CN216155584U - Micro-aerobic efficient household sewage treatment device - Google Patents
Micro-aerobic efficient household sewage treatment device Download PDFInfo
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- CN216155584U CN216155584U CN202121610030.6U CN202121610030U CN216155584U CN 216155584 U CN216155584 U CN 216155584U CN 202121610030 U CN202121610030 U CN 202121610030U CN 216155584 U CN216155584 U CN 216155584U
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Abstract
The utility model discloses a household sewage treatment device with micro-oxygen and high efficiency, belonging to the technical field of sewage treatment devices. The utility model comprises an outer barrel and an inner barrel, wherein the inner barrel consists of sewage reaction chambers with different functions, and a water passing structure and an air distribution structure are arranged between the inner barrels. The utility model adopts a sludge-membrane coupling sewage treatment process, a hydrolysis area, an anoxic area, a facultative area, an aerobic area and a precipitation area are sequentially arranged along the water inlet direction, the precipitation area and the hydrolysis area are refluxed through an air-lifting device, the air-lifting device lifts sludge water primarily concentrated by a sludge hopper to the hydrolysis area to realize sludge circulation, the water content of the air-lifted sludge is less than that of the sludge water inlet in the precipitation area, the utility model has simple structure and convenient and quick forming, and the sludge-membrane coupling sewage treatment process is convenient for quick formingThe effluent quality of the membrane coupling process is good; low dissolved oxygen and low energy consumption, can realize synchronous nitrification and denitrification and partial shortcut nitrification and denitrification, and can treat NH3The removal rate of-N, CODcr and TN is high, and the problems of sludge deposition, difficult updating of filler biomembrane, short flow and the like can be effectively solved.
Description
Technical Field
The utility model relates to the technical field of sewage treatment devices, in particular to a household sewage treatment device with micro-oxygen and high efficiency.
Background
In recent years, the pollution speed of rural water resources is obviously increased, the water environment condition is worried and worried, and the deterioration degree is more and more serious. At the present stage, escherichia coli, chemical oxygen demand, total phosphorus, ammonia nitrogen, a surfactant and the like are main causes of pollution of rural water environment, and with the promotion of rural dry toilet change policy, more and more villages are provided with septic tanks. The septic tank can realize the innoxious and minimizing of excrement and urine, can directly be used for the soil fertilization, but villagers prefer to use convenient chemical fertilizer more, so only a small part of excrement and urine is used for the soil, and more is the discharge water body, causes the pollution. Therefore, the advanced treatment of rural domestic water is of great importance, and a decentralized rural sewage treatment process plant can use an activated sludge process and an MBR process. The former has the common problems of large sludge yield, easy sludge deposition in equipment, and the latter has high price, large investment and complex structure, and is not suitable for individual rural households. The existing household type equipment on the market is mostly used for a pure membrane method, can effectively avoid the adverse effect of an activated sludge method and the high investment of MBR, but has the defects of insufficient biomass, difficult updating of biological membranes and easy short flow.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
Aiming at the defects and shortcomings in the prior art, the utility model provides a household sewage treatment device with micro-oxygen and high efficiency, the household sewage treatment device is simple in structure, convenient for rapid forming and installation, and good in water quality of water discharged by a mud-film coupling process; the method has the advantages of low dissolved oxygen and energy consumption, capability of realizing synchronous nitrification and denitrification and partial shortcut nitrification and denitrification, high removal rate of NH3-N, CODcr and TN, and capability of effectively solving the problems of sludge deposition, difficult updating of filler biomembrane, short flow and the like.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
the utility model relates to a micro-aerobic high-efficiency household sewage treatment device, which comprises an outer barrel and an inner barrel, wherein the inner barrel is tightly arranged in the outer barrel and consists of sewage reaction chambers with different functions, and a water passing structure and an air distribution structure are arranged between the inner barrels.
Furthermore, the outer barrel is a hollow outer barrel, the inner barrel is a fan-shaped barrel with uniform specification, the arc-shaped outer wall of the inner barrel is tightly attached to the inner wall of the outer barrel, a mud membrane coupling sewage treatment process is adopted for sewage treatment, five groups of inner barrels are arranged, a hydrolysis area, an anoxic area, a facultative area, an aerobic area and a precipitation area are sequentially arranged in the water inlet direction, a water inlet is formed in one end of the hydrolysis area, and a water outlet is formed in one end of the precipitation area.
Furthermore, the hydrolysis area, the anoxic area, the facultative area, the aerobic area and the precipitation area are communicated through a water passing structure, an air stripping device is arranged between the precipitation area and the hydrolysis area, a mud bucket is arranged at the bottom of the precipitation area, the air stripping device is used for lifting muddy water primarily concentrated by the mud bucket to the hydrolysis area to realize sludge circulation, and the water content of the air-stripped sludge is smaller than that of inlet sludge in the precipitation area.
Furthermore, the first inner barrel is connected with the second inner barrel through a union cap, the rear part of the second inner barrel is connected with a tee joint and extends into the lower part of the second inner barrel through a pipeline, and water flows into the lower part of the second inner barrel from the upper part of the first inner barrel through the pipeline, so that air blockage and short flow are avoided.
Furthermore, the cap inlet, the tee joint upper outlet and the pipeline lower outlet are provided with intercepting and anti-blocking devices.
Furthermore, the mud bucket is a collection structure with a certain angle.
Furthermore, a mixing device is arranged in the hydrolysis area and the anoxic area, and MBBR fillers with corresponding filling ratios are added in the facultative area and the aerobic area.
Furthermore, the device is provided with five sets of aeration devices, each aeration device comprises a T-shaped aeration pipe and a stop valve capable of adjusting air flow, the aeration amount of the hydrolysis area and the aeration amount of the anoxic area are small, the mixing and stirring are carried out, the facultative area and the aerobic area are approximately the same, under the action of pollutants, a concentration difference is formed, the sediment area carries out air stripping and backflow on muddy water to the hydrolysis area, and the backflow ratio is more than 200%.
Furthermore, the top of the facultative zone and the aerobic zone is provided with an interception net, so that the phenomenon that the liquid level in the equipment is too high and the filler is lost is avoided.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
the utility model is assembled by a hollow outer barrel and a plurality of fan-shaped inner barrels, the fan-shaped inner barrels are tightly connected and placed in the outer barrel to form sewage reaction chambers with different functions, the arc-shaped outer wall of the inner barrel is tightly attached to the inner wall of the outer barrel, sewage treatment adopts a mud film coupling process, a hydrolysis area, an anoxic area, a facultative area, an aerobic area and a precipitation area are sequentially arranged along the water inlet direction, all units are communicated by a water passing structure, the precipitation area and the hydrolysis area are refluxed by a gas stripping device, the bottom of the precipitation area is provided with a mud bucket, the gas stripping device lifts muddy water preliminarily concentrated by the mud bucket to the hydrolysis area to realize sludge circulation, the water content of the gas-stripped sludge is less than that of the water inlet sludge in the precipitation area, the utility model has simple structure and is convenient for rapid forming and installation, and the water outlet quality of the mud film coupling process is good; low dissolved oxygen and low energy consumption, can realize synchronous nitrification and denitrification and partial shortcut nitrification and denitrification, and can treat NH3The removal rate of-N, CODcr and TN is high, and the problems of sludge deposition, difficult updating of filler biomembrane, short flow and the like can be effectively solved.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a diagram of the internal components of the present invention;
fig. 3 is a diagram of a water interception structure of the present invention.
In the figure: 1. an outer tub; 2. an inner barrel; 21. a hydrolysis zone; 22. an anoxic zone; 23. a facultative zone; 24. an aerobic zone; 25. a settling zone; 26. a water inlet; 27. a water outlet; 3. a water passing structure; 4. a gas distribution structure; 41. a gas stripping device; 42. an aeration device; 5. a mud bucket; 6. and (5) intercepting a net.
Detailed Description
The utility model is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1-3, the micro-aerobic efficient domestic sewage treatment device of the present embodiment comprises an outer barrel 1 and an inner barrel 2, wherein the inner barrel 2 is tightly placed in the outer barrel 1, the inner barrel 2 is composed of sewage reaction chambers with different functions, and a water passing structure 3 and an air distribution structure 4 are arranged between the inner barrels 2.
The hydrolysis area 21, the anoxic area 22, the facultative area 23, the aerobic area 24 and the sedimentation area 25 are communicated through the water passing structure 3, an air stripping device 41 is arranged between the sedimentation area 25 and the hydrolysis area 21, a mud bucket 5 is arranged at the bottom of the sedimentation area 25, the air stripping device 41 is used for lifting muddy water primarily concentrated by the mud bucket 5 to the hydrolysis area 21 to realize sludge circulation, and the water content of the air-stripped sludge is smaller than that of the inlet sludge of the sedimentation area 25.
The first inner barrel 2 is connected with the second inner barrel 2 through a cap, the rear part of the second inner barrel 2 is connected with a tee joint and extends into the lower part of the second inner barrel 2 through a pipeline, water flows into the lower part of the second inner barrel 2 from the upper part of the first inner barrel 2 through the pipeline, air blockage and short flow are avoided, a certain distance is reserved between a water passing pipeline and the bottom of the second inner barrel 2, and sludge siltation and unsmooth water passing are prevented.
The inner barrel 2 and the outer barrel 1 (a water inlet and a water outlet) are connected through the cap, the inner barrel 2 and the inner barrel 2 are connected (water passing holes are formed among units), the tee joint is connected behind the cap, the upper connector is communicated with air, and unsmooth water passing caused by air blockage can be avoided; the lower connector is connected with the pipeline to realize diversion and water passing and prevent short flow, the pipeline extends into the middle lower part of the equipment, and the length is slightly different due to different functional partitions.
The water passing structure 3 consists of a cap, a tee joint and a pipeline, the water passing structure 3 effectively avoids short flow, the space of equipment is fully utilized, the actual retention time is consistent with the theory, and the cap inlet, the upper outlet of the tee joint and the lower outlet of the pipeline are provided with intercepting and anti-blocking devices to prevent the filler from blocking the pipeline and prevent unsmooth water passing.
The mud bucket 5 is a collection structure with a certain angle, the area of the bottom of the mud bucket is only slightly larger than that of the air stripping pipe, the mud bucket 5 and the inner barrel 2 are integrally molded, and the mud outlet of the air stripping device 41 is in lap joint with the water inlet tee joint, so that backflow liquid and water are fully mixed.
The hydrolysis area 21 and the anoxic area 22 are provided with a mixing device, and MBBR fillers with corresponding filling ratios are added into the facultative area 23 and the aerobic area 24.
The device is provided with five sets of aeration devices 42, and the air distribution structure is formed by the air stripping device 41 and the aeration devices 42.
The aeration device 42 comprises a T-shaped aeration pipe and a stop valve capable of adjusting air flow, and in order to reduce filler fluidization and improve oxygen utilization rate and sludge stirring strength, according to the equipment structure, T-shaped perforation aeration is adopted, the aeration amount of the hydrolysis area 21 and the aeration amount of the anoxic area 22 are small, mixing and stirring are carried out, the facultative area 23 and the aerobic area 24 are approximately the same, under the action of pollutants, concentration difference is formed, the settling area 25 carries out air stripping and backflow of muddy water to the hydrolysis area 21, and the backflow ratio is more than 200%.
The aeration pipelines of the aeration devices 42 at the bottoms of the hydrolysis zone 21, the anoxic zone 22, the facultative zone 23 and the aerobic zone 24 are arranged in a T shape, so that an aeration dead zone can be effectively reduced, sludge siltation is avoided, the oxygen utilization rate and the filler fluidization effect are improved, wherein the aeration amounts of the hydrolysis zone 21 and the anoxic zone 22 are small, the stirring effect is mainly realized, sludge deposition is prevented, and the aeration amounts of the facultative zone and the aerobic zone are relatively large; the air inlet of the settling zone is used for air stripping and refluxing of muddy water.
And the top parts of the facultative area 23 and the aerobic area 24 are provided with an interception net 6, so that the phenomenon that the liquid level in the equipment is too high to cause filler loss is prevented.
The hydrolysis area 21 of the utility model mainly carries out hydrolysis acidification of raw water and sludge to improve the biodegradability of sewage, and simultaneously carries out sludge reduction, the anoxic area 22 mainly carries out denitrification, because of gas mixing, trace dissolved oxygen existing in the reaction area is absorbed and utilized by the sludge, so partial nitrification can be carried out, but because the dissolved oxygen is lower (the hydrolysis area is not more than 0.2mg/L, the anoxic area is not more than 0.5mg/L), the nitrification is incomplete, the produced nitrite nitrogen is reduced into nitrogen, the dissolved oxygen in the facultative area 23 is about 1mg/L and the dissolved oxygen in the aerobic area 24 is less than 3mg/L, the adding of the filler leads the biomass in the two areas to be large, the types of microorganisms are rich, the dissolved oxygen is lower, the dissolved oxygen on the surface of the filler biomembrane is higher to carry out nitrification carbon removal and nitrification, the dissolved oxygen in the interior is lower, the denitrification is carried out, therefore, synchronous nitrification and denitrification and partial short-cut nitrification and denitrification are performed in the four biological reaction areas of the device.
The utility model is assembled by a hollow outer barrel 1 and a plurality of fan-shaped inner barrels 2, the fan-shaped inner barrels 2 are tightly connected and placed in the outer barrel 1 to form sewage reaction chambers with different functions, the arc-shaped outer wall of the inner barrel 2 is tightly attached to the inner wall of the outer barrel 1, a sludge membrane coupling sewage treatment process is adopted for sewage treatment, a hydrolysis area 21, an anoxic area 22, a facultative area 23, an aerobic area 24 and a precipitation area 25 are sequentially arranged along the water inlet direction, all the units are communicated by a water passing structure 3, the precipitation area 25 and the hydrolysis area 21 are refluxed by a gas stripping device 41, the bottom of the precipitation area 25 is provided with a sludge bucket 5, the gas stripping device 41 lifts muddy water preliminarily concentrated by the sludge bucket 5 to the hydrolysis area 21 to realize sludge circulation, the moisture content of the gas-stripped sludge is less than the moisture content of the sludge entering the precipitation area, the structure is simple, the rapid forming and the installation are convenient, and the quality of the effluent of the sludge membrane coupling process is good; low dissolved oxygen and low energy consumption, can realize synchronous nitrification and denitrification and partial shortcut nitrification and denitrification, and can treat NH3The removal rate of-N, CODcr and TN is high, and the problems of sludge deposition, difficult updating of filler biomembrane, short flow and the like can be effectively solved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (6)
1. The utility model provides a sewage treatment plant is used at family of little oxygen efficient, includes outer bucket (1) and interior bucket (2), its characterized in that: the inner barrel (2) is tightly arranged in the outer barrel (1), the inner barrel (2) is composed of sewage reaction chambers with different functions, and a water passing structure (3) and an air distribution structure (4) are arranged between the inner barrels (2).
2. The domestic sewage treatment device with micro-aerobic and high efficiency according to claim 1, wherein: outer bucket (1) be the cavity outer bucket, interior bucket (2) are the fan-shaped bucket of unified specification, interior bucket (2) arc outer wall closely laminates with outer bucket (1) inner wall, sewage treatment adopts mud membrane coupling sewage treatment process, interior bucket (2) are equipped with five groups, are hydrolysis area (21), anoxic zone (22), facultative zone (23), aerobic zone (24) and settling zone (25) along the direction of intaking in proper order, the one end in hydrolysis area (21) is provided with water inlet (26), the one end in settling zone (25) is provided with delivery port (27).
3. The domestic sewage treatment device with micro-aerobic effect according to claim 2, wherein: hydrolysis district (21), anoxic zone (22), oxygen district (23) of holding concurrently, good oxygen district (24) and precipitation district (25) between each unit through water structure (3) UNICOM, be provided with air stripping device (41) between precipitation district (25) and hydrolysis district (21), the bottom of precipitation district (25) is provided with bagger (5), air stripping device (41) carry the muddy water through preliminary concentration of bagger (5) to hydrolysis district (21) and realize the mud circulation, air stripping mud moisture content is less than precipitation district (25) mud moisture content of intaking.
4. The domestic sewage treatment device with micro-aerobic effect according to claim 2, wherein: the hydrolysis zone (21) and the anoxic zone (22) are provided with a mixing device, and MBBR fillers with corresponding filling ratios are added into the facultative zone (23) and the aerobic zone (24).
5. The domestic sewage treatment device with micro-aerobic effect according to claim 2, wherein: the device is provided with five sets of aeration devices (42), each aeration device (42) comprises a T-shaped aeration pipe and a stop valve capable of adjusting air flow, the aeration amount of the hydrolysis area (21) and the aeration amount of the anoxic area (22) are small, the mixing and stirring are carried out, the facultative area (23) and the aerobic area (24) are approximately the same, under the action of pollutants, a concentration difference is formed, the sedimentation area (25) carries out air stripping and backflow on muddy water to the hydrolysis area (21), and the backflow ratio is more than 200%.
6. The domestic sewage treatment device with micro-aerobic effect according to claim 2, wherein: the top of the facultative zone (23) and the top of the aerobic zone (24) are provided with an interception net (6) to prevent the filler from losing due to overhigh liquid level inside the equipment.
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| CN202121610030.6U CN216155584U (en) | 2021-07-15 | 2021-07-15 | Micro-aerobic efficient household sewage treatment device |
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| CN202121610030.6U CN216155584U (en) | 2021-07-15 | 2021-07-15 | Micro-aerobic efficient household sewage treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371836A (en) * | 2021-07-15 | 2021-09-10 | 安徽华骐环保科技股份有限公司 | Micro-aerobic efficient household sewage treatment device |
| CN114804518A (en) * | 2022-04-18 | 2022-07-29 | 安徽华骐环保科技股份有限公司 | One-stop rural decentralized sewage treatment equipment and treatment method thereof |
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2021
- 2021-07-15 CN CN202121610030.6U patent/CN216155584U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371836A (en) * | 2021-07-15 | 2021-09-10 | 安徽华骐环保科技股份有限公司 | Micro-aerobic efficient household sewage treatment device |
| CN114804518A (en) * | 2022-04-18 | 2022-07-29 | 安徽华骐环保科技股份有限公司 | One-stop rural decentralized sewage treatment equipment and treatment method thereof |
| CN114804518B (en) * | 2022-04-18 | 2024-02-23 | 安徽华骐环保科技股份有限公司 | One-stop rural decentralized sewage treatment equipment and treatment method thereof |
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