CN215855520U

CN215855520U - High-efficiency integrated domestic sewage treatment device

Info

Publication number: CN215855520U
Application number: CN202122220388.4U
Authority: CN
Inventors: 樊青山; 王先杰
Original assignee: Henan Zhongchuang Construction Engineering Co ltd
Current assignee: Henan Zhongchuang Construction Engineering Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-18
Anticipated expiration: 2031-09-14

Abstract

A high-efficient integrated domestic sewage treatment plant, discharge the sewage after gathering into the primary sedimentation tank, the primary sedimentation tank carries on water regulation, equilibrium water quality and preconditioning to the sewage, then enter the tertiary oxidation pond through the lift pump or flowing automatically, the tertiary oxidation pond of the aerobic treatment process has raised the treatment efficiency, the water after oxidizing the pond and treating flows into the secondary sedimentation tank and further deposits the impurity, the water quality is obviously improved, the upper clear water enters the clean water basin after the disinfection treatment of the disinfection pond; the multistage precipitation and oxidation treatment process has good treatment effect and high efficiency, and can degrade the content of nitrogen and phosphorus in the sewage to the maximum extent; the fiber filter material in the filter tank of the sewage treatment device is used for filtering out the residual suspended impurities in the sewage, the lifting driver arranged at the upper end of the filter tank drives the lower filter plate to move up and down through the lifting shaft, the compaction degree and the looseness degree of the fiber filter material are adjusted, the requirement of backwashing looseness of the fiber filter material is met, the compaction degree of the fiber filter material can be conveniently adjusted, and the finished water with different qualities is produced.

Description

High-efficiency integrated domestic sewage treatment device

Technical Field

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

Background

Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. A large amount of sewage is generated in industrial production and life, and if the sewage is not treated in time, the sewage can cause serious pollution to the environment; in the prior art, after domestic sewage is converged, a mature process-a biological contact oxidation method can be adopted for treatment, but the content of N, P in raw water is higher, N, P content is difficult to degrade by adopting a general sewage treatment process, if the raw water is directly discharged, eutrophication pollution can still be caused to water bodies, part of metal salt is suspended in water in the form of tiny particles, and the metal salt is difficult to settle down by overcoming the buoyancy of the water. Although a part of the metal salt is flocculated or coagulated, the particles are smaller, the specific gravity difference relative to water is smaller, the downward sedimentation speed is slow, and the metal salt is suspended in the water and drained away in the solid-liquid separation process under the influence of the upward flow of the whole water, so the sewage treatment effect is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a high-efficiency integrated domestic sewage treatment device.

The technical scheme of the utility model is as follows: the utility model provides a high-efficient integration sewage treatment unit, includes sedimentation tank, oxidation pond, filtering ponds, characterized by: the sedimentation tank include just heavy pond and two heavy ponds, the oxidation pond includes one-level oxidation pond, the second grade oxidation pond, tertiary oxidation pond, three oxidation pond sets up side by side, be equipped with the water gap intercommunication between the lower part of each oxidation pond, all be equipped with the filler in each oxidation pond, just heavy pond setting is in one side of three oxidation pond, be equipped with the water inlet between the upper portion of this just heavy pond and one-level oxidation pond, two heavy ponds are established at the opposite side of three oxidation pond, two heavy ponds and the tertiary oxidation pond upper portion that corresponds between be equipped with the water inlet, the filter pond is close to the opposite side in two heavy ponds, the middle part of filter pond is equipped with, lower filter plate, be filled with the fibre filter material between two filter plates, the upper portion of filter pond is equipped with the delivery port and enters into the disinfection pond that one side set up through the pipeline, it lets in the clean water basin to be equipped with the pipeline in the disinfection pond.

Preferably, go up the filter establish to the fixed plate, the filter establishes to the fly leaf down, is connected with electronic regulator on this fly leaf, the device is including fixing lift driver, the lift axle in the middle of the top of the pool of filtering ponds, the lift driver passes through sliding support and filtering ponds fixed connection, the vertical setting of lift axle is in filtering ponds and the center fixed connection of its lower extreme and filter down, the lift epaxial end stretches into in the lift driver.

Preferably, the bottom of the primary sedimentation tank and the bottom of the secondary sedimentation tank are both provided with sludge pumps, and the sludge pumps are connected with sludge pipelines and are connected with the sludge tanks through pipelines.

Preferably, the sewage treatment device is internally provided with an aeration device which comprises an air blower, a gas pipeline and an aeration pipe, the gas pipeline is connected with an outlet of the air blower, the aeration pipe is arranged on each of the three oxidation ponds, the back flushing gas pipes are arranged at the bottoms of the fiber filter materials of the filter ponds, and the aeration pipes and the back flushing gas pipes are connected with the gas pipeline through branch pipes.

Preferably, the bottom of the primary sedimentation tank is provided with an aeration pipe which is connected with a gas pipeline through a branch pipe.

Preferably, the filler is elastic filler which is easy to form a film, easy to demould, light in weight, high in strength, corrosion-resistant and high in void ratio.

The beneficial technical effects of the utility model are as follows: the sewage treatment device discharges the collected sewage into the primary sedimentation tank, the primary sedimentation tank adjusts the water quantity, balances the water quality and pretreats the sewage, and then the sewage enters the tertiary oxidation tank through the lifting water pump or automatically flows, the treatment efficiency is improved by the tertiary oxidation tank of the aerobic treatment process, the water treated by the oxidation tank flows into the secondary sedimentation tank to further precipitate impurities, the water quality is obviously improved, and the clear water at the upper part enters the clear water tank after the disinfection treatment of the disinfection tank; the multistage precipitation and oxidation treatment process has good treatment effect and high efficiency, and can degrade the content of nitrogen and phosphorus in the sewage to the maximum extent.

The sewage treatment device is characterized in that a filtering tank is arranged between a secondary sedimentation tank and a clean water tank, fiber filter materials in the filtering tank are used for filtering out residual suspended matters in sewage, a lifting driver is arranged at the upper end of the filtering tank, the driver drives the lower filter plate to move up and down through a lifting shaft, the compactness and the looseness of the fiber filter materials are adjusted, the requirement of backwashing looseness of the fiber filter materials is met, the compaction degree of the fiber filter materials can be conveniently adjusted, and finished water with different qualities is produced.

Drawings

FIG. 1 is a schematic diagram of the system architecture of the present invention;

FIG. 2 is a plan view of the present invention;

fig. 3 is a schematic structural view of the lift drive of the present invention.

In the figure, 11, a primary sedimentation tank, 111, a water inlet, 12, a secondary sedimentation tank, 13, a primary oxidation tank, 14, a secondary oxidation tank, 15, a tertiary oxidation tank, 151, a water outlet, 152, a water passing port, 153, a filler, 16, a filter tank, 161, an upper filter plate, 162, a lower filter plate, 163, a fiber filter material, 17, a disinfection tank, 171, a clean water tank, 181, a lifting driver, 182, a lifting shaft, 183, a sliding support, 19, a sludge pump, 191, a sludge pipe, 211, a blower, 212, a gas pipeline, 213, an aeration pipe, 214, a backwashing gas pipe, 22, a valve well, 23 and sodium hypochlorite.

Detailed Description

In the first embodiment, referring to the attached figures 1-3 of the specification, a high-efficiency integrated domestic sewage treatment device comprises a sedimentation tank, an oxidation tank and a filtration tank, wherein the sedimentation tank comprises a primary sedimentation tank and a secondary sedimentation tank, the oxidation tank comprises a primary oxidation tank, a secondary oxidation tank and a tertiary oxidation tank, the three oxidation tanks are arranged side by side, water passing ports are formed in the lower parts of the oxidation tanks and communicated with each other, fillers are arranged in the oxidation tanks, the primary sedimentation tank is arranged on one side of the three oxidation tanks, a water inlet is formed between the upper parts of the primary sedimentation tank and the primary oxidation tank, sewage enters a sewage blocking grid and a domestic sewage adjusting tank in sequence for sewage treatment before entering the primary sedimentation tank, and each oxidation tank is also a biological contact oxidation tank;

the two-stage sedimentation tank is arranged at the other side of the three oxidation tanks, a water inlet is arranged between the upper part of the two-stage sedimentation tank and the upper part of the corresponding three-stage oxidation tank, the filtering tank is close to the other side of the two-stage sedimentation tank, an upper filtering plate and a lower filtering plate are arranged at the middle part of the filtering tank, fiber filtering materials are filled between the two filtering plates, a water outlet is arranged at the upper part of the filtering tank, the upper part of the filtering tank enters a disinfection tank arranged at one side through a pipeline, a pipeline is arranged in the disinfection tank and is led into a clean water tank, and the disinfection mode is that solid chlorine tablets are added to dissolve and disinfect. Various pathogenic bacteria can be effectively killed through disinfection, and the effluent bacteriological indexes are ensured to meet corresponding standards.

The fiber filter material is polypropylene fiber which can resist the high temperature of 80 ℃, and has strong resistance to various alkalis and non-oxidizing acids. Under normal conditions, the sewage interception capacity of the fiber filter material is 8-10 kg/m³(Filter material). The sewage interception capacity is 2-4 times of that of a traditional sand filter under the same inlet water turbidity condition, the operation period of the filter is prolonged, the outlet water turbidity can be controlled below 1FTU, and the suspended matter removal rate can reach 100%. Meanwhile, colloid, macromolecular organic matters, bacteria, viruses and the like in water are removed to different degrees.

When the quality of the discharged water is poor or the pressure difference between the upstream side and the downstream side of the water outlet reaches a set value, the device starts a backwashing system, a lifting shaft loosens the fiber filter material through a lower filter plate, a backwashing water source enters, backwashing can also be carried out in a water-gas combined mode, and the effect is better. The average pressure head loss of the fiber filter period is generally 0.05-0.2 MPa, and the maximum pressure head loss is not more than 0.2 MPa. The cleaning flow rate of the fiber filter is generally 20-30 m/h, the air pressure is less than 0.1MPa, the air flow is generally controlled at 50-60L/m 2 & s, and the cleaning time is 15-25 min.

Go up the filter establish to the fixed plate, the filter establishes to the fly leaf down, is connected with electronic regulator on this fly leaf, the device is including fixing lift driver, the lift axle in the middle of the pond top of filtering ponds, the lift driver passes through sliding support and filtering ponds fixed connection, the vertical setting of lift axle is in filtering ponds and the center fixed connection of its lower extreme and filter down, the lift epaxial end stretches into in the lift driver.

The bottoms of the primary sedimentation tank and the secondary sedimentation tank are respectively provided with a sludge pump, and the sludge pumps are connected with a sludge pipeline and are connected with the sludge tank through pipelines; the sewage treatment device is internally provided with an aeration device which comprises an air blower, a gas pipeline and an aeration pipe, wherein the gas pipeline is connected with an outlet of the air blower, the aeration pipe is arranged in each of the three oxidation ponds, the back flushing gas pipe is arranged at the bottom of the fiber filter material of each filter pond, and the aeration pipes and the back flushing gas pipes are connected through branch pipes and the gas pipelines.

The design adopts compressed air for back flushing, and the air source is from a blower for aeration in the system, so that the equipment investment cost is not increased.

The bottom of the primary sedimentation tank is provided with an aeration pipe which is connected with a gas pipeline through a branch pipe; the filler is an elastic filler which is easy to form a film, easy to demould, light in weight, high in strength, corrosion-resistant and high in void ratio.

The working process and principle of the utility model are as follows:

before the domestic sewage enters the sewage treatment device, the domestic sewage enters an anaerobic tank to carry out an anaerobic biochemical treatment process, the process mainly has the effects of degrading macromolecular organic matters which are difficult to treat, reducing the load of subsequent treatment facilities and providing guarantee for improving the water quality, and elastic fillers which are easy to form a film, easy to demould, light, high in strength, corrosion-resistant and high in void ratio are selected as fillers of the anaerobic tank;

anaerobic effluent enters an oxidation tank after passing through a primary sedimentation tank, the biological contact oxidation tank is an aerobic treatment process, has higher treatment efficiency, is a core part of domestic sewage treatment, and directly determines the quality of treatment facility effect by the operation effect, so the aerobic treatment process of a three-stage oxidation tank is adopted;

the effluent treated by the oxidation tank flows into a secondary sedimentation tank, impurities with good sedimentation performance are precipitated in the secondary sedimentation tank, the effluent quality is obviously improved, the supernatant water after precipitation flows into a filter tank from the bottom through a pipeline, the filter tank is a lower water inlet and an upper water outlet, the sewage entering from the lower part flows upwards through a fiber filter material, suspended matter impurities remaining in the sewage are filtered completely, a lifting driver is arranged at the upper end of the filter tank, the driver drives a lower filter plate to move up and down through a lifting shaft, the compactness and looseness of the fiber filter material are adjusted, the requirement of backwashing and loosening of the fiber filter material is met, the compaction degree of the fiber filter material can be conveniently adjusted, and finished water with different qualities is prepared; compared with the traditional filter tank with pebble, quartz sand, activated carbon and other filter materials, the filter tank has the advantages that backwashing is cleaner, and the defects of short service cycle of the filter materials, large water consumption for backwashing and the like are overcome.

Claims

1. The utility model provides a high-efficient integration sewage treatment unit, includes sedimentation tank, oxidation pond, filtering ponds, characterized by: the sedimentation tank include just heavy pond and two heavy ponds, the oxidation pond includes one-level oxidation pond, the second grade oxidation pond, tertiary oxidation pond, three oxidation pond sets up side by side, be equipped with the water gap intercommunication between the lower part of each oxidation pond, all be equipped with the filler in each oxidation pond, just heavy pond setting is in one side of three oxidation pond, be equipped with the water inlet between the upper portion of this just heavy pond and one-level oxidation pond, two heavy ponds are established at the opposite side of three oxidation pond, two heavy ponds and the tertiary oxidation pond upper portion that corresponds between be equipped with the water inlet, the filter pond is close to the opposite side in two heavy ponds, the middle part of filter pond is equipped with, lower filter plate, be filled with the fibre filter material between two filter plates, the upper portion of filter pond is equipped with the delivery port and enters into the disinfection pond that one side set up through the pipeline, it lets in the clean water basin to be equipped with the pipeline in the disinfection pond.

2. The high-efficiency integrated domestic sewage treatment device according to claim 1, wherein: go up the filter establish to the fixed plate, the filter establishes to the fly leaf down, is connected with electronic regulator on this fly leaf, the device is including fixing lift driver, the lift axle in the middle of the pond top of filtering ponds, the lift driver passes through sliding support and filtering ponds fixed connection, the vertical setting of lift axle is in filtering ponds and the center fixed connection of its lower extreme and filter down, the lift epaxial end stretches into in the lift driver.

3. The high-efficiency integrated domestic sewage treatment device according to claim 1, wherein: the bottom of the primary sedimentation tank and the bottom of the secondary sedimentation tank are both provided with sludge pumps, and the sludge pumps are connected with sludge pipelines and are connected with the sludge tanks through pipelines.

4. The high-efficiency integrated domestic sewage treatment device according to claim 1, wherein: the sewage treatment device is internally provided with an aeration device which comprises an air blower, a gas pipeline and an aeration pipe, wherein the gas pipeline is connected with an outlet of the air blower, the aeration pipe is arranged in each of the three oxidation ponds, the back flushing gas pipe is arranged at the bottom of the fiber filter material of each filter pond, and the aeration pipes and the back flushing gas pipes are connected through branch pipes and the gas pipelines.

5. The high-efficiency integrated domestic sewage treatment device according to claim 1, wherein: and the bottom of the primary sedimentation tank is provided with an aeration pipe which is connected with a gas pipeline through a branch pipe.

6. The high-efficiency integrated domestic sewage treatment device according to claim 1, wherein: the filler is an elastic filler which is easy to form a film, easy to demould, light in weight, high in strength, corrosion-resistant and high in void ratio.