Low-temperature-resistant and strain-decomposing-resistant distributed domestic sewage treatment device
By designing a dispersed domestic sewage treatment device that is resistant to low temperature and resistant to decomposition bacterial species, combining tanks, contact oxidation tanks and high-efficiency microbial enrichment fillers, the problem of poor treatment effect in the existing technology under low temperature conditions is solved, and stability is achieved Efficient sewage treatment and energy-saving and labor-saving effects.
Patent Information
- Application Number
- CN202420984613.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Existing domestic sewage treatment devices are difficult to ensure the treatment effect under low temperature conditions, and microbial bacterial species are easily frozen to death, resulting in poor drainage quality and increasing operation and maintenance costs.
A dispersed domestic sewage treatment device that is resistant to low temperature and resistant to decomposition bacteria is designed, using a combined structure of tank body, A contact oxidation tank, O contact oxidation tank and clarification tank, combining high-efficiency microbial enrichment filler and self-flow biological contact The oxidation process ensures good microbial activity under low temperature conditions.
It has achieved good sewage treatment effect under low temperature conditions, stable effluent water quality, small sludge production, energy-saving and labor-saving, and reduced maintenance costs by more than 50%, adapting to the low temperature environment in Northeast China in winter.
Smart Images
Figure CN222454708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of domestic sewage treatment, in particular to a decentralized domestic sewage treatment device which is resistant to low temperatures and decomposition bacteria. Background Art
[0002] Domestic sewage treatment plant is a kind of equipment specially used to treat domestic sewage. This plant removes harmful substances from domestic sewage through various methods such as physical, chemical and biological methods, so that it meets or exceeds local discharge standards, thereby protecting the environment and human health. These plants are widely used in cities, villages, industrial areas and residential areas, helping to improve water quality and meet environmental protection requirements.
[0003] However, in the existing technology for domestic sewage treatment, the national GB18918-2002 Level A emission standard stipulates that when the water temperature is greater than 12°C, the emission standard of ammonia nitrogen is 5mg / L, and when the water temperature is less than 12°C, the emission standard of ammonia nitrogen is 8mg / L. The water temperature in Northeast China is 0-5°C in winter, and the average water temperature is 3-4°C. When the water temperature is less than 5°C, the microbial species will die, and the drainage quality is difficult to guarantee. It also wastes operation and maintenance costs, places particularly high technical requirements on workers' operation and maintenance, and has high labor intensity.
[0004] Therefore, in view of this, research and improvement are conducted on the existing structure and deficiencies, and a decentralized domestic sewage treatment device that is resistant to low temperatures and anti-decomposition bacteria is provided. Utility Model Content
[0005] The purpose of the utility model is to provide a decentralized domestic sewage treatment device that is resistant to low temperatures and decomposition bacteria, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a decentralized domestic sewage treatment device that is resistant to low temperatures and decomposition bacteria, comprising a tank body and an A contact oxidation tank, wherein a water inlet is arranged on the left side of the tank body, and a separation zone is arranged on the left end of the inner part of the tank body, an inspection port is arranged on the top of the tank body, and a partition plate 1 is installed inside the tank body, the A contact oxidation tank is arranged on the right side of the partition plate 1, and a high-efficiency microbial enrichment filler is installed inside the A contact oxidation tank, a partition plate 2 is arranged on the right side of the A contact oxidation tank, and an O contact oxidation tank is arranged on the right side of the partition plate 2, and a clarification tank is separated on the right side of the O contact oxidation tank by a partition plate 3.
[0007] Furthermore, a conveying pipe is installed on the surface of the partition plate 2, and the partition plate 2, the partition plate 1 and the partition plate 3 are distributed in parallel.
[0008] Furthermore, a reflux pipe is provided on the left side of the inner side of the clarification tank, and a reflux valve is installed outside the reflux pipe.
[0009] Furthermore, an external aeration pipe is provided inside the O contact oxidation pond, and an aeration plate is installed at the lower end of the external aeration pipe through a supporting frame.
[0010] Furthermore, a branch pipe is connected to the side of the aeration external pipe, and an aeration pipe is connected to the end of the branch pipe.
[0011] Furthermore, a forced discharge pump is arranged in the middle of the clarification tank through a fall chain, and a forced discharge hose is connected to the side of the forced discharge pump.
[0012] Furthermore, an aeration fan is connected to the end of the aeration external pipe, and a control box is provided at the lower end of the aeration fan.
[0013] The utility model provides a decentralized domestic sewage treatment device with low temperature resistance and anti-decomposition bacteria, which has the following beneficial effects:
[0014] 1. The utility model can separate feces and liquid after sewage enters the tank from the water inlet through the separation zone. The A contact oxidation tank can remove total nitrogen, ammonia nitrogen and organic matter in the water. The O contact oxidation tank can remove total nitrogen, ammonia nitrogen and organic matter in the water. The clarification tank separates the treated liquid into solid and liquid. The tank can be buried below the frozen layer (it can also be placed on the ground according to the special requirements of the user). The surface above the underground integrated equipment can be used as greening or other land. There is no need to build additional houses, heating or insulation. Under the condition of a water temperature of several degrees in winter, the bacteria are active and will not be frozen to death, and can work well.
[0015] , The utility model adopts gravity-flowing biological contact oxidation process through the biological treatment process inside the tank body, and its treatment effect is completely superior to the traditional mixed or two-stage series completely mixed biological contact oxidation tank or MBR process, and is smaller in size than the activated sludge tank, has strong adaptability to water quality, good impact load resistance, stable effluent water quality, and can withstand low temperatures in the northeast winter. The sludge production is extremely small, and sludge swelling will not occur. Energy, labor and maintenance costs can be saved by more than 50%. The high-efficiency microbial enrichment filler has a large specific surface area, and microorganisms are easy to form and remove biofilms. Under the same organic load conditions, the organic removal rate is high, the solubility of oxygen in the air in water can be increased, and it has a very strong deodorization function.
[0016] 3. The biochemical pool adopts biological contact oxidation method. The volume load of its filler is relatively low. The microorganisms are in the self-oxidation stage and the sludge production is small. The sludge needs to be discharged only once every six months (180 days) (sucked out by a manure truck or dehydrated into mud cakes for transportation). If the mud, sand, leftovers, cleaning utensils and toilet paper entering the device are controlled, the sludge can be discharged only once a year (365 days). BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1This is a schematic diagram of the overall internal structure of a decentralized domestic sewage treatment device with low temperature resistance and anti-decomposition bacteria of the utility model;
[0018] Figure 2 This is a schematic diagram of the overall external structure of a decentralized domestic sewage treatment device with low temperature resistance and anti-decomposition bacteria of the utility model;
[0019] Figure 3 The utility model is a schematic diagram of the aeration external pipe-aeration pipe structure of a decentralized domestic sewage treatment device that is resistant to low temperatures and anti-decomposition bacteria.
[0020] In the figure: 1. tank body; 2. water inlet; 3. separation zone; 4. inspection port; 5. partition plate one; 6. A contact oxidation tank; 7. high-efficiency microbial enrichment filler; 8. partition plate two; 9. delivery pipe; 10. O contact oxidation tank; 11. partition plate three; 12. clarification tank; 13. reflux pipe; 14. reflux valve; 15. aeration external pipe; 16. support frame; 17. aeration plate; 18. branch pipe; 19. aeration pipe; 20. forced exhaust pump; 21. forced exhaust hose; 22. control box; 23. aeration fan. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0022] like Figure 1 and Figure 2As shown, a decentralized domestic sewage treatment device with low-temperature resistant and anti-decomposition bacteria comprises a tank body 1 and a contact oxidation tank 6. A water inlet 2 is arranged on the left side of the tank body 1. The tank body 1 can be buried below the frozen layer (it can also be placed on the ground according to the special requirements of the user). The surface above the underground integrated equipment can be used as greening or other land, and there is no need to build additional houses and provide heating and insulation. Under the condition of a water temperature of several degrees in winter, the bacteria have good activity and will not be frozen to death, and can work well. A separation zone 3 is arranged at the left end inside the tank body 1. After the sewage enters the tank body 1 from the water inlet 2, the separation zone 3 can separate feces and liquid. An inspection port 4 is arranged on the top of the tank body 1, and the tank body 1 is provided with a partition plate 5 inside, and the A contact oxidation tank 6 is arranged on the right side of the partition plate 5. The A contact oxidation tank 6 can remove total nitrogen, ammonia nitrogen and organic matter in the water, and the O contact oxidation tank 10 can remove total nitrogen, ammonia nitrogen and organic matter in the water. The biological treatment process adopts a gravity-flow biological contact oxidation process, and its treatment effect is completely superior to the traditional mixed or two-stage series completely mixed biological contact oxidation tank or MBR process, and is smaller in size than the activated sludge tank, has strong adaptability to water quality, good impact load resistance, stable effluent water quality, resistance to low temperature in winter in Northeast China, very little sludge production, no sludge expansion, energy saving, labor saving and maintenance cost saving of more than 50%, and the A contact oxidation tank 6 A high-efficiency microbial enrichment filler 7 is installed inside. The high-efficiency microbial enrichment filler 7 has a large specific surface area and is easy for microorganisms to form and remove films. Under the same organic matter load conditions, it has a high organic matter removal rate, can increase the solubility of oxygen in the air in water, and has a very strong deodorization function. A partition plate 2 8 is arranged on the right side of the A contact oxidation tank 6, and an O contact oxidation tank 10 is arranged on the right side of the partition plate 2 8. A clarification tank 12 is separated from the O contact oxidation tank 10 by a partition plate 3 11. The clarification tank 12 performs solid-liquid separation on the treated liquid. A conveying pipe 9 is installed on the surface of the partition plate 2 8, and the partition plate 2 8, the partition plate 1 5 and the partition plate 3 11 are distributed in parallel. A reflux pipe 13 is provided on the left side of the inner side of the pool 12, and a reflux valve 14 is installed on the outside of the reflux pipe 13. A forced discharge pump 20 is provided in the middle part of the clarification tank 12 through a fall chain. The forced discharge pump 20 is used for external discharge treatment, and a forced discharge hose 21 is connected to the side of the forced discharge pump 20. An aeration fan 23 is connected to the end of the aeration external pipe 15, and a control box 22 is provided at the lower end of the aeration fan 23. The control box 22 is equipped with the entire equipment processing system. The entire equipment processing system is equipped with a fully automatic electrical control system, which is safe and reliable in operation. Usually, it does not require special management. According to the equipment manual, it only needs to be maintained and serviced for the aeration fan 23 and the forced discharge pump 20 in a timely manner.
[0023] like Figure 3As shown, an aeration external pipe 15 is provided inside the O contact oxidation pond 10. The biochemical pond adopts biological contact oxidation method, and the volume load of its filler is relatively low. The microorganisms are in the self-oxidation stage, and the amount of mud produced is small. The mud only needs to be discharged once every six months (180 days) or more (sucked out by a manure truck or dehydrated into mud cakes for transportation). If mud, sand, leftovers, cleaning utensils and toilet paper entering the device are controlled, the mud can be discharged once every year (365 days or more), and the lower end of the aeration external pipe 15 is installed with an aeration plate 17 through a support frame 16, and the side of the aeration external pipe 15 is connected to a branch pipe 18, and the end of the branch pipe 18 is connected to an aeration pipe 19.
[0024] In summary, the decentralized domestic sewage treatment device with low temperature resistance and anti-decomposition bacteria is firstly based on Figure 1-Figure 3 The structure shown in the figure can be buried below the frozen layer according to customer needs, and can also be placed on the ground according to special user requirements. The surface above the underground integrated equipment can be used as greening or other land, and there is no need to build additional houses and provide heating and insulation. Under the condition of a few degrees water temperature in winter, the bacteria have good activity and will not be frozen to death, and can work well. After the sewage enters from the water inlet 2, it reaches the separation area 3. The simple water inlet grate pool in the separation area 3 separates impurities in the water. After the separation area 3 separates the feces and liquid, the liquid is separated from the partition plate 5. The part is slotted into the A contact oxidation tank 6, and the high-efficiency microorganism enrichment filler 7 treats the liquid in the A contact oxidation tank 6. The high-efficiency microorganism enrichment filler 7 has a large specific surface area, and the microorganisms are easy to form and remove the film. Under the same organic matter load conditions, the organic matter removal rate is high, and the solubility of oxygen in the air in water can be increased. It has a very strong deodorization function. The aeration fan 23 transports gas to the aeration external pipe 15, so that the aeration plate 17 and the aeration pipe 19 treat the liquid in the O contact oxidation tank 10 and the A contact oxidation tank 6 respectively. The A contact oxidation tank 6 can remove total nitrogen, ammonia nitrogen and organic matter in the water, and the O contact oxidation tank 10 can remove total nitrogen, ammonia nitrogen and organic matter in the water. The treated liquid enters the clarification tank 12 for clarification, and the treated liquid is separated into solid and liquid in the clarification tank 12. The biological treatment process inside the tank 1 adopts the gravity biological contact oxidation process, and its treatment effect is completely better than the traditional mixed or two-stage series completely mixed biological contact oxidation tank or MBR process, and it is smaller than the activated sludge tank, has strong adaptability to water quality, and has good shock load resistance. The effluent water quality is stable and can withstand the low temperature in the northeast winter. The amount of sludge produced is extremely small, and sludge expansion will not occur. Energy, labor and maintenance costs can be saved by more than 50%. The aeration plate 17 and the aeration pipe 19 adopt the biological contact oxidation method. The volume load of the filler is relatively low. The microorganisms are in the self-oxidation stage and the amount of sludge produced is small. It only takes six months (180 days) or more to discharge the sludge (suctioned by a manure truck or dehydrated into mud cakes for transportation). If the mud, sand, leftovers, cleaning utensils and toilet paper entering the device are controlled, the sludge can be discharged only once a year (365 days).
[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A decentralized domestic sewage treatment device with low temperature resistance and anti-decomposition bacteria, comprising a tank (1) and a contact oxidation tank (6), characterized in that: The tank body (1) is provided with a water inlet (2) on the left side, and a separation zone (3) is provided at the left end inside the tank body (1), an inspection port (4) is provided on the top of the tank body (1), and a partition plate 1 (5) is installed inside the tank body (1), the A contact oxidation tank (6) is provided on the right side of the partition plate 1 (5), and a high-efficiency microbial enrichment filler (7) is installed inside the A contact oxidation tank (6), a partition plate 2 (8) is provided on the right side of the A contact oxidation tank (6), and an O contact oxidation tank (10) is provided on the right side of the partition plate 2 (8), and a clarification tank (12) is separated from the right side of the O contact oxidation tank (10) by a partition plate 3 (11).
2. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 1, characterized in that: A conveying pipe (9) is installed on the surface of the second partition plate (8), and the second partition plate (8), the first partition plate (5) and the third partition plate (11) are arranged in parallel.
3. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 1, characterized in that: A reflux pipe (13) is provided on the left side of the inner side of the clarification tank (12), and a reflux valve (14) is installed outside the reflux pipe (13).
4. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 1, characterized in that: An aeration external pipe (15) is provided inside the O contact oxidation pond (10), and an aeration plate (17) is installed at the lower end of the aeration external pipe (15) via a support frame (16).
5. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 4, characterized in that: The side of the aeration external pipe (15) is connected to a branch pipe (18), and the end of the branch pipe (18) is connected to an aeration pipe (19).
6. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 1, characterized in that: A forced discharge pump (20) is arranged in the middle of the clarification tank (12) through a fall chain, and a forced discharge hose (21) is connected to the side of the forced discharge pump (20).
7. A decentralized domestic sewage treatment device with low-temperature-resistant and anti-decomposition bacteria according to claim 4, characterized in that: The end of the aeration external pipe (15) is connected to an aeration fan (23), and a control box (22) is provided at the lower end of the aeration fan (23).