CN211521959U - Multistage sewage treatment pond - Google Patents

Abstract

The utility model discloses a multi-stage sewage treatment tank, which relates to the technical field of sewage treatment and aims to solve the problems of high operation cost and poor treatment effect of the existing sewage treatment tank. One side of the filtration sedimentation tank is provided with an anaerobic tank, one side of the anaerobic tank is provided with an aerobic tank, one side of the aerobic tank is provided with a disinfection tank, and one side of the disinfection tank is provided with a In the clear water tank, a filter basket is installed on the upper end of the filtration and sedimentation tank, a lifting plate is installed on the upper end of the filter basket, a water inlet is arranged in the middle of the upper end of the lifting plate, and one side of the bottom end of the filter sedimentation tank is installed A first sedimentation tank is provided, a second sedimentation tank is provided on the other side of the bottom end of the filter sedimentation tank, and a first sludge discharge pipe is installed at the lower ends of the first sedimentation tank and the second sedimentation tank. The lower end of one row of mud pipes is provided with a second row of mud pipes, and both the first and second mud pipes are located outside the filtering and sedimentation tank.

Description

A multi-stage sewage treatment tank

technical field

The utility model relates to the technical field of sewage treatment, in particular to a multi-stage sewage treatment tank.

Background technique

Sewage treatment: The process of purifying sewage in order to make it meet the water quality requirements for discharge into a body of water or for reuse. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical, catering and other fields, and is increasingly entering the daily life of ordinary people. A required procedure, especially for various textile, paper, printing and dyeing, chemical and other industries, due to the large amount of waste water, if no reliable sewage treatment is carried out, it will cause extremely serious pollution to the environment.

However, the existing sewage treatment tank has high operating cost and poor treatment effect, so it does not meet the existing needs. For this, we propose a multi-stage sewage treatment tank.

Utility model content

The purpose of the present invention is to provide a multi-stage sewage treatment tank, so as to solve the problems of high operation cost and poor treatment effect of the existing sewage treatment tank proposed in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides the following technical solutions: a multi-stage sewage treatment tank, including a filter sedimentation tank, one side of the filter sedimentation tank is provided with an anaerobic tank, and one side of the anaerobic tank is provided with a Aerobic tank, one side of the aerobic tank is provided with a disinfection tank, one side of the disinfection tank is provided with a clear water tank, the upper end of the filter sedimentation tank is installed with a filter basket, and the upper end of the filter basket is installed with a lift. Pulling plate, the middle of the upper end of the pulling plate is provided with a water inlet, one side of the bottom end of the filter sedimentation tank is provided with a first sedimentation tank, and the other side of the inner bottom end of the filter sedimentation tank is provided with a second sedimentation tank , the lower ends of the first sedimentation tank and the second sedimentation tank are equipped with a first mud discharge pipe, the lower end of the first mud discharge pipe is installed with a second mud discharge pipe, and the first mud discharge pipe and the second mud discharge pipe are installed The mud pipes are all located outside the filtering and sedimentation tank, and the lower ends of the outer two sides of the filtering and sedimentation tank are equipped with feet, and the feet are welded and connected with the filtering and sedimentation tank.

Preferably, a separator is installed inside the anaerobic tank, and anaerobic bacteria are arranged on one side of the separator.

Preferably, aerobic activated sludge is arranged inside the aerobic pool, an aeration pipe is installed at the bottom end of the aerobic pool, an aeration fan is installed behind the aerobic pool, and the aeration An intake pipe is installed between the fan and the aerobic pool, and one end of the intake pipe is connected with the aeration fan through a flange.

Preferably, a motor is installed in the middle of the upper end of the disinfection tank, and a stirring rod is installed at the lower end of the motor, and the stirring rod and the motor are connected by a coupling.

Preferably, a disinfectant injection port is provided on one side of the upper end of the disinfection tank.

Preferably, a fourth overflow weir is arranged between the filtration sedimentation tank and the anaerobic tank, a first overflow weir is arranged between the anaerobic tank and the aerobic tank, and a first overflow weir is arranged between the aerobic tank and the disinfection tank. The second overflow weir is provided with a third overflow weir between the disinfection tank and the clear water tank.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model reduces the number of pumps used by setting the corresponding overflow weirs between each stage of the treatment pool, thereby reducing the operating cost.

2. The utility model can pull out the filter basket through the lifting plate, which is convenient for the rapid treatment of the internal impurities, and the organic matter is hydrolyzed, acidified and methanated through the anaerobic tank, the organic matter in the sewage is removed, and the biodegradability of the sewage is improved. The aerobic activated sludge inside the aerobic tank adsorbs and degrades organic matter, allows the activated sludge to perform aerobic respiration, further decomposes the organic matter into inorganic matter, and removes most of the COD, Ammonia nitrogen and other organic substances are mixed with the disinfectant and the sewage through the disinfection tank for disinfection, killing the pathogenic microorganisms in the treated sewage, and the overall sewage treatment tank has a better treatment effect on the sewage.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of multistage sewage treatment tank of the present invention;

Fig. 2 is the structural representation of the aeration fan of the utility model;

3 is a schematic structural diagram of the aeration pipe of the present invention.

In the figure: 1. Filtration sedimentation tank; 2. Anaerobic tank; 3. Aerobic tank; 4. Disinfection tank; 5. Clear water tank; 6. Filter basket; 7. Lifting plate; 8. Water inlet; 9. a sedimentation tank; 10, the second sedimentation tank; 11, the first row of mud pipes; 12, the second row of mud pipes; 13, the feet; 14, the baffle; 15, the anaerobic bacteria; 16, the first overflow weir; 17, aerobic activated sludge; 18, aeration pipe; 19, aeration fan; 20, air intake pipe; 21, motor; 22, stirring rod; 25. The third overflow weir; 26. The fourth overflow weir.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-3, an embodiment provided by the present utility model: a multi-stage sewage treatment tank, including a filter sedimentation tank 1, an anaerobic tank 2 is arranged on one side of the filter sedimentation tank 1, and the anaerobic tank 2 One side is provided with an aerobic tank 3, one side of the aerobic tank 3 is provided with a disinfection tank 4, one side of the disinfection tank 4 is provided with a clear water tank 5, the upper end of the filter sedimentation tank 1 is provided with a filter basket 6, A lifting plate 7 is installed on the upper end, a water inlet 8 is arranged in the middle of the upper end of the lifting plate 7, a first sedimentation tank 9 is arranged on one side of the bottom end of the filtration sedimentation tank 1, and a first sedimentation tank 9 is arranged on the other side of the inner bottom end of the filtration sedimentation tank 1. The second sedimentation tank 10, the lower ends of the first sedimentation tank 9 and the second sedimentation tank 10 are all provided with a first sludge discharge pipe 11, and the lower end of the first sludge discharge pipe 11 is equipped with a second sludge discharge pipe 12, and the first row The mud pipe 11 and the second mud discharge pipe 12 are both located outside the filter sedimentation tank 1. The lower ends of the outer sides of the filter sedimentation tank 1 are equipped with legs 13, and the legs 13 are welded to the filter sedimentation tank 1. The sewage passes through the water inlet 8 Enter the interior of the filter sedimentation tank 1, filter out the internal large-particle impurities through the filter basket 6, and the filtered sewage passes through the first sedimentation tank 9 and the second sedimentation tank 10 to settle the internal sludge, and is connected through the second sludge discharge pipe 12. Sludge pump discharge.

Further, the interior of the anaerobic tank 2 is provided with a partition 14, and one side of the partition 14 is provided with anaerobic bacteria 15. The anaerobic tank 2 utilizes the effect of the anaerobic bacteria 15 to hydrolyze, acidify and methanize organic matter, and remove the Organic matter in sewage, and improve the biodegradability of sewage, which is beneficial to subsequent aerobic treatment.

Further, aerobic activated sludge 17 is provided inside the aerobic pool 3, an aeration pipe 18 is installed at the bottom end of the aerobic pool 3, and an aeration fan 19 is installed at the rear of the aerobic pool 3. An air intake pipe 20 is installed between the aerobic pools 3, and one end of the air intake pipe 20 is connected with the aeration fan 19 through a flange, and the oxygen content inside the aerobic pool 3 is controlled by the aeration pipe 18 to ensure the maximum benefit of microorganisms. Aerobic respiration.

Further, a motor 21 is installed in the middle of the upper end of the disinfection tank 4, a stirring rod 22 is installed on the lower end of the motor 21, and the stirring rod 22 is connected with the motor 21 through a coupling, and the stirring rod 22 is driven by the motor 21 to stir the sewage, so that the disinfection agent mixed with sewage.

Further, one side of the upper end of the disinfection tank 4 is provided with a disinfectant dosing port 23, and corresponding disinfectant is added through the disinfectant dosing port 23.

Further, a fourth overflow weir 26 is arranged between the filtration sedimentation tank 1 and the anaerobic tank 2, a first overflow weir 16 is arranged between the anaerobic tank 2 and the aerobic tank 3, the aerobic tank 3 and the disinfection tank 4 There is a second overflow weir 24 therebetween, and a third overflow weir 25 is arranged between the disinfection tank 4 and the clean water tank 5, which reduces the number of pumps used and thus reduces the operating cost.

Working principle: During use, the sewage enters the filter sedimentation tank 1 through the water inlet 8, and the internal large-particle impurities are filtered out through the filter basket 6. The filter basket 6 can be pulled out through the lifting plate 7, which is convenient for the filter residue inside the filter basket 6. For treatment, the filtered sewage settles the internal sludge through the first sedimentation tank 9 and the second sedimentation tank 10, and is discharged through the second sludge discharge pipe 12 connected to the sludge pump, and the supernatant liquid enters through the fourth overflow weir 26. Inside the anaerobic tank 2, the anaerobic tank 2 utilizes the action of the anaerobic bacteria 15 to hydrolyze, acidify and methanize the organic matter, remove the organic matter in the sewage, and improve the biodegradability of the sewage, which is beneficial to the subsequent aerobic treatment , the sewage enters the inside of the aerobic tank 3 through the first overflow weir 16, and the aerobic activated sludge 17 in the aerobic tank 3 adsorbs and degrades the organic matter, so that the aerobic activated sludge 17 performs aerobic respiration, and further decomposes the organic matter Inorganic matter, remove most of the COD, ammonia nitrogen and other organic matter in the sewage, remove pollutants, control the oxygen content inside the aerobic tank 3 through the aeration pipe 18, ensure that the microorganisms perform aerobic respiration with the greatest benefit, and the sewage passes through the second The overflow weir 24 enters the interior of the disinfection tank 4, and the corresponding disinfectant, such as sodium hypochlorite, liquid chlorine or calcium hypochlorite, is added through the disinfectant dosing port 23, and the stirring rod 22 is driven by the motor 21 to stir the sewage, so that the disinfection is carried out. The sewage is mixed with the sewage to disinfect and kill the pathogenic microorganisms in the treated sewage. The overall sewage treatment tank has a better treatment effect on the sewage. The treated sewage enters the clear water tank 5 through the third overflow weir 25, which can be Discharge.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. The utility model provides a multistage sewage treatment pond, includes filtering sedimentation tank (1), its characterized in that: an anaerobic tank (2) is arranged on one side of the filtering and settling tank (1), an aerobic tank (3) is arranged on one side of the anaerobic tank (2), a disinfection tank (4) is arranged on one side of the aerobic tank (3), a clean water tank (5) is arranged on one side of the disinfection tank (4), a filter basket (6) is installed on the upper end of the filtering and settling tank (1), a lifting plate (7) is installed on the upper end of the filter basket (6), a water inlet (8) is formed in the middle of the upper end of the lifting plate (7), a first settling tank (9) is arranged on one side of the inner bottom of the filtering and settling tank (1), a second settling tank (10) is arranged on the other side of the inner bottom of the filtering and settling tank (1), a first sludge discharge pipe (11) is installed at the lower ends of the first settling tank (9) and the second settling tank (10), a second sludge discharge pipe (12) is installed at the lower end of the first sludge, and first mud pipe (11) and second mud pipe (12) all are located the outside of filtering sedimentation tank (1), stabilizer blade (13) are all installed to the lower extreme of filtering sedimentation tank (1) outside both sides, and stabilizer blade (13) and filtering sedimentation tank (1) welded connection.

2. A multistage wastewater treatment basin according to claim 1, characterized in that: the anaerobic tank is characterized in that a partition plate (14) is arranged inside the anaerobic tank (2), and anaerobic bacteria (15) are arranged on one side of the partition plate (14).

3. A multistage wastewater treatment basin according to claim 1, characterized in that: the aerobic activated sludge aeration device is characterized in that aerobic activated sludge (17) is arranged in the aerobic tank (3), an aeration pipe (18) is installed at the bottom end of the interior of the aerobic tank (3), an aeration fan (19) is installed at the rear of the aerobic tank (3), an air inlet pipe (20) is installed between the aeration fan (19) and the aerobic tank (3), and one end of the air inlet pipe (20) is connected with the aeration fan (19) through a flange.

4. A multistage wastewater treatment basin according to claim 1, characterized in that: the motor (21) is installed to the centre of disinfection pond (4) upper end, puddler (22) are installed to the lower extreme of motor (21), and puddler (22) pass through the coupling joint with motor (21).

5. A multistage wastewater treatment basin according to claim 1, characterized in that: and a disinfectant adding port (23) is formed in one side of the upper end of the disinfection tank (4).

6. A multistage wastewater treatment basin according to claim 1, characterized in that: be provided with fourth weir crest (26) that overflows between filter sedimentation tank (1) and anaerobism pond (2), be provided with first weir crest (16) that overflows between anaerobism pond (2) and good oxygen pond (3), be provided with second weir crest (24) that overflows between good oxygen pond (3) and disinfection pond (4), be provided with third weir crest (25) that overflows between disinfection pond (4) and clean water basin (5).

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