CN211255632U - Sewage treatment integration system suitable for rural area - Google Patents
Sewage treatment integration system suitable for rural area Download PDFInfo
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- CN211255632U CN211255632U CN201922126781.XU CN201922126781U CN211255632U CN 211255632 U CN211255632 U CN 211255632U CN 201922126781 U CN201922126781 U CN 201922126781U CN 211255632 U CN211255632 U CN 211255632U
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- 239000010865 sewage Substances 0.000 title claims abstract description 57
- 230000010354 integration Effects 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000010802 sludge Substances 0.000 claims abstract description 66
- 238000004062 sedimentation Methods 0.000 claims abstract description 37
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 26
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
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- 238000010276 construction Methods 0.000 description 2
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- 239000012535 impurity Substances 0.000 description 2
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- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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- 230000002349 favourable effect Effects 0.000 description 1
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- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
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Abstract
The utility model discloses a sewage treatment integrated system suitable for rural areas, which comprises an adjusting tank, a primary sedimentation tank and an aerobic tank; the adjusting tank is connected with the primary sedimentation tank through a drain pipe; the primary sedimentation tank is connected with the aerobic tank through a water outlet; a sludge tank is arranged below the aerobic tank; the aerobic tank is connected with the clean water tank; a grid is arranged above the adjusting tank; the bottom of the adjusting tank is provided with a blast aeration device; the drain pipe of the adjusting tank is connected with the lifting pump at the bottom of the tank; a guide cylinder is vertically arranged in the middle of the primary sedimentation tank; a water outlet is arranged at the upper part of the right side surface of the primary sedimentation tank; a sludge dewatering tank is arranged at the bottom of the primary sedimentation tank; an intermittent aeration device is arranged at the bottom of the aerobic tank; a plurality of fillers are uniformly arranged in the aerobic tank; the aerobic tank is connected with the clean water tank through a decanter. The utility model discloses not only can carry out centralized processing to rural sewage, a village uses in collective moreover, has reduced sewage collection's difficulty, has extensive suitability.
Description
Technical Field
The utility model relates to an integration system especially relates to a sewage treatment integration system suitable for it is rural, belongs to the sewage treatment field.
Background
Under the background of continuous and deep urbanization construction, the treatment of rural domestic sewage becomes an important content of new rural construction. The rural domestic sewage is discharged at will, and the dry toilet which is visible everywhere is added, so that serious threats are caused to ecological environments of rivers, lakes and underground water. The development of rural domestic sewage treatment work can not only obviously improve the rural living environment, but also effectively control the water quality of surface water and underground water in rural areas, and the treated intermediate water can be used for agricultural irrigation, so that the rural water shortage condition is relieved. At present, a targeted sewage treatment process is urgently needed to be provided according to the actual situation of rural domestic sewage pollution so as to improve and enhance the rural water ecological environment, and therefore the following two principles need to be considered:
economic and practical principle: due to the limitation of rural economic conditions, when the domestic sewage treatment process is selected, not only the current rural economic situation needs to be evaluated, but also the future economic situation needs to be predicted, and factors such as actual sewage production amount and population number are fully combined, so that a high-tech treatment process cannot be blindly pursued, and a process which is easy to maintain and has a relatively mature technology needs to be selected, so that the process is more favorable for application in rural areas.
The principle of simple operation is as follows: because of the lack of infrastructure and limited economic strength in rural areas, the shortage of related practitioners and the general inexistence of professional skills, a treatment process with strong operability, safe and stable operation needs to be selected, and various local existing resources need to be fully utilized, so that the normal operation of the domestic sewage treatment facility is effectively guaranteed.
Therefore, the method aims at solving the problems that rural sewage treatment is incomplete, areas for sewage treatment are few, farmers drain water randomly and centralized treatment is not performed; meanwhile, villages are not centralized and are dispersed, the difficulty of collecting sewage is increased, and the problem of sewage treatment by a sewage station does not exist, so that a sewage treatment system suitable for rural areas needs to be developed urgently, and the problem of existing water source pollution is solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a sewage treatment integrated system suitable for rural areas.
In order to solve the technical problem, the utility model discloses a technical scheme is: a sewage treatment integrated system suitable for rural areas comprises an adjusting tank, a primary sedimentation tank and an aerobic tank; the adjusting tank is connected with the primary sedimentation tank through a drain pipe; the primary sedimentation tank is connected with the aerobic tank through a water outlet; a sludge tank is arranged below the aerobic tank; the aerobic tank is connected with the clean water tank;
a grid is arranged above the adjusting tank; the bottom of the adjusting tank is provided with a blast aeration device; the drain pipe of the adjusting tank is connected with the lifting pump at the bottom of the tank;
a guide cylinder is vertically arranged in the middle of the primary sedimentation tank; a water outlet is arranged at the upper part of the right side surface of the primary sedimentation tank; a sludge dewatering tank is arranged at the bottom of the primary sedimentation tank;
an intermittent aeration device is arranged at the bottom of the aerobic tank; a plurality of fillers are uniformly arranged in the aerobic tank; the aerobic tank is connected with the sludge tank through a first water pump; the aerobic tank is connected with the primary sedimentation tank through a second water pump; a decanter is arranged in the aerobic tank; the aerobic tank is connected with the clean water tank through a decanter.
Furthermore, the upper end of the guide shell is connected with the drain pipe, and the lower end of the guide shell extends into the upper part of the sludge dewatering tank.
Further, the sludge dewatering tank is funnel-shaped; the bottom of the sludge dewatering tank is connected with a sludge discharge pipe; the sludge discharge pipe is connected with the sludge tank.
Furthermore, the fillers are all honeycomb-coal-shaped MBBR fillers, and the diameters of the fillers are 23-27 mm.
Furthermore, the water outlet is provided with a water outlet weir; a perforated plate is arranged at the water outlet weir in a matching way.
Further, the blast aeration device comprises a blast blower and a perforated pipe; the perforated pipes are distributed in a shape like a Chinese character feng, and the main pipes of the perforated pipes are connected with an air blower; the blower is a three-blade Roots blower.
Further, the clean water tank is connected with a sewage reuse pipeline.
The utility model discloses not only can carry out centralized processing to rural sewage, a village uses in a collective way moreover, has reduced sewage collection's difficulty to effectively alleviate current rural water source pollution problem, have extensive suitability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the packing.
FIG. 3 is a flow chart of the operation of the aerobic tank.
In the figure: 1. a regulating tank; 2. a primary sedimentation tank; 3. an aerobic tank; 4. a sludge tank; 5. a clean water tank; 6. a grid; 7. a lift pump; 8. a water outlet; 9. a draft tube; 10. a drain pipe; 11. a sludge dewatering tank; 12. a filler; 13. a second water pump; 14. an aeration device; 15. and (4) a return pipeline.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figures 1-3, the integrated sewage treatment system suitable for rural areas comprises a regulating tank 1, a primary sedimentation tank 2 and an aerobic tank 3; the adjusting tank 1 is connected with the primary sedimentation tank 2 through a drain pipe 10; the primary sedimentation tank 2 is connected with the aerobic tank 3 through a water outlet 8; a sludge tank 4 is arranged below the aerobic tank 3; the aerobic tank 3 is connected with the clean water tank 5;
a grid 6 is arranged above the adjusting tank 1; the sewage is treated by a grating 6 to remove large impurities and enters an adjusting tank 1 at first, and a blast aeration device is arranged at the bottom of the adjusting tank 1; the drain pipe 10 of the adjusting tank 1 is connected with the lift pump 7 at the bottom of the tank; the lift pump 7 is connected to a drain pipe 10. The adjusting tank 1 is used for stirring the sewage through a blast aeration device, homogenizing the sewage and preventing sludge from settling; then the sewage is pumped into a drain pipe 10 by a lift pump 7 and enters the primary sedimentation tank 2.
The blast aeration device is an important device of an activated sludge system and is used for introducing air into an aeration tank (an aerobic tank in the application). The blower conveys air to an aeration device arranged at the bottom of the aeration tank through a series of pipelines, and oxygen in the air is transferred into the mixed liquid through diffusion of the perforated pipes. The blast aeration device comprises a blower and a perforated pipe; the perforated pipes are distributed in a shape like a Chinese character feng, and the main pipes of the perforated pipes are connected with an air blower; the blower is a three-blade Roots blower. The three-blade Roots blower and the three-blade impeller have high mechanical strength, low noise, small vibration and high efficiency. The blast aeration device mainly stirs sewage to prevent sludge accumulation.
The middle part of the primary sedimentation tank 2 is vertically provided with a guide cylinder 9; the upper end of the guide shell 9 is connected with a drain pipe 10, and the lower end extends into the upper part of a sludge dewatering tank 11. The primary sedimentation tank 2 adopts a mode of medium-in and medium-out, the guide cylinder 9 is arranged in the middle of the primary sedimentation tank 2 and is introduced into the upper part of the sludge dewatering tank 11, so that the sewage is ensured to have enough sedimentation time when entering the primary sedimentation tank 2, not only the water flow is mild, but also the flow speed is slow, the sludge sedimentation is facilitated, and meanwhile, the water distribution is uniform to prevent short flow.
A water outlet 8 is arranged at the upper part of the right side surface of the primary sedimentation tank 2; the water outlet 8 is provided with a water outlet weir; the water outlet 8 is provided with a water outlet weir to ensure uniform water outlet; a perforated plate is arranged at the water outlet weir in a matching way. In order to prevent the filler 12 from flowing out of the water outlet 8, a customized perforated plate is arranged at the water outlet weir. The perforated plate ensures that the packing 12 does not leak out. A sludge dewatering tank 11 is arranged at the bottom of the primary sedimentation tank 2; the sludge dewatering tank 11 is funnel-shaped; the bottom of the sludge dewatering tank 11 is connected with a sludge discharge pipe; the sludge discharge pipe is connected with the sludge tank 4. The sludge dewatering tank 11 is convenient for sludge to settle at the bottom of the tank, and is discharged into the sludge tank 4 through a sludge discharge pipe, and finally the sludge is treated together.
The bottom of the aerobic tank 3 is provided with an intermittent aeration device 14; the aeration device 14 blows air through an air blower, and a plurality of fillers 12 are uniformly arranged in the aerobic tank 3; and the filling material 12 is added to improve the load capacity of the system. The aerobic tank 3 is connected with the sludge tank 4 through a first water pump; the aerobic tank 3 is connected with the primary sedimentation tank 2 through a second water pump 13; a decanter is arranged in the aerobic tank 3; the aerobic tank 3 is connected with a clean water tank 5 through a decanter.
A reflux device is arranged in the aerobic tank 3, and after the aerobic tank operates for a period of time, the second water pump 13 is turned on, so that the sewage in the aerobic tank 3 flows back to the primary sedimentation tank 2, and the purpose is to increase the amount of microorganisms in the aerobic tank 3, thereby ensuring the state of activated sludge. After the operation for a period of time, the sludge in the aerobic tank 3 is discharged into the sludge tank 4 through the first water pump, and the sludge entering the sludge tank 4 is transported to a designated place at regular intervals.
The decanter is a device for periodically removing clarified water, and has the function of decanting the clarified water from a static pool surface without stirring sediment and ensuring the quality of the discharged water. The decanter is arranged in the wall of the aerobic tank 3, the height of the decanter can be adjusted by a switch and can move up and down, the aerobic tank 3 combines an intermittent activated sludge process and a biological contact oxidation process, when water inlet is stopped, the decanter is adjusted to the height of the water surface, and supernatant is discharged into the clean water tank 5.
Aeration means artificially introducing air into the biochemical aeration tank through proper equipment to achieve the expected purpose. The aeration not only makes the liquid in the pool contact with the air for oxygenation, but also accelerates the transfer of oxygen in the air to the liquid due to the stirring of the liquid, thereby completing the purpose of oxygenation; in addition, the aeration also can prevent the suspension body in the tank from sinking and strengthen the contact between the organic matters in the tank and the microorganisms and the dissolved oxygen, thereby ensuring the oxidative decomposition of the microorganisms in the tank on the organic matters in the sewage under the condition of sufficient dissolved oxygen.
The aerobic tank 3 adopts an intermittent activated sludge method, an activated sludge sewage treatment technology which operates according to an intermittent aeration mode. It is mainly characterized by that it is orderly and intermittently operated in operation, and can discharge sludge at intervals, promote metabolism of microbe and ensure oxygen quantity in the sewage.
The aerobic tank 3 is internally combined with an intermittent activated sludge method and a biological contact oxidation method, and simultaneously, a fluidized bed biofilm method is applied to the aerobic tank, so that the requirement of rural domestic sewage treatment can be well met, and the process and integration are combined to meet the rural conditions at the present stage.
The aerobic tank 3 adopts a fluidized bed biofilm method, firstly, the filler 12 is selected, and the aerobic tank is harmless to microorganisms, has good adhesion performance, easy film formation, high specific surface area and porosity, washing resistance and blockage prevention, high degree of aging resistance, durable texture, low price and the like; secondly, an aeration mode is selected, air is blown by an air blower, air distribution is uniform, fine bubbles can ensure that the air is fully contacted with water, meanwhile, the bubbles play a role in stirring the water in the rising process, the filler in the water body can be ensured to be contacted with microorganisms and the air, the film can be quickly hung on the surface of the filler 12, and the load impact resistance of the aerobic tank 3 is improved.
The fillers 12 are all honeycomb-shaped MBBR fillers, and the diameters of the fillers 12 are 23-27 mm. As shown in fig. 2, the MBBR packing is a polyethylene biofilm packing with a density close to that of water, preferably 25mm in diameter. The MBBR filling material is adopted, not only combines the advantages of the traditional sludge method and the biofilm method, but also avoids the disadvantages of the traditional sludge method and the biofilm method, and has the characteristics of impact load resistance, long sludge age, less residual sludge, flexible and simple operation, low engineering investment, small engineering quantity, economy, applicability, high efficiency and the like. In order to ensure that the filler 12 does not accumulate, the filler 12 is added after the water is fed, the filler 12 is in a floating state or a suspension state in the water and is stirred under the action of the aeration device 14, so that the filler 12 is promoted to be fully contacted with the water, nutrient substances and microorganisms in the water can be fully contacted, and finally, the microorganisms are slowly enriched on the filler 12 to form a biological film. The filler 12 can ensure the amount of microorganisms in water and ensure that the microorganisms cannot be discharged along with sewage, thereby ensuring the amount of the microorganisms in the aerobic tank 3 and ensuring the sewage treatment effect by a biological contact oxidation method.
The clean water tank 5 is connected with a sewage reuse pipeline. The sewage recycling pipeline leads out the treated sewage for greenbelts, road surface watering, flower and grass watering and the like.
The operation flow of the aerobic tank 3 is shown in figure 3, the aerobic tank 3 is fed with water firstly, then is added with the filler 12, then is stirred by the aeration device 14, after a period of operation, sludge is precipitated at the bottom of the tank, supernatant is discharged into the clean water tank 5 by the decanter, and the sludge at the bottom of the tank is discharged into the sludge tank 4 by the water pump I.
The utility model discloses a working process does: the sewage is treated by a grating 6 to remove large impurities and enters an adjusting tank 1 at first, and an adjusting tank 11 is stirred by a blast aeration device to homogenize the sewage and prevent sludge from settling; then, the wastewater enters a primary sedimentation tank through a lifting pump 7, a mode of middle inlet and peripheral outlet 7 is adopted, and a water outlet weir is arranged at a water outlet 8 to ensure that the effluent is uniform; then the sewage enters an aerobic tank 3, an aeration device 14 at the bottom of the aerobic tank 3 blows air through an air blower, filler 12 is added into the aerobic tank 3, the load capacity of the system is improved, a decanter is arranged at the upper part of the aerobic tank 3 to discharge supernatant, a water pump is arranged at the bottom to discharge sludge in the aerobic tank 3 into a sludge tank 4, finally the supernatant enters a clean water tank 5 or a sewage recycling pipeline, and the sludge enters the sludge tank 4 and is transported to a designated place at regular intervals. The specific operation cycle is as follows: the specific flow is as shown in figure 1.
The utility model discloses a combine together the multiple technological advantage of intermittent type formula activated sludge method, biological contact oxidation method, fluidized bed biomembrane method, have shock-resistant load, the sludge age is long, surplus sludge is few, area is little, the operation is nimble simple, the engineering volume is little, characteristics such as economy is suitable for the high efficiency, combine aeration tank and sedimentation tank into an organic whole simultaneously and become good oxygen pond, through adding the anti load impact ability that packs the increase system wherein, reduced the operation degree of difficulty promptly, area is less again. In addition, the design structure is simple, the operation is convenient, and the sewage treatment system can be widely applied to sewage treatment integrated systems in rural areas.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a sewage treatment integration system suitable for rural area which characterized in that: comprises a regulating tank (1), a primary sedimentation tank (2) and an aerobic tank (3); the adjusting tank (1) is connected with the primary sedimentation tank (2) through a drain pipe (10); the primary sedimentation tank (2) is connected with the aerobic tank (3) through a water outlet (8); a sludge tank (4) is arranged below the aerobic tank (3); the aerobic tank (3) is connected with the clean water tank (5);
a grid (6) is arranged above the adjusting tank (1); the bottom of the adjusting tank (1) is provided with a blast aeration device; a drain pipe (10) of the adjusting tank (1) is connected with a lifting pump (7) at the bottom of the tank;
a guide shell (9) is vertically arranged in the middle of the primary sedimentation tank (2); a water outlet (8) is arranged at the upper part of the right side surface of the primary sedimentation tank (2); a sludge dewatering tank (11) is arranged at the bottom of the primary sedimentation tank (2);
an intermittent aeration device (14) is arranged at the bottom of the aerobic tank (3); a plurality of fillers (12) are uniformly arranged in the aerobic tank (3); the aerobic tank (3) is connected with the sludge tank (4) through a first water pump; the aerobic tank (3) is connected with the primary sedimentation tank (2) through a second water pump (13); a decanter is arranged in the aerobic tank (3); the aerobic tank (3) is connected with the clean water tank (5) through a decanter.
2. The integrated sewage treatment system applicable to rural areas according to claim 1, wherein: the upper end of the guide shell (9) is connected with a drain pipe (10), and the lower end of the guide shell extends into the upper part of a sludge dewatering tank (11).
3. The integrated sewage treatment system applicable to rural areas according to claim 2, wherein: the sludge dewatering tank (11) is funnel-shaped; the bottom of the sludge dewatering tank (11) is connected with a sludge discharge pipe; the sludge discharge pipe is connected with a sludge tank (4).
4. The rural sewage treatment integrated system according to claim 3, wherein: the fillers (12) are all honeycomb-coal-shaped MBBR fillers, and the diameters of the fillers (12) are 23-27 mm.
5. The rural sewage treatment integrated system according to claim 4, wherein: the water outlet (8) is provided with a water outlet weir; a perforated plate is arranged at the water outlet weir in a matching way.
6. The rural sewage treatment integrated system according to claim 5, wherein: the blast aeration device comprises a blower and a perforated pipe; the perforated pipes are distributed in a shape like a Chinese character feng, and main pipes of the perforated pipes are connected with an air blower; the blower is a three-blade roots blower.
7. The integrated sewage treatment system suitable for rural areas according to any one of claims 1 to 6, wherein: the clean water tank (5) is connected with a sewage reuse pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922126781.XU CN211255632U (en) | 2019-12-02 | 2019-12-02 | Sewage treatment integration system suitable for rural area |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922126781.XU CN211255632U (en) | 2019-12-02 | 2019-12-02 | Sewage treatment integration system suitable for rural area |
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| CN211255632U true CN211255632U (en) | 2020-08-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772891A (en) * | 2021-09-24 | 2021-12-10 | 中国科学院沈阳应用生态研究所 | In-situ purification treatment method for rural water closet wastewater in cold region in winter |
| WO2026000050A1 (en) * | 2024-06-26 | 2026-01-02 | Minitrat Industria Comercio E Servico Ltda | Compact sewage treatment plant and method for treating sewage |
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2019
- 2019-12-02 CN CN201922126781.XU patent/CN211255632U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772891A (en) * | 2021-09-24 | 2021-12-10 | 中国科学院沈阳应用生态研究所 | In-situ purification treatment method for rural water closet wastewater in cold region in winter |
| WO2026000050A1 (en) * | 2024-06-26 | 2026-01-02 | Minitrat Industria Comercio E Servico Ltda | Compact sewage treatment plant and method for treating sewage |
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