is realizing the technical scheme of the utility model, finds that the prior oily wastewater treatment system has the following technical problems:
the treatment equipment of the existing oily wastewater treatment system is difficult to maintain when an accident occurs in the treatment process, and the recovery treatment speed of the system is influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides an oily effluent disposal system solves the problem that current oily effluent disposal system is difficult to the maintenance when the accident appears in the processing procedure at least, can improve system's fault repair speed.
(II) technical scheme
In order to solve the technical problem, the utility model provides a following technical scheme:
an oil-containing wastewater treatment system comprises an elevator shaft, wherein the elevator shaft comprises a grating;
the oil separation sedimentation tank is used for receiving the wastewater at the rear end of the lifting well and comprises a floating oil absorption machine;
the adjusting tank is used for receiving the wastewater at the rear end of the oil separation sedimentation tank;
the dosing device comprises a pipeline mixer for receiving liquid medicine and wastewater at the rear end of the regulating tank;
the combined air flotation device is connected with the pipeline mixer;
the air floatation slag pool is used for receiving solid residues at the rear end of the combined air floatation device;
the middle water tank is used for receiving the wastewater at the rear end of the combined air floating device;
the accident pool comprises a water inlet pipeline for receiving the wastewater of the regulating pool or the wastewater of the middle pool and a water outlet pipeline for conveying the internal wastewater to the regulating pool;
the walnut shell filter is used for receiving and filtering the wastewater at the rear end of the intermediate water tank;
the sludge treatment device is used for receiving the sludge at the rear end of the air floatation slag pool;
and the deodorizing device is used for receiving the gas in the lifting well, the adjusting tank, the combined air floatation device, the air floatation slag tank, the intermediate water tank and the sludge treatment device and deodorizing the gas.
In a further arrangement, the water inlet pipeline and the water outlet pipeline comprise accident pumps which are positioned at the bottoms of the regulating tank and the accident pumps and are used for providing power for conveying sewage.
In a further arrangement scheme, the device also comprises an aeration blower, and the aeration blower is used for aerating the regulating reservoir.
In a further scheme of setting up, the charge device still includes PAC medicine equipment and PAM medicine equipment and the COD appearance that is located the pipeline mixer intensity that is connected with the pipeline mixer.
In a further set scheme, the walnut shell filter comprises a filter main body connected with the middle water tank and the accident tank, a backwashing pump connected with the filter main body and a backwashing water tank connected with the backwashing pump, and the filter main body comprises a water outlet and a municipal pipe orifice.
In the further scheme that sets up, sludge treatment equipment includes the sludge concentration tank of being connected with the air supporting sediment pond, is used for exporting sludge screw pump in the sludge concentration tank, is used for receiving mud screw pump output mud fold spiral shell machine and is used for to fold the PAM doser of sending medicine in the spiral shell machine.
(III) advantageous effects
Compared with the prior art, the utility model provides an oily effluent disposal system possesses following beneficial effect:
when the oily wastewater treatment system works, wastewater automatically flows into a lifting well from a septic tank, enters an oil separation sedimentation tank after larger coarse and foreign particles and suspended matters are intercepted by a grid, is precipitated in the oil separation sedimentation tank to separate oil from water, is collected by an oil slick absorption machine, enters an adjusting tank, is subjected to water quality and water quantity adjustment in the adjusting tank, and buffers peak values; lifting the wastewater in the regulating tank by a pump, feeding the wastewater into a dosing device, and adding a flocculating agent by the dosing device to generate a flocculation precipitation reaction; the sewage after flocculation precipitation automatically flows into the combined air flotation device, and floccules and silt flocculated in the water are precipitated through natural precipitation, so that the purpose of primarily purifying the water quality is achieved. The sewage after sedimentation automatically flows into an air-float slag tank, micro bubbles are released from the sewage in the air-float slag tank through a releaser, floaters such as flocculate, food residue, excrement residue and the like float up to the surface of the sewage, and the sewage is collected into a sludge treatment device through a residue scraping system; the sewage in the air floatation slag tank automatically flows into the intermediate water tank, and is buffered. The effluent of the middle water tank enters a walnut shell filter, carbon, nitrogen and phosphorus biological treatment is synchronously carried out, organic pollutants in wastewater are further degraded, nitrogen and phosphorus are synchronously removed, the water quality is purified again, and the filtered water can be discharged into municipal pipelines or drainage ditches. And the gas in the lifting well, the adjusting tank, the combined air flotation device, the air flotation slag tank, the intermediate water tank and the sludge treatment device enters the deodorization device, the gas is subjected to deodorization treatment through the deodorization device, and the gas is discharged after reaching the standard. Thus realizing the treatment of the oily wastewater. Wherein, when treatment facility broke down, waste water flow direction to equalizing basin or middle pond earlier, and rethread water inlet pipe discharges into and temporarily stores in the accident pond, and after equipment maintenance or change, waste water in the accident pond sends waste water back to equalizing basin or middle pond through outlet pipe way again and continues to handle, so can make treatment facility break away from the waste water environment, and more convenient maintenance is changed, and then hoisting system fault treatment efficiency.
Drawings
FIG. 1 is a schematic view of an oily wastewater treatment system in an example;
FIG. 2 is a schematic diagram of the connection of the accident pool with the adjustment pool and the intermediate pool in the embodiment.
Reference numerals are as follows: the device comprises a lifting well 1, an oil separation sedimentation tank 2, an adjusting tank 3, a dosing device 4, a combined air flotation device 5, an air flotation slag tank 6, a middle water tank 7, an accident tank 8, a walnut shell filter 9, a sludge treatment device 10, a deodorization device 11, an aeration blower 12, an oil slick absorber 20, a pipeline mixer 40, dosing equipment 41, PAM dosing equipment 42, a COD (chemical oxygen demand) instrument 43, a water inlet pipeline 81, a water inlet pipeline 82, an accident pump 83, a filter main body 91, a backwashing pump 92, a backwashing water tank 93, a grid 100, a sludge concentration tank 101, a sludge screw pump 102, a screw stacking machine 103 and a PAM dosing machine 104.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The existing oily wastewater treatment system treatment equipment is in a wastewater environment when an accident occurs in the treatment process, is difficult to maintain and influences the system repair speed.
Referring to fig. 1 and 2, fig. 1 is a schematic view of an oily wastewater treatment system in an embodiment, and fig. 2 is a schematic view of connection between an accident pond and a regulation pond and an intermediate pond in an embodiment.
The embodiment provides an oily wastewater treatment system, including lifting shaft 1, oil separation sedimentation tank 2, equalizing basin 3, charge device 4, combination air supporting device 5, air supporting sediment pond 6, middle pond 7, accident pond 8, walnut shell filter 9, sludge treatment device 10 and deodorizing device 11.
The lift shaft 1 includes a grid 100.
Above-mentioned lift-well 1 is used for accepting oily waste water, and grid 100 sets up inside lift-well 1 for the great solid debris of separation volume, can also set up the elevator pump in lift-well 1, through the elevator pump with waste water drainage to oil-proof sedimentation tank 2.
The oil-separating sedimentation tank 2 receives wastewater from the rear end of the lift well 1 and includes a floating oil absorber 20.
The oil separation sedimentation tank 2 is used for precipitating waste water to separate oil from water in the waste water, and the floating oil absorption machine 20 is used for absorbing waste oil floating on the surface of the waste water, so that the oil separation sedimentation tank 2 has better oil removal capability compared with a traditional oily waste water treatment system.
And the adjusting tank 3 is used for receiving the wastewater at the rear end of the oil separation sedimentation tank 2.
The adjusting tank 3 is used for adjusting the quality and quantity of the sewage and buffering a peak value; can set up the elevator pump in the equalizing basin 3, carry the waste water after will adjusting to charge device 4 in through the elevator pump.
The dosing device 4 comprises a pipeline mixer 40 for receiving liquid medicine and wastewater at the rear end of the regulating reservoir 3.
The chemical adding device 4 is used for adding chemicals such as flocculating agent and the like into the wastewater to enable the wastewater to generate flocculation reaction; wherein the drug and wastewater are mixed in the line mixer 40.
And the combined air flotation device 5 is connected with the pipeline mixer 40.
The combined air flotation device 5 is used for accessing wastewater added with drugs, and can be an electric flocculation air flotation device for wastewater treatment in the prior art, and the electric flocculation air flotation device has the functions of electric coagulation, electric air flotation and electrochemical redox degradation in the wastewater treatment process, so that the removal rate of organic pollutants and heavy metals is greatly improved, the problem of electrode passivation is solved, the service life of an electrode is obviously prolonged, and the current efficiency is improved; the combined air floating device 5 can also be provided with air dissolving and releasing equipment which is used for fully mixing and dissolving the compressed air of an air compressor and the treated return water pressurized by a water pump in an air dissolving tank to form air dissolving water; waste water through adding medicine coagulation gets into the air supporting pond, dissolve the gas water of gas pitcher by dissolving gas releaser sudden decompression in water inlet pipe mouth lower part, make the air of dissolving in the aquatic release a large amount of microbubbles by sudden decompression, the microbubble meets the suspended solid that has gathered in sewage at the in-process that rises, the microbubble is attached to on the suspended solid, make it come-up very fast, the suspended solid that handles in the sewage like this is whole to float on it, then scrape them through the foam scraper on air supporting upper portion and arrange in air supporting sediment pond 6, sewage discharges in middle pond 7.
And the air floatation slag tank 6 is used for receiving the solid residue at the rear end of the combined air floatation device 5.
The air floatation slag tank 6 can temporarily store suspended matters generated in the combined air floatation device 5, and solid residues mainly comprise the suspended matters; the air-float slag pool 6 can be provided with a power source such as a lift pump, and solid slag is conveyed to the sludge treatment device 10 to be treated by the power source.
And the middle water tank 7 is used for receiving the wastewater at the rear end of the combined air flotation device 5.
The intermediate water tank 7 is used for buffering waste water, and the waste water can be filtered by arranging a filter pump and conveyed into a walnut shell filter 9.
The accident tank 8 includes a water inlet pipe 81 for receiving the wastewater of the regulation tank 3 or the wastewater of the intermediate tank 7 and a water inlet pipe 82 for delivering the internal wastewater to the regulation tank 3.
The above-mentioned accident pool 8 is used for temporarily storing wastewater in the event of a failure of the treatment facility.
And the walnut shell filter 9 is used for receiving and filtering the waste water at the rear end of the intermediate water tank 7.
The walnut shell filter 9 comprises a filter element filtering material made of natural plant fibers, has the characteristics of high air permeability, high corrosion resistance and the like, and due to the strong adsorbability of the natural plants, the filter element made of the material can effectively absorb impurities and peculiar smell in liquid.
And the sludge treatment device 10 is used for receiving the sludge at the rear end of the air floatation slag tank 6.
The sludge treatment device 10 is used for treating waste residues obtained by filtering front-end sewage and reaches the standard of discharge or secondary utilization.
And the deodorizing device 11 is used for receiving the gas in the lifting well 1, the adjusting tank 3, the combined air flotation device 5, the air flotation slag tank 6, the intermediate water tank 7 and the sludge treatment device 10 and deodorizing the gas.
The deodorizing device 11 may introduce the gas generated at various places into the main body through a pipe, and may perform deodorization by spraying.
When the oily wastewater treatment system in the technical scheme works, wastewater automatically flows into a lifting well 1 from a septic tank, enters an oil separation sedimentation tank 2 after larger coarse and foreign particles and suspended matters are intercepted by a grating 100, is precipitated in the oil separation sedimentation tank 2 to separate oil from water, is collected by an oil slick absorption machine 20 and then enters an adjusting tank 3, and is subjected to water quality and water quantity adjustment in the adjusting tank 3 to buffer a peak value; the wastewater in the regulating tank 3 is lifted by a pump and then enters a dosing device 4 for dosing, and a flocculating agent is dosed through the dosing device 4 to generate a flocculation precipitation reaction; the sewage after flocculation precipitation automatically flows into the combined air flotation device 5, and flocculated floccules and silt in the water are precipitated through natural precipitation, so that the purpose of primarily purifying the water quality is achieved. The sewage after sedimentation automatically flows into an air-float slag pool 6, micro bubbles are released from the sewage in the air-float slag pool 6 through a releaser, floaters such as flocculates, food residues, excrement residues and the like float up to the surface of the sewage, and the sewage is collected into a sludge treatment device 10 through a residue scraping system; the sewage in the air floatation slag tank 6 automatically flows into the intermediate water tank 7, and is buffered. The effluent of the middle water tank 7 enters a walnut shell filter 9, the biological treatment of carbon, nitrogen and phosphorus is synchronously carried out, the organic pollutants in the wastewater are further degraded, the nitrogen and phosphorus are synchronously removed, the water quality is purified again, and the filtered water can be discharged into municipal pipelines or drainage ditches. And the gas in the lifting well 1, the adjusting tank 3, the combined air flotation device 5, the air flotation slag tank 6, the intermediate water tank 7 and the sludge treatment device 10 enters the deodorization device 11, the gas is deodorized by the deodorization device 11, and the gas is discharged after reaching the standard. Thus realizing the treatment of the oily wastewater. Wherein, when treatment facility broke down, waste water flowed to equalizing basin 3 or middle pond 7 earlier, and rethread inlet pipe 81 is arranged in accident pond 8 and is kept in, and after the plant maintenance or change, waste water in accident pond 8 is sent waste water back to equalizing basin 3 or middle pond 7 through inlet pipe 82 and is continued to be handled again, so can make treatment facility break away from the waste water environment, and the change of more convenient maintenance, and then lifting system fault treatment efficiency.
In one embodiment of the water inlet lines 81 and 82, the water inlet lines 81 and 82 include an emergency pump 83, the emergency pump 83 is located at the bottom of the adjusting tank 3 and the emergency pump 83 and is used for providing power for delivering sewage, and the emergency pump 83 can be a lift pump or a filter pump, which can improve the efficiency of sewage delivery.
In order to improve the aeration effect of the adjusting tank 3 on the sewage, the oily wastewater treatment system further comprises an aeration blower 12, and the aeration blower 12 is used for blowing air into the adjusting tank 3 to further realize the aeration effect.
In one embodiment of the dosing device 4, the dosing device 4 further comprises a PAC dosing apparatus 41 and a PAM dosing apparatus 42 connected to the line mixer 40 and a COD meter 43 located at the intensity of the line mixer 40. PAC dosing equipment 41 is also called a polyaluminium chloride dosing device 4 and is used for removing impurities in sewage to form small alum floc; in sewage treatment, the PAM dosing device 42 can be used for sludge dewatering and can also increase the utilization rate of water recycling; the COD meter 43 is used to detect the degree of contamination of the sewage.
In order to enable the walnut shell filter 9 to have a backwashing function, the walnut shell filter 9 comprises a filter main body 91 connected with the middle water tank 7 and the accident tank 8, a backwashing pump 92 connected with the filter main body 91 and a backwashing water tank 93 connected with the backwashing pump 92, wherein the filter main body 91 comprises a water outlet and a municipal pipe orifice; during backwashing, clean water in the backwashing water tank 93 enters the filter main body 91 through the backwashing pump 92 to backwashing the filter main body 91.
In one embodiment of the sludge treatment apparatus 10, the sludge treatment apparatus 10 comprises a sludge concentration tank 101 connected to the air flotation slag tank 6, a sludge screw pump 102 for outputting sludge in the sludge concentration tank 101, a screw stack 103 for receiving sludge output from the sludge screw pump 102, and a PAM doser 104 for feeding chemicals into the screw stack 103; the sludge treatment device 10 in the embodiment firstly carries out concentration treatment on sludge through the sludge concentration tank 101, then conveys the concentrated sludge to the screw stacking machine 103 through the sludge screw pump 102, and the screw stacking machine 103 adds drugs through the PAM doser 104 in the sludge treatment process, thereby realizing the standard treatment of the sludge.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An oily wastewater treatment system, characterized by comprising:
a lift well, the lift well including a grid;
the oil separation sedimentation tank is used for receiving the wastewater at the rear end of the lifting well and comprises a floating oil absorption machine;
the adjusting tank is used for receiving the wastewater at the rear end of the oil separation sedimentation tank;
the dosing device comprises a pipeline mixer for receiving liquid medicine and wastewater at the rear end of the regulating tank;
the combined air flotation device is connected with the pipeline mixer;
the air floatation slag pool is used for receiving solid residues at the rear end of the combined air floatation device;
the middle water tank is used for receiving the waste water at the rear end of the combined air floatation device;
the accident pool comprises a water inlet pipeline for receiving the wastewater of the regulating pool or the wastewater of the intermediate pool and a water outlet pipeline for conveying the internal wastewater to the regulating pool;
the walnut shell filter is used for receiving and filtering the wastewater at the rear end of the intermediate water tank;
the sludge treatment device is used for receiving the sludge at the rear end of the air floatation slag pool;
and the deodorizing device is used for receiving the gas in the lifting well, the regulating tank, the combined air floatation device, the air floatation slag tank, the intermediate water tank and the sludge treatment device and deodorizing the gas.
2. The oily wastewater treatment system of claim 1 wherein the water inlet and outlet lines comprise emergency pumps located at the bottom of the conditioning tank and emergency pumps and used to provide power for transporting the wastewater.
3. The oily wastewater treatment system according to claim 1, further comprising an aeration blower for aerating the inside of the conditioning tank.
4. The oily wastewater treatment system of claim 1, wherein the dosing device further comprises a PAC dosing device and a PAM dosing device connected to the line mixer and a COD meter at the intensity of the line mixer.
5. The oily wastewater treatment system of claim 1, wherein the walnut shell filter comprises a filter body connected with the intermediate water tank and the accident tank, a backwash pump connected with the filter body, and a backwash water tank connected with the backwash pump, and the filter body comprises a water discharge port and a municipal pipe orifice.
6. The oily wastewater treatment system according to claim 1, wherein the sludge treatment device comprises a sludge concentration tank connected with the air flotation slag tank, a sludge screw pump for outputting sludge in the sludge concentration tank, a screw stack machine for receiving sludge output by the sludge screw pump, and a PAM doser for feeding medicine into the screw stack machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223105157.XU CN218709823U (en) | 2022-11-22 | 2022-11-22 | Oily wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223105157.XU CN218709823U (en) | 2022-11-22 | 2022-11-22 | Oily wastewater treatment system |
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| Publication Number | Publication Date |
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| CN218709823U true CN218709823U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223105157.XU Active CN218709823U (en) | 2022-11-22 | 2022-11-22 | Oily wastewater treatment system |
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| Country | Link |
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| CN (1) | CN218709823U (en) |
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- 2022-11-22 CN CN202223105157.XU patent/CN218709823U/en active Active
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