CN222574450U

CN222574450U - Efficient integrated treatment device for town sewage

Info

Publication number: CN222574450U
Application number: CN202421313486.XU
Authority: CN
Inventors: 蒋元奎; 李溯; 许东升
Original assignee: Sihong Water Affairs Co ltd
Current assignee: Sihong Water Affairs Co ltd
Priority date: 2024-06-11
Filing date: 2024-06-11
Publication date: 2025-03-07
Anticipated expiration: 2034-06-11

Abstract

The utility model discloses an efficient integrated urban sewage treatment device which comprises an adjusting tank, wherein an AAO sewage treatment mechanism is arranged at the rear end of the adjusting tank, a sedimentation tank is arranged at the rear end of the AAO sewage treatment mechanism, a pre-denitrification tank is arranged at the front end of the AAO sewage treatment mechanism, an anaerobic tank is arranged at the rear end of the pre-denitrification tank, an anoxic tank is arranged at the rear end of the anaerobic tank, a conveying pipe is arranged between the adjacent pre-denitrification tank, the anaerobic tank, the anoxic tank and the aerobic tank, a first pump is arranged outside the conveying pipe, an aeration main pipe is arranged at one side of the AAO sewage treatment mechanism, a blower is arranged at one end of the aeration main pipe, and a first aeration branch pipe and a second aeration branch pipe are respectively arranged at the air outlet end of the aeration main pipe, so that the problem that pollutants such as nitrogen and phosphorus in water are difficult to be effectively removed due to single treatment structure of the sewage device is solved.

Description

Efficient integrated treatment device for town sewage

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a town sewage high-efficiency integrated treatment device.

Background

A sewage treatment apparatus is a facility for treating wastewater containing organic substances, inorganic substances, impurities, and the like. The sewage treatment device has the main effects of converting the wastewater into reusable water resources through the process flows of filtration, separation, chemical reaction and the like, so as to reduce pollution emission, improve environmental quality and protect ecological environment, and the sewage treatment device reduces the content of harmful substances in the wastewater and reduces the emission of pollutants through effectively treating the wastewater, thereby reducing the pollution pressure to the environment.

For example, the chinese issued patent CN212396106U entitled "high-efficiency low-consumption integrated treatment device for urban sewage" includes a supporting mechanism, and further includes a first cleaning mechanism and a second cleaning mechanism for filtering solid waste, a filtering barrel for filtering sewage, an extrusion mechanism, and a transmission mechanism for converting water potential energy into kinetic energy, where the first cleaning mechanism, the second cleaning mechanism and the extrusion mechanism are disposed inside the supporting mechanism. According to the utility model, the first cleaning mechanism and the second cleaning mechanism can be used for filtering particles in the wastewater in a segmented manner, so that solid particles are effectively collected, and the wastewater filtered with the solid particles can be purified by matching the filtering barrel with the extrusion mechanism, so that the cleanliness of discharged water is ensured.

Although the prior art can realize the treatment of town sewage, the treatment structure is single, and pollutants such as nitrogen and phosphorus in water are difficult to effectively remove, so that the water treatment quality is affected, the prior requirements are not met, and the efficient integrated treatment device for town sewage is provided.

Disclosure of utility model

The utility model aims to provide an efficient integrated treatment device for town sewage, which solves the problem that the sewage device provided in the background art is difficult to effectively remove pollutants such as nitrogen and phosphorus in water due to single treatment structure.

In order to achieve the purpose, the utility model provides the technical scheme that the town sewage high-efficiency integrated treatment device comprises an adjusting tank, wherein the rear end of the adjusting tank is provided with an AAO sewage treatment mechanism, the rear end of the AAO sewage treatment mechanism is provided with a sedimentation tank, and the device further comprises:

The pre-denitrification tank is arranged at the front end of the AAO sewage treatment mechanism, an anaerobic tank is arranged at the rear end of the pre-denitrification tank, an anoxic tank is arranged at the rear end of the anaerobic tank, an aerobic tank is arranged at the rear end of the anoxic tank, a conveying pipe is arranged between the adjacent pre-denitrification tank, the anaerobic tank, the anoxic tank and the aerobic tank, and a first pump is arranged outside the conveying pipe;

The aeration main pipe is arranged on one side of the AAO sewage treatment mechanism, one end of the aeration main pipe is provided with a blower, the blower is fixed with the AAO sewage treatment mechanism, the air outlet end of the aeration main pipe is respectively provided with a first aeration branch pipe and a second aeration branch pipe, the first aeration branch pipe is positioned in the regulating tank, and the second aeration branch pipe is positioned in the aerobic tank.

Preferably, stirring motors are fixedly installed on two sides of the upper end face of the regulating tank, a stirring shaft is installed on an output shaft of each stirring motor, the stirring shaft is located inside the regulating tank, and stirring blades are fixedly installed on the outer portion of each stirring shaft.

Preferably, the rear end of sedimentation tank is provided with the filtering pond, the inside rotation of filtering pond is installed the driving roller, the outside of driving roller is equipped with the rim plate that a plurality of equidistance were installed, the inside of rim plate is equipped with six at least and is fan-shaped annular filter screens that distribute.

Preferably, a gear motor is fixedly arranged on the upper end face of the filter tank, a transmission mechanism is arranged at the rear end of the gear motor, a driving wheel fixed with an output shaft of the gear motor is arranged in the transmission mechanism, and the driving wheel is connected with one end of a driving roller through a chain belt.

Preferably, the rear end of the filter tank is provided with a sterilizing tank, the upper end of the sterilizing tank is provided with a dosing port, the lower part of the rear end of the sterilizing tank is provided with a drain pipe, and the top of the inner cavity of the sterilizing tank is provided with an ultraviolet sterilizing lamp.

Preferably, the regulating tank and the pre-denitration tank, the aerobic tank, the sedimentation tank, the filter tank and the disinfection tank are all communicated through connecting pipes, and a second pump is arranged outside the connecting pipes.

Preferably, the conveying pipe for connecting the anoxic tank and the aerobic tank is switched under two working conditions of conveying and backflow.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model adopts AAO sewage treatment technology, is provided with a pre-denitrification tank, an anaerobic tank, an anoxic tank and an aerobic tank, and realizes the high-efficiency removal of nitrogen and phosphorus through the biological treatment of anaerobic, anoxic and aerobic stages. In the anaerobic stage, the phosphorus accumulating bacteria release phosphorus, in the anoxic stage, the denitrifying bacteria convert nitrate into nitrogen to realize denitrification, in the aerobic stage, the phosphorus accumulating bacteria absorb phosphorus in an excessive amount, and the phosphorus is removed through the discharge of residual sludge, so that the nitrogen and phosphorus content in effluent can be obviously reduced, the problem of eutrophication of water is relieved, the anoxic tank and the aerobic tank can mutually utilize the products of the other side, and the efficient utilization of energy is realized, for example, the denitrification reaction in the anoxic tank can utilize nitrate generated in the aerobic tank, and the nitrification reaction in the aerobic tank can utilize organic carbon sources generated in the anoxic tank. The energy utilization mode reduces the energy consumption in the treatment process and improves the overall energy efficiency.

2. According to the utility model, the regulating tank is provided, the stirring mechanism and the aeration mechanism are arranged in the regulating tank, the stirring blades rotate to fully mix substances in the sewage, so that the homogenization of water quality is realized, a stable water inlet condition is provided for a subsequent treatment process, suspended substances in the sewage can be prevented from precipitating in the regulating tank by stirring, the stability of the water quality in the tank is maintained, the aeration mechanism can increase dissolved oxygen in the regulating tank, sufficient oxygen is provided for microorganisms in the water, the biological reaction is promoted, the growth and propagation of aerobic microorganisms are facilitated, the biological treatment effect is improved, the peculiar smell and pigment in the sewage are removed, and the water quality is improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a top view showing the internal structure of the regulating reservoir of the present utility model;

fig. 4 is a schematic diagram of a wheel disc structure according to the present utility model.

In the figure, 1, an adjusting tank, 2, a pre-denitration tank, 3, an anaerobic tank, 4, an anoxic tank, 5, an aerobic tank, 6, a sedimentation tank, 7, a filter tank, 8, a disinfection tank, 9, a drain pipe, 10, an aeration main pipe, 11, a conveying pipe, 12, a first pump, 13, a gear motor, 14, a transmission mechanism, 15, a dosing port, 16, a stirring motor, 17, a stirring shaft, 18, stirring blades, 19, a first aeration branch pipe, 20, a second aeration branch pipe, 21, a connecting pipe, 22, a second pump, 23, a transmission roller, 24, a wheel disc, 25, a chain belt, 26 and a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, the utility model provides an embodiment of a town sewage high-efficiency integrated treatment device, which comprises an adjusting tank 1, wherein an AAO sewage treatment mechanism is arranged at the rear end of the adjusting tank 1, a sedimentation tank 6 is arranged at the rear end of the AAO sewage treatment mechanism, and the utility model further comprises:

The pre-denitrification tank 2 is arranged at the front end of the AAO sewage treatment mechanism, the rear end of the pre-denitrification tank 2 is provided with an anaerobic tank 3, the rear end of the anaerobic tank 3 is provided with an anoxic tank 4, the rear end of the anoxic tank 4 is provided with an aerobic tank 5, a conveying pipe 11 is arranged among the adjacent pre-denitrification tank 2, the anaerobic tank 3, the anoxic tank 4 and the aerobic tank 5, and a first pump 12 is arranged outside the conveying pipe 11;

The aeration main pipe 10 is arranged on one side of the AAO sewage treatment mechanism, a blower is arranged at one end of the aeration main pipe 10, the blower is fixed with the AAO sewage treatment mechanism, a first aeration branch pipe 19 and a second aeration branch pipe 20 are respectively arranged at the air outlet end of the aeration main pipe 10, the first aeration branch pipe 19 is positioned in the regulating tank 1, and the second aeration branch pipe 20 is positioned in the aerobic tank 5.

The sewage firstly enters a pre-denitrification tank 2, the sludge and the sewage are mixed under the anoxic condition, nitrate and oxygen are fully removed under the anoxic condition, meanwhile, the process of anaerobic phosphorus release of phosphorus accumulating bacteria is enhanced, the sewage passing through the pre-denitrification tank enters the anaerobic tank, in the anaerobic tank 3, the sewage is in a state without molecular oxygen and nitrate nitrogen, the facultative anaerobe converts biodegradable organic matters in the sewage into volatile fatty acids, the phosphorus accumulating bacteria releases phosphorus and absorbs easily degradable organic matters such as low-grade fatty acids, and the like, after entering the anoxic tank 4, the denitrifying bacteria convert nitrate brought by internal reflux into nitrogen through biological denitrification, so as to achieve the aim of denitrification, finally, the denitrifying bacteria convert ammonia nitrogen in the sewage and ammonia nitrogen formed by organic nitrogen into nitrate through biological nitrification, and meanwhile, the phosphorus accumulating bacteria excessively absorbs phosphorus and removes phosphorus through the discharge of residual sludge.

Referring to fig. 2 and 3, stirring motors 16 are fixedly installed on two sides of the upper end face of the adjusting tank 1, a stirring shaft 17 is installed on an output shaft of each stirring motor 16, the stirring shaft 17 is located inside the adjusting tank 1, stirring blades 18 are fixedly installed outside the stirring shaft 17, water quality homogenization is facilitated, stable water inlet conditions are provided for the subsequent treatment process, suspended matters in sewage can be prevented from precipitating in the adjusting tank through stirring, and stability of water quality in the tank is maintained.

Please refer to fig. 1. In fig. 2 and fig. 4, the rear end of the sedimentation tank 6 is provided with a filter tank 7, a driving roller 23 is rotatably mounted in the filter tank 7, a plurality of equidistant wheel discs 24 are mounted outside the driving roller 23, at least six filter screens 26 which are distributed in a fan-shaped annular shape are arranged in the wheel discs 24, impurities and suspended matters in water can be effectively filtered, and the water quality of discharged water is improved.

Referring to fig. 2, a gear motor 13 is fixedly mounted on the upper end surface of the filter tank 7, a transmission mechanism 14 is arranged at the rear end of the gear motor 13, a driving wheel fixed with an output shaft of the gear motor 13 is mounted in the transmission mechanism 14, and the driving wheel is connected with one end of a driving roller 23 through a chain belt 25, so that the wheel disc 24 rotates, and efficient filtration is realized.

Referring to fig. 2, a disinfection tank 8 is arranged at the rear end of the filter tank 7, a dosing port 15 is arranged at the upper end of the disinfection tank 8, a drain pipe 9 is arranged below the rear end of the disinfection tank 8, an ultraviolet disinfection lamp is arranged at the top of an inner cavity of the disinfection tank 8, a disinfectant (such as chloride, ozone and the like) is added into the disinfection tank 8 through the dosing port 15, and reacts with organic substances and microorganisms in water to kill or inhibit the activity of the organic substances and microorganisms, and the ultraviolet disinfection lamp further kills pathogens in the water. Ultraviolet rays can destroy the DNA structure of microorganisms, prevent the microorganisms from propagating and growing, and achieve the disinfection effect.

The sewage is collected by a drainage system, enters a grid well of a sewage treatment station, enters an adjusting tank 1 after particulate impurities are removed, and is subjected to homogenization average quantity, a pre-aeration system is arranged in the adjusting tank, after adjustment, the sewage enters a pre-denitrification tank 2, acidification hydrolysis and nitrification denitrification are performed, the concentration of organic matters is reduced, partial ammonia nitrogen is removed, the sewage flows into an O-level biological contact oxidation tank to perform aerobic biochemical reaction, most of organic pollutants are degraded through biological oxidation and adsorption, the sewage enters a sedimentation tank 6 to perform solid-liquid separation after being treated, enters a filter tank 7, a speed reducing motor 13 is started to drive a driving wheel in a driving mechanism 14 to rotate, so that a driving roller 23 is driven to rotate under the transmission of a chain belt 25, the rotation of an external rotary disk 24 is realized, the water forms a layer of film on a filter screen 26 of the rotary disk 24, and is subjected to the effect of centrifugal force, so that the particulate matters in the water are intercepted by the filter screen 26, the filtered dry water enters a disinfection tank 8 through the filter screen, and is contacted and dissolved by chlorine adding sheets, and the harmful bacteria in the water reach the standard and is discharged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The town sewage high-efficiency integrated treatment device comprises an adjusting tank (1), wherein an AAO sewage treatment mechanism is arranged at the rear end of the adjusting tank (1), and a sedimentation tank (6) is arranged at the rear end of the AAO sewage treatment mechanism;

It is characterized in that the method also comprises the following steps:

The pre-denitrification tank (2) is arranged at the front end of the AAO sewage treatment mechanism, an anaerobic tank (3) is arranged at the rear end of the pre-denitrification tank (2), an anoxic tank (4) is arranged at the rear end of the anaerobic tank (3), an aerobic tank (5) is arranged at the rear end of the anoxic tank (4), a conveying pipe (11) is arranged between the pre-denitrification tank (2), the anaerobic tank (3), the anoxic tank (4) and the anoxic tank (5) adjacently, and a first pump (12) is arranged outside the conveying pipe (11);

The aeration main pipe (10) is arranged on one side of the AAO sewage treatment mechanism, the air blower is arranged at one end of the aeration main pipe (10), the air blower is fixed with the AAO sewage treatment mechanism, the air outlet end of the aeration main pipe (10) is respectively provided with a first aeration branch pipe (19) and a second aeration branch pipe (20), the first aeration branch pipe (19) is positioned in the regulating tank (1), and the second aeration branch pipe (20) is positioned in the aerobic tank (5).

2. The town sewage high-efficiency integrated treatment device according to claim 1, wherein stirring motors (16) are fixedly arranged on two sides of the upper end face of the regulating tank (1), stirring shafts (17) are arranged on output shafts of the stirring motors (16), the stirring shafts (17) are located in the regulating tank (1), and stirring blades (18) are fixedly arranged outside the stirring shafts (17).

3. The town sewage high-efficiency integrated treatment device according to claim 1, wherein a filter tank (7) is arranged at the rear end of the sedimentation tank (6), a driving roller (23) is rotatably arranged in the filter tank (7), a plurality of equally spaced wheel discs (24) are arranged outside the driving roller (23), and at least six filter screens (26) distributed in a fan-shaped annular shape are arranged in the wheel discs (24).

4. The town sewage high-efficiency integrated treatment device according to claim 3, wherein a gear motor (13) is fixedly arranged on the upper end surface of the filter tank (7), a transmission mechanism (14) is arranged at the rear end of the gear motor (13), a driving wheel fixed with the output shaft of the gear motor (13) is arranged in the transmission mechanism (14), and the driving wheel is connected with one end of a driving roller (23) through a chain belt (25).

5. The town sewage high-efficiency integrated treatment device according to claim 3, wherein a disinfection tank (8) is arranged at the rear end of the filter tank (7), a dosing port (15) is arranged at the upper end of the disinfection tank (8), a drain pipe (9) is arranged below the rear end of the disinfection tank (8), and an ultraviolet disinfection lamp is arranged at the top of an inner cavity of the disinfection tank (8).

6. The town sewage high-efficiency integrated treatment device according to claim 5, wherein the regulating tank (1) and the pre-denitrification tank (2), the aerobic tank (5), the sedimentation tank (6), the filter tank (7) and the disinfection tank (8) are all communicated through a connecting pipe (21), and a second pump (22) is arranged outside the connecting pipe (21).

7. The town sewage high-efficiency integrated treatment device according to claim 1, wherein a conveying pipe (11) for connecting the anoxic tank (4) and the aerobic tank (5) is switched under two working conditions of conveying and backflow.