Rain sewage treatment device

Abstract

The utility model discloses a rain sewage treatment device. The rain sewage treatment device comprises a rain sewage collecting and distributing mechanism and a rain sewage treatment mechanism, the rainwater and sewage collecting and distributing mechanism comprises a collecting and regulating tank, and the collecting and regulating tank comprises a first sub-regulating tank and a second sub-regulating tank which are used for collecting rainwater and sewage, and a valve for connecting or disconnecting the first sub-regulating tank and the second sub-regulating tank; the rain sewage treatment mechanism comprises a sewage treatment chamber and spacing parts used for dividing the sewage treatment chamber into a plurality of sub-chambers, the sub-chambers at least comprise an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are communicated in sequence, the first sub-regulating tank is communicated with the anaerobic tank, and the sedimentation tank is communicated with a water outlet of the second sub-regulating tank; according to the rain sewage treatment device, rain sewage can be collected and treated with a simple structure and a small space ratio, automatic regulation and control can be achieved according to the inflow size of the rain sewage, and the rain sewage treatment device can have multiple functions of peak regulation, denitrification, dephosphorization, disinfection, clear water storage and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sewage treatment, and particularly relates to a rainwater and sewage treatment device. BACKGROUND

[0002] With the continuous improvement of people's living standards, new houses are increasing in suburbs and rural areas, water is relatively convenient, drainage water quality is poor, and there is no supporting rainwater and sewage collection pipe network, most of the sewage is directly discharged into rivers, causing serious environmental pollution. In order to control the pollution source, the discharged sewage needs to be treated.

[0003] Patent CN116440567A discloses a rainwater and sewage treatment device for urban residential areas, which comprises a treatment box and a water inlet pipe. The water inlet pipe is arranged on the side wall of the treatment box, and the water inlet pipe and the inside of the treatment box are communicated. A plurality of water outlets are arranged on the side wall of the water inlet pipe. A stable ring is arranged on the side wall of the treatment box. A rack is arranged on the side wall of the treatment box. The stable ring is rotatably connected to the inside of the rack. A rotating motor is arranged on the side wall of the rack. The output end of the rotating motor is connected to the treatment box. A scraper is slidably connected to the inside of the treatment box along the length direction. A plurality of clearance holes are arranged on the side wall of the scraper. A driving member is arranged in the treatment box to drive the scraper to move along the length direction of the treatment box. The treatment device not only has a complex structure, but also has no effect on denitrification and phosphorus removal, and the treatment capacity is insufficient.

[0004] Patent CN112592005B discloses a rainwater and sewage treatment system for expressway, which separates the early rainwater and sewage from the later rainwater and sewage. The early rainwater and sewage contains a large amount of oil and sediment, which is treated by oil separation and sedimentation in the early rainwater and sewage treatment device to reduce the concentration of pollutants. The later rainwater and sewage is directly introduced into the later rainwater and sewage treatment device for biodegradation together with the rainwater and sewage treated by the early rainwater and sewage treatment device. The rainwater and sewage is divided by two independent treatment devices, which reduces the operation load of the sewage treatment device. The device is relatively complex, and two independent treatment devices are needed to operate, which increases the investment cost and is not convenient to manage. Moreover, the device can only be installed on site, occupies a large area, and is difficult to meet the diversified life scene requirements.

[0005] In summary, there is an urgent need in the art for a rural life rainwater and sewage treatment comprehensive facility that is simple to operate, easy to manage, small in area, low in investment and low in operation cost. UTILITY MODEL CONTENTS

[0006] The utility model discloses a rainwater and sewage treatment device which can collect and treat rainwater and sewage with simple structure and small space ratio, and can automatically regulate according to the inflow size of rainwater and sewage, and can have multiple functions such as peak regulation, nitrogen removal, phosphorus removal, disinfection and clean water storage.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0008] A rainwater and sewage treatment device comprises a rainwater and sewage collection and distribution mechanism and a rainwater and sewage treatment mechanism.

[0009] The rainwater and sewage collection and distribution mechanism comprises a collection and adjustment tank, the collection and adjustment tank comprises a first sub-adjustment tank and a second sub-adjustment tank for collecting rainwater and sewage, and a valve for opening or blocking the first sub-adjustment tank and the second sub-adjustment tank.

[0010] The rainwater and sewage treatment mechanism comprises a sewage treatment chamber and a spacing component for dividing the sewage treatment chamber into multiple sub-chambers, at least one of the multiple sub-chambers comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are sequentially communicated, the first sub-adjustment tank is communicated with the anaerobic tank, and the sedimentation tank is communicated with a water outlet of the second sub-adjustment tank.

[0011] In some embodiments of the utility model, the upper part of the spacing component is formed with a water passing opening, and any two adjacent sub-chambers are communicated through the water passing opening.

[0012] In some embodiments of the utility model, the anaerobic tank, the anoxic tank, the aerobic tank and the sedimentation tank are integrally formed to constitute the sewage treatment chamber.

[0013] In some embodiments of the utility model, the rainwater and sewage treatment mechanism further comprises an aeration assembly, the aeration assembly comprises a gas supply fan and an aeration mechanism which is independently arranged in the anaerobic tank, the anoxic tank and the aerobic tank and communicated with the gas supply fan, and the aeration mechanism comprises a perforated aeration pipe or an aeration disc.

[0014] In some embodiments of the utility model, the rainwater and sewage treatment mechanism further comprises nitrogen removal MBBR biological filler and inclined pipe filler, the nitrogen removal MBBR biological filler is arranged in the anaerobic tank, the anoxic tank and the aerobic tank, and the inclined pipe filler is arranged in the sedimentation tank.

[0015] In some embodiments of the utility model, the rainwater and sewage treatment mechanism further includes sludge backflow pipe, sludge backflow pump, mixed liquid backflow pipe and mixed liquid backflow pump, the sludge backflow pipe is communicated with the sedimentation tank and the anaerobic tank respectively, the sludge backflow pump is arranged on the sludge backflow pipe and located above the collection and adjustment tank,

[0016] The mixed liquid backflow pipe is communicated with the aerobic tank and the anoxic tank respectively, and the mixed liquid backflow pump is arranged on the mixed liquid backflow pipe and located above the collection and adjustment tank.

[0017] In some embodiments of the utility model, the inside of the sedimentation tank is provided with an overflow weir, the outside of the overflow weir is provided with an overflow port, the overflow port is communicated with the water outlet of the second sub-adjustment tank, and the bottom of the sedimentation tank is provided with a sludge discharge flange.

[0018] In some embodiments of the utility model, the rainwater and sewage collection and distribution mechanism further includes a sewage pump, the sewage pump is communicated with the first sub-adjustment tank and the anaerobic tank respectively, and the sewage pump is located above the collection and adjustment tank.

[0019] In some embodiments of the utility model, the rainwater and sewage collection and distribution mechanism further includes a cover plate and an opening and closing machine for controlling the opening and closing of the valve, the cover plate is arranged above the collection and adjustment tank, and the opening and closing machine is arranged on the cover plate.

[0020] In some embodiments of the utility model, the rainwater and sewage treatment device further includes a support frame, the rainwater and sewage collection and distribution mechanism and the rainwater and sewage treatment mechanism are arranged on the support frame respectively, and the support frame is movably arranged.

[0021] Compared with the prior art, the utility model has the following advantages due to the above technical scheme:

[0022] The rainwater and sewage treatment device of the utility model has the advantages of simple structure, small space ratio, rainwater and sewage collection and treatment, automatic biochemical treatment flow control according to the water inflow of rainwater and sewage, multiple functions such as peak regulation, nitrogen removal, phosphorus removal, disinfection and clean water storage, and suitability for meeting diversified rural living scene requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Figure 1 It is a structural schematic view of the rainwater and sewage treatment device of the utility model;

[0025] Figure 2 It is one of the local schematic views of the rainwater and sewage treatment device of the utility model;

[0026] Figure 3 It is the second local schematic view of the rainwater and sewage treatment device of the utility model;

[0027] Figure 4 It is the third local schematic view of the rainwater and sewage treatment device of the utility model;

[0028] In the drawing: 100, rainwater and sewage collecting and distributing mechanism; 110, collecting and adjusting tank; 111, first sub-adjusting tank; 112, second sub-adjusting tank; 113, valve; 114, sewage pump; 115, cover plate; 116, hoist; 200, rainwater and sewage treatment mechanism; 210, anaerobic tank; 220, anoxic tank; 230, aerobic tank; 240, sedimentation tank; 241, overflow weir; 242, overflow port; 243, sludge discharge flange port; 250, air supply fan; 260, aeration mechanism; 271, denitrification MBBR biological filler; 272, inclined pipe filler; 281, sludge return pipe; 282, sludge return pump; 283, mixed liquid return pipe; 284, mixed liquid return pump; 291, protective cover; 292, electric control cabinet; 293, manhole; 294, manhole; 295, water inlet flange port; 296, sludge return flange port; 297, mixed liquid return flange port; 298, air inlet flange port; 299, rainwater and sewage inlet. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, clear and understandable, the utility model will be described in detail below in combination with the drawings and specific embodiments. In the following description, a large number of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0031] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0032] The preferred embodiments of the utility model will be described in detail below in combination with the drawings.

[0033] Referring to Figures 1 to 4 As shown in the drawing, the example provides a rainwater and sewage treatment device, which comprises a rainwater and sewage collecting and distributing mechanism 100 and a rainwater and sewage treatment mechanism 200, and the rainwater and sewage collecting and distributing mechanism 100 and the rainwater and sewage treatment mechanism 200 are arranged side by side.

[0034] The rainwater and sewage collecting and distributing mechanism 100 comprises a collecting and adjusting pool 110, which comprises a first sub-adjusting pool 111 for collecting rainwater and sewage, a second sub-adjusting pool 112, and a valve 113 for connecting or isolating the first sub-adjusting pool 111 and the second sub-adjusting pool 112; see Figure 1 As shown, rainwater and sewage is introduced from the rainwater and sewage inlet 299 of the first sub-adjusting pool 111 through the pipe network and is buffered in the first sub-adjusting pool 111. When the flow rate of the rainwater and sewage entering is less than or equal to the maximum processing capacity of the rainwater and sewage processing mechanism 200, the valve 113 is in a closed state. When the flow rate of the rainwater and sewage entering is greater than the maximum processing capacity of the rainwater and sewage processing mechanism 200, the valve 113 is in an open state. After the valve 113 is opened, a part of the rainwater and sewage can be directly diverted into the second sub-adjusting pool 112 and discharged directly through the water outlet of the second sub-adjusting pool 112, so as to avoid overloading of the rainwater and sewage processing mechanism due to too large flow rate of the rainwater and sewage, thereby reducing unexpected equipment damage. Generally, the processing load of the rainwater and sewage processing mechanism can be designed according to the conventional rainwater and sewage generation amount at the beginning of design.

[0035] The rainwater and sewage processing mechanism 200 comprises a sewage processing chamber and a spacing component for separating the sewage processing chamber into multiple sub-chambers. Further, the upper part of the spacing component is formed with a water passing opening, and any two adjacent sub-chambers are communicated through the water passing opening. Further, in this example, the multiple sub-chambers at least comprise an anaerobic pool 210, an anoxic pool 220, an aerobic pool 230, and a sedimentation pool 240 in sequence, the first sub-adjusting pool 111 is communicated with the anaerobic pool 210, and the sedimentation pool 240 is communicated with the water outlet of the second sub-adjusting pool 112.

[0036] In this example, the anaerobic pool 210, the anoxic pool 220, the aerobic pool 230, and the sedimentation pool 240 are integrally formed to constitute the sewage processing chamber, which is beneficial to further simplify the space ratio and be integrally moved subsequently, and is convenient for being arranged in a specific living area as needed.

[0037] In this example, the rainwater and sewage processing mechanism 200 further comprises an aeration assembly, which comprises a gas supply fan 250 and an aeration mechanism 260 independently arranged in the anaerobic pool 210, the anoxic pool 220, and the aerobic pool 230 and communicated with the gas supply fan 250. The aeration mechanism 260 comprises a perforated aeration pipe or an aeration disc. The perforated aeration pipe can be arranged in the anaerobic pool 210 and the anoxic pool 220, and the aeration disc can be arranged in the aerobic pool 230, so as to provide better aerobic conditions for aerobic bacteria.

[0038] In this example, the rainwater and sewage treatment mechanism 200 further comprises a denitrification MBBR biological filler 271, an inclined pipe filler 272, a sludge return pipe 281, a sludge return pump 282, a mixed liquid return pipe 283 and a mixed liquid return pump 284, the denitrification MBBR biological filler 271 is arranged in the anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230, and the inclined pipe filler 272 is arranged in the sedimentation tank 240; the sludge return pipe 281 is in communication with the sedimentation tank 240 and the anaerobic tank 210 respectively, the sludge return pump 282 is arranged on the sludge return pipe 281 and located above the collection and adjustment tank 110; the mixed liquid return pipe 283 is in communication with the aerobic tank 230 and the anoxic tank 220 respectively, and the mixed liquid return pump 284 is arranged on the mixed liquid return pipe 283 and located above the collection and adjustment tank 110.

[0039] In this example, the overflow weir 241 is arranged at the upper part of the inside of the sedimentation tank 240, the overflow weir 241 is arranged outside the overflow port 242, the overflow port 242 is in communication with the water outlet of the second sub-adjustment tank 112, and the bottom of the sedimentation tank 240 is provided with a sludge discharge flange port 243.

[0040] In this example, the rainwater and sewage collection and distribution mechanism 100 further comprises a sewage pump 114, a cover plate 115, an opening and closing machine 116 for controlling the opening and closing of the valve 113, the sewage pump 114 is in communication with the first sub-adjustment tank 111 and the anaerobic tank 210 respectively, the sewage pump 114 is located above the collection and adjustment tank 110 and arranged on the cover plate 115, the cover plate 115 is arranged above the collection and adjustment tank 110, and the opening and closing machine 116 is arranged on the cover plate 115, further, the sewage pump 114, the opening and closing machine 116, the sludge return pump 282 and the mixed liquid return pump 284 are arranged on the cover plate 115, and the positions of each other are not limited, which can be set as needed.

[0041] In this example, the rainwater and sewage treatment device further comprises a support frame, the rainwater and sewage collection and distribution mechanism and the rainwater and sewage treatment mechanism are arranged on the support frame, and the support frame is movably arranged, so that the entire device can be more conveniently moved to the required living scene, which is convenient, fast, flexible and easy to operate.

[0042] In this example, the rainwater and sewage collecting and distributing mechanism 100 further comprises a protective cover 291 covering the cover plate 115, and an electric control cabinet 292 is arranged on the protective cover 291. The electric control cabinet 292 can be electrically connected with the sewage pump 114, the opening and closing machine 116, the air supply fan 250, the sludge backflow pump 282, the mixed liquid backflow pump 284 and the like respectively, so as to realize the control of the start of them. Meanwhile, the example further provides an inspection hole 293 on the cover plate 115, so as to facilitate the inspection in a specific inspection or failure, and further provides a manhole 294 on the anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230 respectively, and further provides a water inlet flange opening 295 and a sludge backflow flange opening 296 on the anaerobic tank 210. The water inlet flange opening 295 is used for the inlet of rainwater and sewage, and the sludge backflow flange opening 296 is used for the backflow of part of the sludge in the sedimentation tank 240 to the anaerobic tank 210. A mixed liquid backflow flange opening 297 is arranged on the anoxic tank 210, which is used for the backflow of part of the mixed liquid in the aerobic tank 230 to the anoxic tank 220. Further, air inlet flange openings 298 are arranged on the anaerobic tank 210, the anoxic tank 220 and the aerobic tank 230 respectively, so as to facilitate the inlet of aeration gas.

[0043] Working process: rainwater and sewage are pumped into the anaerobic tank 210 from the first sub-regulating tank 111 by the sewage pump 114. Nitrogen removal MBBR biological fillers 271 are arranged in the anaerobic tank 210, and hydrolysis acidification reaction is carried out by aeration stirring to degrade macromolecular organic matter. Then, the sewage enters the anoxic tank 220 from the water inlet by overflow. Nitrogen removal MBBR biological fillers 271 are also arranged in the anoxic tank 220, and under the action of aeration stirring, the nitrite nitrogen and nitrate nitrogen in the backflow mixed liquid of the aerobic tank 230 are converted into nitrogen gas and released under the action of denitrifying bacteria. After that, the treated sewage enters the aerobic tank 230 from the water inlet by overflow. Nitrogen removal MBBR biological fillers 271 are also arranged in the aerobic tank 230. Under the condition of aeration and oxygenation, the ammonia nitrogen is converted into nitrate nitrogen, and the extra remaining carbon source is decomposed. The water body treated by the aerobic tank 230 enters the sedimentation tank 240 from the water inlet by overflow. In the sedimentation tank 240, the slanted pipe fillers 272 are installed. After the sewage containing sludge is deposited, the supernatant is discharged from the overflow port 242 of the overflow weir 241. The supernatant is directly discharged from the water outlet of the second sub-regulating tank 112 through a pipeline. The sedimentation tank supplements the sludge to the front-end anaerobic tank 210 by the sludge backflow pump 282, and the remaining sludge is discharged according to the situation.

[0044] In summary, the rainwater and sewage treatment device of the utility model has the advantages that the collecting and adjusting pool and the rainwater and sewage treatment mechanism with specific structures are arranged, the rainwater and sewage are collected and efficiently biochemically treated, the opening and closing of the valve can be controlled according to the inflow of the rainwater and sewage, the rainwater and sewage treatment mechanism is protected, the capacity of the rainwater and sewage treatment mechanism for treating sewage is maximized, the damage and destruction of equipment caused by too much rainwater and sewage and too large treatment load are avoided, especially, the anaerobic pool, the anoxic pool, the aerobic pool and the sedimentation pool of the rainwater and sewage treatment mechanism are integrated in a sewage treatment chamber, the space ratio is greatly reduced, the integrated setting is suitable, the setting position can be flexibly adjusted, and a certain amount of surplus can meet long-term needs, and the novel rainwater and sewage treatment device can collect and treat rainwater and sewage with simple structure and small space ratio, can automatically control the flow of biochemical treatment according to the inflow of rainwater and sewage, can have multiple functions such as peak regulation, nitrogen removal, phosphorus removal, disinfection and clean water storage, and is suitable for meeting diversified life scene needs in rural areas.

[0045] The above examples are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable people skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

[0046] The endpoints of the ranges and any values disclosed herein are not limited to the precise values recited. The ranges and values should be interpreted as approximations. Individual endpoints are not to be construed as being precisely at the values indicated. The endpoints of the ranges and values are approximations that allow the measurement of the range of values. The endpoints of the ranges and values are not to be construed as being precisely at the values indicated. The ranges and values should be interpreted as approximations. Individual endpoints are not to be construed as being precisely at the values indicated.

Claims

1. A device for treating stormwater, characterized in that The rainwater and sewage treatment device comprises a rainwater and sewage collecting and distributing mechanism and a rainwater and sewage treatment mechanism. The rainwater and sewage collecting and distributing mechanism comprises a collecting and adjusting tank, the collecting and adjusting tank comprises a first sub-adjusting tank for collecting rainwater, a second sub-adjusting tank, and a valve for opening or blocking the first sub-adjusting tank and the second sub-adjusting tank. The rainwater and sewage treatment mechanism comprises a sewage treatment chamber and a spacing component for separating the sewage treatment chamber into a plurality of sub-chambers, at least one of the plurality of sub-chambers comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank in sequence, the first sub-adjusting tank is communicated with the anaerobic tank, and the sedimentation tank is communicated with a water outlet of the second sub-adjusting tank.

2. The device as claimed in claim 1, wherein, An upper portion of the spacing component is formed with a water overflow port, and any two adjacent sub-chambers are communicated through the water overflow port.

3. The device as claimed in claim 1, wherein, The anaerobic tank, the anoxic tank, the aerobic tank and the sedimentation tank are integrally formed to constitute the sewage treatment chamber.

4. The device as claimed in claim 1, wherein, The rainwater and sewage treatment mechanism further comprises an aeration assembly, the aeration assembly comprises a gas supply fan and an aeration mechanism independently arranged in the anaerobic tank, the anoxic tank and the aerobic tank and communicated with the gas supply fan, and the aeration mechanism comprises a perforated aeration pipe or an aeration disc.

5. The device as claimed in claim 1, wherein, The rainwater and sewage treatment mechanism further comprises denitrification MBBR biological fillers and an inclined pipe filler, the denitrification MBBR biological fillers are arranged in the anaerobic tank, the anoxic tank and the aerobic tank, and the inclined pipe filler is arranged in the sedimentation tank.

6. The device as claimed in claim 1, wherein, The rainwater and sewage treatment mechanism further comprises a sludge return pipe, a sludge return pump, a mixed liquid return pipe and a mixed liquid return pump, the sludge return pipe is communicated with the sedimentation tank and the anaerobic tank respectively, and the sludge return pump is arranged on the sludge return pipe and located above the collecting and adjusting tank. The mixed liquid return pipe is communicated with the aerobic tank and the anoxic tank respectively, and the mixed liquid return pump is arranged on the mixed liquid return pipe and located above the collecting and adjusting tank.

7. The device as claimed in claim 1, wherein, An overflow weir is arranged above an inner portion of the sedimentation tank, an overflow port is arranged outside the overflow weir, the overflow port is communicated with the water outlet of the second sub-adjusting tank, and a sludge discharge flange port is arranged at a bottom of the sedimentation tank.

8. The device as claimed in claim 1, wherein, The rainwater and sewage collecting and distributing mechanism further comprises a sewage pump, the sewage pump is communicated with the first sub-adjusting tank and the anaerobic tank respectively, and the sewage pump is located above the collecting and adjusting tank.

9. The device as claimed in claim 1, wherein, The rainwater and sewage collecting and distributing mechanism further comprises a cover plate and an opening and closing machine for controlling opening and closing of the valve, the cover plate is arranged above the collecting and adjusting tank, and the opening and closing machine is arranged on the cover plate.

10. The device as claimed in claim 1, wherein, The rainwater and sewage treatment device further comprises a support frame, the rainwater and sewage collecting and distributing mechanism and the rainwater and sewage treatment mechanism are arranged on the support frame respectively, and the support frame is movably arranged.

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