CN113860649A - Treatment equipment and treatment process for domestic sewage - Google Patents

Treatment equipment and treatment process for domestic sewage Download PDF

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Publication number
CN113860649A
CN113860649A CN202111236924.8A CN202111236924A CN113860649A CN 113860649 A CN113860649 A CN 113860649A CN 202111236924 A CN202111236924 A CN 202111236924A CN 113860649 A CN113860649 A CN 113860649A
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China
Prior art keywords
tank
water
disinfection
pump
treatment
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CN202111236924.8A
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Chinese (zh)
Inventor
广红丽
任国晖
沈熙凡
孙晓文
王志翠
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Jiangsu Green Water Treatment Co ltd
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Jiangsu Green Water Treatment Co ltd
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Priority to CN202111236924.8A priority Critical patent/CN113860649A/en
Publication of CN113860649A publication Critical patent/CN113860649A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/002Grey water, e.g. from clothes washers, showers or dishwashers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/003Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes

Abstract

The invention relates to the technical field of domestic sewage treatment, in particular to a treatment device and a treatment process for domestic sewage, which comprise an adjusting tank, wherein a grid is arranged in the adjusting tank, one side of a disinfection tank is connected with a reuse tank, a sampling pipe is arranged at one end in the reuse tank, the tail end of the sampling pipe is connected with a sampling pump, a water quality detection sensor is arranged at one end of the sampling pump, a reflux pump is arranged at one end of the reuse tank, and a reflux pipe is connected to one end of the reflux pump. This treatment facility and processing technology for domestic sewage are provided with and can take a sample the sewage after handling in the retrieval and utilization pond through sampling tube and sampling pump, can detect quality of water through the water quality testing sensor to judge whether it reaches the standard of recycling, the back flow can carry the sewage that does not reach the standard to carry out retreatment in the biological treatment pond, thereby guarantee sewage treatment's effect.

Description

Treatment equipment and treatment process for domestic sewage
Technical Field
The invention relates to the technical field of domestic sewage treatment, in particular to a treatment device and a treatment process for domestic sewage.
Background
The domestic sewage refers to the wastewater generated in daily life of urban organs, schools and residents, and comprises domestic drainage such as washing clothes, bathing in kitchens, toilet excrement and urine, drainage of businesses, hospitals and amusement places, and the like, the discharge amount of the domestic sewage is huge, so that the treatment of the discharged domestic sewage is necessary, and a treatment device and a treatment process for the domestic sewage are needed.
The existing treatment equipment and treatment process for domestic sewage are simple, and peculiar smell and bacteria in sewage are difficult to remove thoroughly, so that the sewage is difficult to treat to a proper daily use degree, the sludge produced by sewage treatment is usually directly discharged, organic matters in the sludge are not fully utilized, and resource waste is caused.
Disclosure of Invention
The invention aims to provide a treatment device and a treatment process for domestic sewage.
In order to achieve the purpose, the invention adopts the following technical scheme:
a treatment device and a treatment process for domestic sewage comprise an adjusting tank, wherein a grid is arranged inside the adjusting tank, a sand settling tank is connected to one side of the adjusting tank, a filter screen is arranged inside the sand settling tank, a biological treatment tank is connected to one side of the sand settling tank, an aerator is arranged below the sand settling tank, a fan is arranged on one side above the biological treatment tank, one end of the fan is connected with an air supply pipe, one side of the biological treatment tank is connected with a sedimentation tank, a sludge outlet is formed in the lower end face of the sedimentation tank, a sludge dewatering tank is arranged below the sedimentation tank, a sealing plate is arranged on the upper end face of the sludge dewatering tank, a water filtering plate is arranged inside the sludge dewatering tank, a discharge port is formed in one side of the water filtering plate, a sludge treatment tank is arranged on one side of the discharge port, a disinfection tank is arranged on one side of the sedimentation tank, a disinfection pump is arranged at one end of the disinfection tank, and a disinfection box is connected to the end of the disinfection pump, the elevator pump is all installed to equalizing basin, the desilting pond, the biological treatment pond, the inside one side of sedimentation tank and disinfection pond, one side of disinfection pond is connected with the retrieval and utilization pond, and the one end in the retrieval and utilization pond is equipped with the sampling tube, the end-to-end connection of sampling tube has the sampling pump, and the one end of sampling pump is equipped with the water quality testing sensor, the backwash pump is installed to the one end of retrieval and utilization pond, and the one end of backwash pump is connected with the back flow, the output of water quality testing sensor is connected with the controller.
Preferably, the even equidistance in inside along the equalizing basin of grid distributes, and the grid is the slope form and distributes, and the structure of filter screen is fretwork network structure.
Preferably, the aerators are uniformly distributed along one side of the interior of the biological treatment tank, and the air supply pipe and the biological treatment tank form a communication structure.
Preferably, the two sides of the sludge outlet are provided with feeding plates, and the two ends of the feeding plates are connected with conveying seats.
Preferably, the conveying screw rod is arranged in the conveying seat in a penetrating mode, and one end, far away from the mud outlet, of the conveying screw rod is connected with a servo motor.
Preferably, both sides of the lower part of the sealing plate are connected with racks, the lower part of each rack is meshed with a gear, and one end, far away from the sealing plate, of each gear is connected with a micro motor.
Preferably, one side of the upper part of the water filtering plate is provided with a scraping plate, one end of the scraping plate is connected with a hydraulic cylinder, and the hydraulic cylinder and the scraping plate form a telescopic structure.
Preferably, the edge line of the upper end of the sludge treatment tank is level with the edge line of the lower end of the discharge port, and the disinfection box forms a communicating structure with the disinfection tank through the disinfection pump and the pipeline.
Preferably, the recycling water pool forms a communicating structure through the sampling pipe and the sampling pump, and the recycling water pool forms a communicating structure through the reflux pump and the reflux pipe and the biological treatment pool.
Preferably, the treatment process for domestic sewage is characterized by comprising the following steps of:
the method comprises the following steps: introducing domestic sewage into a regulating tank, and removing floating materials in the sewage;
step two: pumping the water treated in the regulating tank into a desilting tank, and removing small particles from the sewage;
step three: pumping the water treated in the desilting tank into a biological treatment tank for biological reaction to remove organic pollutants in the sewage;
step four: pumping the water treated in the biological treatment tank into a sedimentation tank for sedimentation, and separating clean water;
step five: pumping the water treated in the sedimentation tank into a disinfection tank, and carrying out disinfection and sterilization and peculiar smell removal treatment;
step six: pumping the disinfected water into a reuse water tank for storage, and detecting the water in the reuse water tank through a water quality detection sensor to judge whether the water meets the standard or not;
step seven: the water can be directly used when reaching the standard, and the water is pumped into a biological treatment tank for secondary treatment through a reflux pump when not reaching the standard.
The invention has at least the following beneficial effects:
1. this treatment facility for domestic sewage and processing technology are provided with the grid and can carry out the extraction of large fragment floater to the sewage that gets into in the equalizing basin, the grid that is the slope form and distributes can be convenient for the collection of large fragment floater, avoided floater jam grid simultaneously, the filter screen through fretwork network structure can filter the sewage that gets into the desilting pond, thereby can reach the effect of getting rid of aquatic particulate matter, can carry out the aeration to sewage in the biological treatment pond through the aerator, thereby can reach the effect of getting rid of aquatic organic pollutant, can supply air to the aquatic in the biological treatment pond through the blast pipe, thereby can make organic pollutant in the sewage fully react with good oxygen activated sludge, with the purpose that reaches most organic matters of purification.
2. This treatment facility and processing technology for domestic sewage are provided with the ejection of compact that mud mouth can be convenient for mud in the sedimentation tank, and servo motor can drive the conveying lead screw and rotate, and pivoted conveying lead screw can carry out synchronous conveying to conveying seat and delivery sheet to can be close to relatively through the delivery sheet with mud around the mud mouth to centre propelling movement.
3. This treatment facility and processing technology for domestic sewage are provided with micro motor and can drive the gear and rotate, pivoted gear can drive rack and closing plate and carry out the removal of horizontal direction, thereby can be convenient for opening and shutting of closing plate, the drainage board can filter dehydration to mud, the pneumatic cylinder can drive scrapes the flitch and carry out the removal of fore-and-aft direction, can send the mud of drainage board top forward scraping the in-process that the flitch removed, it falls to the sludge treatment pond to be convenient for mud through the discharge gate, thereby can collect mud so that follow-up processing recycles, the mud of having avoided sewage treatment to produce is direct discharge usually, organic matter in the mud can not obtain make full use of, the problem of wasting of resources has been caused.
4. The treatment equipment and the treatment process for the domestic sewage are provided with a disinfection pump and a pipeline which can convey the disinfectant in the disinfection box into a disinfection tank, thereby disinfecting and sterilizing the sewage in the disinfection tank to remove the peculiar smell in the water and improve the quality of sewage treatment, the sewage treated in the reuse water tank can be sampled through the sampling pipe and the sampling pump, the water quality can be detected through the water quality detection sensor, so as to judge whether the sewage reaches the standard of reuse, the reflux pump and the reflux pipe can convey the sewage which does not reach the standard into the biological treatment tank for retreatment, thereby can guarantee sewage treatment's effect, it is comparatively simple to have solved current treatment facility for domestic sewage and processing technology process, is difficult to more thorough get rid of peculiar smell and bacterium in the sewage to be difficult to with sewage treatment to the problem of the degree of suitable daily use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the outer frame and lift pump of the present invention;
FIG. 3 is a schematic cross-sectional view of a biological treatment tank according to the present invention;
FIG. 4 is a schematic cross-sectional view of a settling tank according to the present invention;
FIG. 5 is a schematic view of the connection structure of the sludge dewatering tank and the sludge treatment tank of the connection frame according to the present invention;
FIG. 6 is a schematic view of the sealing plate of the present invention;
fig. 7 is a schematic view of a connection structure of the strainer plate and the scraper plate.
In the figure: 1. a regulating tank; 2. a grid; 3. a desilting pool; 4. filtering with a screen; 5. a biological treatment tank; 7. a fan; 8. an air supply pipe; 9. a lift pump; 10. an aerator; 11. a sedimentation tank; 12. a sludge outlet; 13. a feeding plate; 14. a transfer base; 15. a conveying screw rod; 16. a servo motor; 17. a sludge dewatering tank; 18. a sealing plate; 19. a rack; 20. a micro motor; 21. a gear; 22. a water filter plate; 23. a discharge port; 24. a sludge treatment tank; 25. a scraping plate; 26. a hydraulic cylinder; 27. a disinfection tank; 28. a sterilizing box; 29. a sterilizing pump; 30. a reuse water tank; 31. a sampling tube; 32. a sampling pump; 33. a water quality detection sensor; 34. a return pipe; 35. a reflux pump; 36. and a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-7, a treatment device and a treatment process for domestic sewage, comprising an adjusting tank 1, wherein a grid 2 is arranged inside the adjusting tank 1, a sand settling tank 3 is connected to one side of the adjusting tank 1, a filter screen 4 is arranged inside the sand settling tank 3, a biological treatment tank 5 is connected to one side of the sand settling tank 3, an aerator 10 is arranged below the sand settling tank 3, a fan 7 is arranged on one side above the biological treatment tank 5, an air supply pipe 8 is connected to one end of the fan 7, a sedimentation tank 11 is connected to one side of the biological treatment tank 5, a sludge outlet 12 is arranged on the lower end surface of the sedimentation tank 11, a sludge dewatering tank 17 is arranged below the sedimentation tank 11, a sealing plate 18 is arranged on the upper end surface of the sludge dewatering tank 17, a water filtering plate 22 is arranged inside the sludge dewatering tank 17, a discharge port 23 is arranged on one side of the water filtering plate 22, a sludge treatment tank 24 is arranged on one side of the discharge port 23, one side of sedimentation tank 11 is equipped with disinfection pond 27, and the one end of disinfection pond 27 is equipped with disinfection pump 29, the end-to-end connection of disinfection pump 29 has disinfect box 28, equalizing basin 1, desilting pond 3, biological treatment pond 5, elevator pump 9 is all installed to sedimentation tank 11 and the inside one side of disinfection pond 27, one side of disinfection pond 27 is connected with reuse water pool 30, and the one end in reuse water pool 30 is equipped with sampling tube 31, the end-to-end connection of sampling tube 31 has sampling pump 32, and sampling pump 32's one end is equipped with water quality testing sensor 33, backwash pump 35 is installed to reuse water pool 30's one end, and backwash pump 35's one end is connected with back flow 34, water quality testing sensor 33's output is connected with controller 36.
The scheme has the following working processes:
firstly, introducing domestic sewage to be treated into an adjusting tank 1, extracting large floaters in the sewage through a grating 2, enabling the large floaters to slide to one side of the adjusting tank 1 through an inclined grating 2, enabling the sewage to flow to the other side of the adjusting tank 1 through the grating 2, pumping the sewage in the adjusting tank 1 into a desilting tank 3 through a lifting pump 9, filtering the sewage through a filter screen 4 with a hollow-out net-shaped structure, and pumping the sewage into a biological treatment tank 5 after removing particles in the sewage; secondly, aerating the sewage in the biological treatment tank 5 through an aerator 10, starting a fan 7, and supplying air to the water in the biological treatment tank 5 through an air supply pipe 8 by the fan 7, so that organic pollutants in the sewage can fully react with aerobic activated sludge to achieve the aim of purifying most of organic matters; then the sewage after biological treatment is pumped from the biological treatment pool 5 to the sedimentation pool 11 for sedimentation, after sedimentation, the water at the upper part of the sedimentation pool 11 is pumped to the disinfection pool 27, then the disinfection pump 29 is started, the disinfectant in the disinfection box 28 is conveyed to the disinfection pool 27 through the disinfection pump 29 and a pipeline, thereby the sewage in the disinfection pool 27 can be disinfected and sterilized to remove peculiar smell in the water and improve the quality of sewage treatment, after disinfection, the water is introduced into the reuse pool 30, the sampling pump 32 is started, the sewage treated in the reuse pool 30 is sampled through the sampling pipe 31, the water quality is detected through the water quality detection sensor 33 to judge whether the sewage reaches the reuse standard, when the standard is reached, the reuse in the aspects of greening, flushing, ornamental water body supplementing and the like can be directly carried out, when the standard is not reached, the controller 36 controls the return pump 35 to convey the sewage in the reuse pool 30 to the biological treatment pool 5 through the return pipe 34 for retreatment, thereby ensuring the best effect of sewage treatment; finally, the micro motor 20 is started, the micro motor 20 drives the gear 21 to rotate, the rotating gear 21 can drive the rack 19 and the sealing plate 18 to move in the horizontal direction, so that the sealing plate 18 can be opened, at the moment, sludge falls into the sludge dewatering tank 17 from the sludge outlet 12, the servo motor 16 is started, the servo motor 16 drives the conveying screw rod 15 to rotate, the rotating conveying screw rod 15 synchronously conveys the conveying seat 14 and the feeding plate 13, so that sludge around the sludge outlet 12 can be pushed towards the middle through the relative approach of the feeding plate 13, the sludge is thoroughly discharged conveniently, at the moment, the sludge is filtered and dewatered through the water filtering plate 22, the dewatered sludge is left above the water filtering plate 22, then the hydraulic cylinder 26 is started, the hydraulic cylinder 26 drives the scraper 25 to move in the front-back direction, and the sludge above the water filtering plate 22 can be moved forwards to the discharge port 23 in the moving process of the scraper 25, and then falls into the sludge treatment tank 24 so that the sludge can be collected for subsequent treatment and reuse.
According to the working process, the following steps are known:
further, the grids 2 are uniformly and equidistantly distributed along the interior of the adjusting tank 1, the grids 2 are distributed in an inclined manner, and the filter screen 4 is in a hollow net structure; grid 2 can carry out the drawing of large fragment floater to the sewage that gets into in the equalizing basin 1, and the collection that is the large fragment floater of being convenient for of grid 2 that the slope form distributes has avoided the floater to block up grid 2 simultaneously, and filter screen 4 through fretwork network structure can filter the sewage that gets into desilting pond 3 to can reach the effect of getting rid of aquatic particulate matter.
Furthermore, the aerators 10 are uniformly distributed along one side inside the biological treatment tank 5, and a communication structure is formed between the blast pipe 8 and the biological treatment tank 5; the aeration can be carried out on the sewage in the biological treatment tank 5 through the aerator 10, so that the effect of removing organic pollutants in water can be achieved, air can be supplied into the water in the biological treatment tank 5 through the air supply pipe 8, and the organic pollutants in the sewage can be fully reacted with aerobic activated sludge to achieve the purpose of purifying most of organic matters.
Furthermore, feeding plates 13 are mounted on two sides of the sludge outlet 12, and two ends of each feeding plate 13 are connected with a conveying seat 14; a conveying screw rod 15 penetrates through the conveying seat 14, and one end, far away from the mud outlet 12, of the conveying screw rod 15 is connected with a servo motor 16; the mud outlet 12 can be convenient for the ejection of compact of mud in the sedimentation tank 11, and servo motor 16 can drive conveying lead screw 15 and rotate, and pivoted conveying lead screw 15 can carry out synchronous conveying to conveying seat 14 and delivery sheet 13 to can be close to the mud around with mud outlet 12 to centre propelling movement relatively through delivery sheet 13.
Furthermore, racks 19 are connected to two sides of the lower portion of the sealing plate 18, a gear 21 is meshed and connected to the lower portion of the racks 19, and a micro motor 20 is connected to one end, far away from the sealing plate 18, of the gear 21; the micro motor 20 can drive the gear 21 to rotate, and the rotating gear 21 can drive the rack 19 and the sealing plate 18 to move in the horizontal direction, so that the sealing plate 18 can be conveniently opened and closed.
Further, a scraping plate 25 is installed on one side above the water filtering plate 22, one end of the scraping plate 25 is connected with a hydraulic cylinder 26, and a telescopic structure is formed between the hydraulic cylinder 26 and the scraping plate 25; the water filtering plate 22 can filter and dewater sludge, the hydraulic cylinder 26 can drive the scraping plate 25 to move in the front-back direction, and the sludge above the water filtering plate 22 can be conveyed forwards in the moving process of the scraping plate 25.
Furthermore, the upper end edge line of the sludge treatment tank 24 is flush with the lower end edge line of the discharge port 23, and the sludge is convenient to fall into the sludge treatment tank 24 through the discharge port 23, so that the sludge can be collected for subsequent treatment and recycling, the problems that the sludge generated by sewage treatment is usually directly discharged, organic matters in the sludge cannot be fully utilized, and the resource waste is caused are solved.
Further, disinfection pump 29 and pipeline can carry the disinfectant in disinfect box 28 to disinfection pond 27 in to can disinfect the sterilization to sewage in the disinfection pond 27, with the aquatic peculiar smell of getting rid of, improve sewage treatment's quality.
Further, a communication structure is formed between the reuse water tank 30 and the sampling pump 32 through the sampling pipe 31, and a communication structure is formed between the reuse water tank 30 and the biological treatment tank 5 through the reflux pump 35 and the reflux pipe 34; can take a sample the sewage after handling in the reuse water tank 30 through sampling tube 31 and sampling pump 32, can detect quality of water through water quality testing sensor 33, whether reach the standard of recycling in order to judge it, backwash pump 35 and back flow 34 can carry the sewage that does not reach the standard to carry out the retreatment in the biological treatment pond 5, thereby can guarantee sewage treatment's effect, it is comparatively simple to have solved current treatment facility and processing technology process for domestic sewage, be difficult to more thorough get rid of peculiar smell and bacterium in the sewage, thereby be difficult to with the problem of sewage treatment degree to suitable daily use.
Further, the treatment process for the domestic sewage comprises the following steps:
the method comprises the following steps: introducing domestic sewage into a regulating tank 1, and removing floating objects in the sewage;
step two: pumping the water treated in the adjusting tank 1 into a desilting tank 3, and removing small particles from the sewage;
step three: pumping the water treated in the sand settling tank 3 into a biological treatment tank 5 for biological reaction to remove organic pollutants in the sewage;
step four: pumping the water treated in the biological treatment tank 5 into a sedimentation tank 11 for sedimentation, and separating clean water;
step five: pumping the water treated in the sedimentation tank 11 into a disinfection tank 27 for disinfection and sterilization and peculiar smell removal;
step six: pumping the disinfected water into a reuse water tank 30 for storage, and detecting the water in the reuse water tank 30 through a water quality detection sensor 33 to judge whether the water meets the standard or not;
step seven: the water can be directly used when reaching the standard, and the water is pumped into the biological treatment pool 5 by the reflux pump 35 for secondary treatment when not reaching the standard; can ensure that the sewage treatment achieves the best effect.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The domestic sewage treatment equipment comprises an adjusting tank (1) and is characterized in that a grid (2) is arranged inside the adjusting tank (1), one side of the adjusting tank (1) is connected with a sand settling tank (3), a filter screen (4) is arranged inside the sand settling tank (3), one side of the sand settling tank (3) is connected with a biological treatment tank (5), an aerator (10) is arranged below the sand settling tank (3), a fan (7) is arranged on one side above the biological treatment tank (5), one end of the fan (7) is connected with an air supply pipe (8), one side of the biological treatment tank (5) is connected with a sedimentation tank (11), a sludge outlet (12) is formed in the lower end face of the sedimentation tank (11), a sludge dewatering tank (17) is arranged below the sedimentation tank (11), and a sealing plate (18) is arranged on the upper end face of the sludge dewatering tank (17), the sludge dewatering tank is characterized in that a water filtering plate (22) is arranged inside the sludge dewatering tank (17), a discharge port (23) is formed in one side of the water filtering plate (22), a sludge treatment tank (24) is arranged on one side of the discharge port (23), a disinfection tank (27) is arranged on one side of the sedimentation tank (11), a disinfection pump (29) is arranged at one end of the disinfection tank (27), a disinfection box (28) is connected to the tail end of the disinfection pump (29), a regulating tank (1), a sand settling tank (3), a biological treatment tank (5), the sedimentation tank (11) and one side inside the disinfection tank (27) are respectively provided with a lifting pump (9), a reuse water tank (30) is connected to one side of the disinfection tank (27), a sampling pipe (31) is arranged at one end inside the reuse water tank (30), a sampling pump (32) is connected to the tail end of the sampling pipe (31), and a water quality detection sensor (33) is arranged at one end of the sampling pump (32), return pump (35) are installed to the one end of retrieval and utilization pond (30), and the one end of return pump (35) is connected with back flow (34), the output of water quality testing sensor (33) is connected with controller (36).
2. The domestic sewage treatment equipment according to claim 1, wherein the grids (2) are uniformly and equidistantly distributed along the inside of the adjusting tank (1), the grids (2) are distributed in an inclined manner, and the filter screen (4) is of a hollow mesh structure.
3. The apparatus for treating domestic sewage according to claim 1, wherein: the aerators (10) are uniformly distributed along one side in the biological treatment tank (5), and a communication structure is formed between the blast pipe (8) and the biological treatment tank (5).
4. The apparatus for treating domestic sewage according to claim 1, wherein: and feeding plates (13) are arranged on two sides of the sludge outlet (12), and two ends of each feeding plate (13) are connected with conveying seats (14).
5. The domestic sewage treatment apparatus according to claim 4, wherein: a conveying screw rod (15) penetrates through the conveying seat (14), and one end, far away from the mud outlet (12), of the conveying screw rod (15) is connected with a servo motor (16).
6. The apparatus for treating domestic sewage according to claim 1, wherein: both sides of the lower portion of the sealing plate (18) are connected with racks (19), the lower portion of the racks (19) is meshed with gears (21), and one ends, far away from the sealing plate (18), of the gears (21) are connected with micro motors (20).
7. The apparatus for treating domestic sewage according to claim 1, wherein: one side of strainer plate (22) top is installed and is scraped flitch (25), and scrapes the one end of flitch (25) and be connected with pneumatic cylinder (26) to constitute extending structure between pneumatic cylinder (26) and the flitch (25).
8. The apparatus for treating domestic sewage according to claim 1, wherein: the upper end edge line of the sludge treatment tank (24) is level with the lower end edge line of the discharge port (23), and the disinfection box (28) forms a communication structure with the disinfection tank (27) through a disinfection pump (29) and a pipeline.
9. The apparatus for treating domestic sewage according to claim 1, wherein: the recycling water pool (30) forms a communicating structure through the sampling pipe (31) and the sampling pump (32), and the recycling water pool (30) forms a communicating structure through the reflux pump (35) and the reflux pipe (34) and the biological treatment pool (5).
10. A treatment process for domestic sewage is characterized by comprising the following steps,
the method comprises the following steps: introducing domestic sewage into a regulating tank (1) and removing floating materials in the sewage;
step two: pumping the water treated in the regulating tank (1) into a desilting tank (3) to remove small particles of the sewage;
step three: pumping the water treated in the sand settling tank (3) into a biological treatment tank (5) for biological reaction to remove organic pollutants in the sewage;
step four: pumping the water treated in the biological treatment tank (5) into a sedimentation tank (11) for sedimentation, and separating clean water;
step five: pumping the water treated in the sedimentation tank (11) into a disinfection tank (27) for disinfection and sterilization and peculiar smell removal;
step six: pumping the disinfected water into a reuse water tank (30) for storage, and detecting the water in the reuse water tank (30) through a water quality detection sensor (33) to judge whether the water meets the standard or not;
step seven: when the standard is met, the water can be directly used, and when the standard is not met, the water is pumped into the biological treatment pool (5) through the reflux pump (35) for secondary treatment.
CN202111236924.8A 2021-10-24 2021-10-24 Treatment equipment and treatment process for domestic sewage Pending CN113860649A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115108683A (en) * 2022-07-25 2022-09-27 明达海洋工程有限公司 Sewage treatment equipment for ecological environment treatment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205773888U (en) * 2016-04-08 2016-12-07 郭义挺 Municipal wastewater processing means
CN207047054U (en) * 2017-05-19 2018-02-27 河北艾科中意复合材料有限公司 Integrated domestic sewage treatment device
CN208857108U (en) * 2018-08-31 2019-05-14 武汉新禹环保设备工程有限公司 A kind of environment protection sewage processing system
CN113371953A (en) * 2021-07-27 2021-09-10 深圳市时之洁生态环境科技有限公司 Comprehensive sewage treatment and recycling method for expressway service area

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205773888U (en) * 2016-04-08 2016-12-07 郭义挺 Municipal wastewater processing means
CN207047054U (en) * 2017-05-19 2018-02-27 河北艾科中意复合材料有限公司 Integrated domestic sewage treatment device
CN208857108U (en) * 2018-08-31 2019-05-14 武汉新禹环保设备工程有限公司 A kind of environment protection sewage processing system
CN113371953A (en) * 2021-07-27 2021-09-10 深圳市时之洁生态环境科技有限公司 Comprehensive sewage treatment and recycling method for expressway service area

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115108683A (en) * 2022-07-25 2022-09-27 明达海洋工程有限公司 Sewage treatment equipment for ecological environment treatment

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Application publication date: 20211231