CN211896512U - Integrated sewage treatment system - Google Patents
Integrated sewage treatment system Download PDFInfo
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- CN211896512U CN211896512U CN201921870777.8U CN201921870777U CN211896512U CN 211896512 U CN211896512 U CN 211896512U CN 201921870777 U CN201921870777 U CN 201921870777U CN 211896512 U CN211896512 U CN 211896512U
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Abstract
The utility model provides an integration sewage treatment system relates to the sewage treatment field, can avoid the great, equipment operation risk height of current sewage treatment device area, noise is big, drawback such as investment height. In the sewage treatment system, a sewage tank comprises an anaerobic zone, an anoxic zone, an aerobic zone and a settling zone which are separated by baffles; the sewage treatment device comprises a rotational flow aeration and stirring integrated fan, a sludge air-stripping device, an aeration disc and a rotational flow stirrer; the main pipeline of the rotational flow aeration and stirring integrated fan comprises a first port and a second port; the first port is communicated to the aerobic zone through an aeration pipe, and the second port is connected with a sludge stripping device positioned in the sedimentation zone through a pipeline; the anaerobic zone and the anoxic zone are respectively provided with a rotational flow stirrer, and the rotational flow stirrer is connected with an aeration pipe positioned in the aerobic zone; a plurality of aeration discs connected with the aeration pipes are arranged in the bottom of the aerobic zone; the main pipeline of the sludge air-stripping device is divided into a return pipe and a sludge discharge pipe.
Description
Technical Field
The utility model relates to a sewage treatment field especially relates to a sewage treatment system.
Background
By the end of 2018, 139538 million people are the general population in mainland in China, 56401 million people are the constant population in rural areas, in other words, about 5.6 million rural population in villages and towns produce domestic sewage. The distributed domestic sewage is mainly domestic sewage mainly comprising sewage of rural residents for bathing, washing, cleaning toilets, kitchen residues and the like. The main characteristics are as follows: the sewage containing area of the drainage is small, the sewage quantity is small, and the variation coefficient of the water quality and the water quantity of the inlet water is large; the mixed drainage of industrial wastewater and the mixed phenomenon of runoff sewage exist in some rural areas; due to the fact that part of rural financial conditions, technical strength and the like are weak, even if the sewage treatment stations are built, the sewage treatment stations which are high in energy consumption, multiple in operation and difficult to manage can be difficult to maintain. Therefore, the new technology for treating sewage in new rural areas in China should be selected from the new technology for treating sewage, which is economical, efficient, energy-saving, simple, convenient and feasible, good in treatment effect, strong in impact resistance and stable in operation.
The integrated distributed sewage treatment equipment is also produced under the condition, and on the premise of meeting the standard of rural domestic sewage treatment, the whole equipment can be flexibly assembled according to the topographic water quantity and water quality characteristics without specially-assigned management, building of a sewage treatment plant and modular construction, is easy to operate, has the advantages of strong practicability and the like. The decentralized sewage treatment device is concerned by experts in the field of domestic and foreign sewage treatment due to the advantages, and becomes one of the research hotspots. However, the existing integrated sewage treatment equipment occupies a large area, has high equipment operation risk, large noise and high investment.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a sewage treatment system can avoid the big, equipment operation risk height of current sewage treatment device area, noise big, drawback such as investment height.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
the embodiment of the application provides a sewage treatment system, which comprises a sewage pool and a sewage treatment device; the sewage tank comprises an anaerobic zone, an anoxic zone, an aerobic zone and a settling zone which are separated by baffles; the sewage tank is provided with a water inlet on the side wall of the anaerobic zone and a water outlet on the side wall of the sedimentation zone; the aerobic zone is adjacent to the sedimentation zone, and an opening is arranged on a baffle between the aerobic zone and the sedimentation zone; the aerobic zone is adjacent to the anoxic zone, and an inner reflux hole is formed in a baffle plate between the aerobic zone and the anoxic zone; the anoxic zone is adjacent to the anaerobic zone, and an opening is formed in a baffle between the anoxic zone and the anaerobic zone; the sewage treatment device comprises a rotational flow aeration and stirring integrated fan, a sludge air-stripping device, an aeration disc and a rotational flow stirrer; the main pipeline of the rotational flow aeration and stirring integrated fan comprises a first port and a second port; the first port is communicated with the aerobic zone through an aerator pipe, and the second port is connected with the sludge stripping device positioned in the settling zone through a pipeline; swirl flow stirrers are respectively arranged in the anaerobic zone and the anoxic zone and are connected with an aeration pipe positioned in the aerobic zone; a plurality of aeration discs connected with the aeration pipe are arranged in the bottom of the aerobic zone; the main pipeline of the sludge stripping device is divided into a return pipe and a sludge discharge pipe; the return pipe is communicated with the anaerobic zone, and the sludge discharge pipe discharges sludge in the settling zone.
In some embodiments, the aeration pipe leading to the aerobic zone of the cyclone aeration and stirring integrated fan, the pipeline leading to the sludge stripping device of the cyclone aeration and stirring integrated fan and the sludge discharge pipe connected with the sludge stripping device are respectively provided with a control valve.
In some embodiments, the bottom of the settling zone is provided with an inclined plate having an inclination angle with the horizontal direction; the sludge stripping device is arranged on the relatively lower side of the inclined plate.
In some embodiments, a check valve is arranged on a main pipeline of the rotational flow aeration and stirring integrated fan.
In some embodiments, the baffle plate of the anaerobic zone adjacent to the aerobic zone is provided with a fixing hole for fixing the rotational flow stirrer; the baffle plate of the anoxic zone adjacent to the aerobic zone is provided with a fixing hole for fixing the rotational flow stirrer; the baffle plate of the anaerobic zone, the anoxic zone and the aerobic zone which are not adjacent and are close to one side of the sedimentation zone is provided with a fixing hole for fixing the return pipe.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the main equipment in the sewage treatment system is a rotational flow aeration and stirring integrated fan and a sludge air-stripping device, so that the whole equipment is simple, the investment is low, the noise is low, and no secondary pollution is caused; meanwhile, the method is simple and easy to operate, small in occupied area, small in sludge production amount and easy to treat, and ensures stable water quality of effluent of the distributed small sewage treatment station.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a sewage treatment system provided in an embodiment of the present application, in which:
01-a sewage treatment system; 10-a sewage tank 201-a rotational flow aeration stirring integrated fan; 202-a sludge stripping device; 203-an aeration disc; 204-1 and 204-2-cyclone stirrers; 205-a sloping plate; a1-anaerobic zone; a2-anoxic zone; a3-aerobic zone; a4-precipitation zone; an L-baffle; w1-water inlet; w2-water outlet; t1, T3-opening; t2-internal recirculation hole; d1-an aerator pipe; d2-pipe; e1-return line; e2-mud pipe; k1, K2, K3-control valves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the embodiments of the invention do not denote any order, quantity, or importance, but rather the embodiments are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. Mounting, "connecting," and the like are to be construed broadly and may, for example, be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "upper," "lower," "left," "right," "horizontal," and "vertical" are used merely for relative terms as to the orientation of the elements in the drawings, and these directional terms are relative terms, which are used for descriptive and clarity relative to the elements and which can vary accordingly depending on the orientation in which the elements in the drawings are placed.
Fig. 1 provides a sewage treatment system 01 for the embodiment of the present application, and the sewage treatment system 01 includes a sewage tank 10 and sewage treatment devices (including 201, 202, 203, 204).
The wastewater tank 10 includes an anaerobic zone a1, an anoxic zone a2, an aerobic zone A3, and a settling zone a4, which are separated by a baffle L (which may also be referred to as a guide wall). The sewage tank 10 is provided with a water inlet W1 on the side wall of the anaerobic zone a1, and a water outlet W2 on the side wall of the settling zone a 4.
In the wastewater tank 10, the aerobic zone A3 is adjacent to the sedimentation zone A4, and an opening T1 is arranged on the baffle plate L between the aerobic zone A3 and the sedimentation zone A4; the aerobic zone A3 is adjacent to the anoxic zone A2, and an inner reflux hole T2 is arranged on the baffle plate L between the aerobic zone A3 and the anoxic zone A2; the anoxic zone A2 is adjacent to the anaerobic zone A1, and an opening T3 is arranged on the baffle plate L between the anoxic zone A2 and the anaerobic zone A1.
The above sewage treatment apparatus comprises: a cyclone aeration and stirring integrated fan 201, a sludge stripping device 202, an aeration disc 203 and cyclone stirrers (204-1, 204-2).
Wherein, the cyclone aeration and stirring integrated fan 201 can be provided with a fan room independently. Illustratively, as shown in FIG. 1, a fan house may be provided adjacent to, but not limited to, the settling zone A4 and the anaerobic zone A1; the fan room can also be independently arranged, and the fan room can be arranged as required in practice.
The main pipeline of the swirl aeration-stirring integrated fan 201 comprises a first port and a second port. Wherein the first port leads to aerobic zone A3 via aeration pipe D1 and the second port is connected to sludge stripping apparatus 202 located in settling zone a4 via conduit D2 as shown in figure 1.
In addition, in the sewage treatment system 01, a plurality of aeration disks 203 connected to the aeration pipe D1 are provided in the bottom of the aerobic zone a 3. In fig. 1, only 6 aeration disks 203 are schematically illustrated as an example, and the specific number of the aeration disks 203 is not limited in the present application and may be actually set as needed.
A cyclone stirrer 204-1 is arranged in the anaerobic zone A1, and the cyclone stirrer 204-1 is connected with an aeration pipe D1 positioned in the aerobic zone A3; a swirl agitator 204-2 is also provided in the anoxic zone A2, and the swirl agitator 204-2 is connected to an aeration tube D1 located in the aerobic zone A3.
Illustratively, in some embodiments, in order to fix the swirl stirrers 204-1, 204-2, fixing holes for fixing the swirl stirrer 204-1 may be provided on the baffle plate of the anaerobic zone A1 adjacent to the aerobic zone A3; the baffle plate of the anoxic zone A2 adjacent to the aerobic zone A3 is provided with a fixed hole for fixing the rotational flow stirrer 204-2. Of course, in some embodiments, the fixing frame can be used for fixing alone.
The main pipeline of the sludge stripping device 202 is divided into a return pipe E1 and a sludge discharge pipe E2, wherein the return pipe E1 leads to the anaerobic zone A1 to realize external return, and the sludge discharge pipe E2 is used for discharging sludge in the settling zone A4.
Illustratively, in some embodiments, in order to fix the return pipe E1, fixing holes for fixing the return pipe E1 may be provided on the baffle plate L on the side of the anaerobic zone a1, which is not adjacent to the anoxic zone a2 and the aerobic zone A3, and is close to the settling zone a 4. Of course, in some embodiments, the fixing frame can be used for fixing alone.
When the sewage treatment system provided by the embodiment of the application is adopted, sewage can sequentially pass through the anaerobic zone (accompanied by external reflux), the anoxic zone (accompanied by internal reflux) and the aerobic zone, and the sewage is treated by using an activated sludge method; the sludge mixed liquid flows to a precipitation area for mud-water separation, effluent is discharged through a water outlet after reaching standards, and precipitated sludge is collected through precipitation; simultaneously in sewage treatment system, through aeration dish and whirl agitator collaborative stirring system, the air-out main line of a whirl aeration stirring body fan is divided into two and is connected confession aeration pipe and air stripping mud device respectively, provides the oxygen content in the aerobic zone, the transmission kinetic energy of agitator and the kinetic energy of inside and outside backward flow simultaneously. One end of the air-stripping sludge device is connected with the external reflux pipe, the other end of the air-stripping sludge device is connected with the sludge discharge pipe, the air-stripping sludge device receives air quantity brought by the fan and drives sludge to continuously and externally reflux in a compressed air mode, the gathered sludge is delivered to the outside for treatment, the sludge mixed liquid is externally refluxed, and the denitrification function of activated sludge in the anaerobic zone is enhanced, so that efficient denitrification is achieved.
The integrated sewage treatment device in the prior art usually needs three devices (two fans and a sludge reflux pump or a fan and two pumps), wherein in the first case, one fan is used as an aeration oxygen supply device, the other fan is used as a stirring transmission device, and the sludge reflux pump performs sludge reflux; in the second case, a fan is used as an aeration and oxygen supply device, a pump is used as a reflux device, and a pump is used as a sludge discharge device.
Compared with the prior art, the main equipment in the sewage treatment system provided by the embodiment of the application is the rotational flow aeration and stirring integrated fan and the sludge stripping device, so that the whole equipment is simple, the investment is low, the noise is low, and no secondary pollution is caused; meanwhile, the method is simple and easy to operate, small in occupied area, small in sludge production amount and easy to treat, and ensures stable water quality of effluent of the distributed small sewage treatment station.
On the basis, in some embodiments, in order to better control the whole sewage treatment apparatus (or the sewage treatment system 01), as shown in fig. 1, a control valve K1 may be provided on an aeration pipe D1 of the integrated cyclone aeration-stirring fan 201 leading to the aerobic zone a3, and a control valve K2 may be provided on a pipeline D2 of the integrated cyclone aeration-stirring fan 201 leading to the sludge stripping apparatus 202, so as to control the air flow of the aeration pipe D1 and the pipeline D2 by controlling the control valves K1 and K2.
In some embodiments, as shown in fig. 1, a control valve K3 may be provided on the sludge discharge pipe E2 connected to the air-lift sludge device 202 to control the sludge discharge of the sludge discharge pipe E2, and when the sludge discharge is required, the control valve K3 is opened to discharge the sludge for pressure relief.
In some actual sewage treatment processes, the control valve K3 is normally closed; the air quantity brought by the fan is received by the sludge air-stripping device 202, the sludge is driven to continuously flow back outwards in a compressed air mode, when sludge needs to be discharged, the control valve K3 can be manually opened to release pressure, and the sludge gathered at the bottom of the settling zone is sent outwards for treatment; then, the control valve K3 is closed, and the sludge mixed liquor continues to flow back.
In some embodiments, in order to prevent the muddy water mixed liquid from flowing back to the swirl aeration-stirring integrated fan 201 in the wastewater tank, the swirl aeration-stirring integrated fan 201 may be damaged, and as shown in fig. 1, a check valve S may be provided on a main pipe of the swirl aeration-stirring integrated fan 201.
In some embodiments, in order to increase the settling velocity of the sludge in the settling zone a4 so as to discharge the sludge through the sludge discharge pipe E2 as soon as possible by the air-stripping sludge device 202, as shown in fig. 1, an inclined plate 205 may be provided at the bottom of the settling zone a4, the inclined plate 205 having an inclination angle with the horizontal direction; the sludge stripping device 202 is disposed on the relatively lower side of the inclined plate 205.
The whole sewage treatment process will be schematically described below by taking the sewage treatment system 01 shown in fig. 1 as an example.
(1) Firstly, sewage enters an anaerobic zone A1 through a water inlet W1, an external reflux sludge mixed liquid is obtained in the anaerobic zone A1 through a stripping sludge reflux device 202, and the sewage is uniformly stirred through a rotational flow stirrer 204-2.
(2) The sewage in the anaerobic zone A1 automatically flows into the anoxic zone A2 through the opening T2 on the baffle plate L, the anoxic zone A2 has internal reflux mixed liquor brought in from the aerobic zone A3 through the rotational flow aeration from the internal reflux holes T2, and the mixture is uniformly stirred by the rotational flow stirrer 204-1.
(3) The sewage in the anoxic zone A2 flows into the aerobic zone A3 through self-flow, and the rotational flow aeration disc 203 in the aerobic zone A3 is aerated to maintain the activated sludge nitrifying bacteria in the sewage treatment system to perform nitrification reaction under aerobic conditions.
(4) The mud-water mixed liquid in the aerobic zone A3 automatically flows into the settling zone A4 through the opening T1, the mud-water mixed liquid is separated in the settling zone A4, the treated water is discharged from the water outlet W2, and the mud is settled into the bottom and is gathered at the bottom through the inclined plate 205.
(5) The cyclone aeration and stirring integrated fan 202 controls air supply to the aerobic zone A3 and the air-stripping sludge device 202 through control valves (K1 and K2), supplies oxygen to an aeration disc 203 of the aerobic zone A3, provides kinetic energy of cyclone stirrers 204-1 and 204-2 and internal reflux at the same time, and drives stirring and internal reflux of an anoxic zone A2 and an anaerobic zone A1; the sludge stripping device 202 drives the sludge mixed liquid to flow back to the anaerobic zone A1 through the return pipe E1 by compressing the received air as kinetic energy. Illustratively, the external reflux ratio can be designed to be 50% to 100%.
(6) When the sludge storage amount of the inclined plate 205 is too much, the control valve K3 on the sludge discharge pipe E2 can be manually opened to realize manual sludge discharge, and a small amount of residual sludge is treated.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. An integrated sewage treatment system is characterized in that: comprises a sewage pool and a sewage treatment device;
the sewage tank comprises an anaerobic zone, an anoxic zone, an aerobic zone and a settling zone which are separated by baffles; the sewage tank is provided with a water inlet on the side wall of the anaerobic zone and a water outlet on the side wall of the sedimentation zone;
the aerobic zone is adjacent to the sedimentation zone, and an opening is arranged on a baffle between the aerobic zone and the sedimentation zone; the aerobic zone is adjacent to the anoxic zone, and an inner reflux hole is formed in a baffle plate between the aerobic zone and the anoxic zone; the anoxic zone is adjacent to the anaerobic zone, and an opening is formed in a baffle between the anoxic zone and the anaerobic zone;
the sewage treatment device comprises a rotational flow aeration and stirring integrated fan, a sludge air-stripping device, an aeration disc and a rotational flow stirrer;
the main pipeline of the rotational flow aeration and stirring integrated fan comprises a first port and a second port; the first port is communicated with the aerobic zone through an aerator pipe, and the second port is connected with the sludge stripping device positioned in the settling zone through a pipeline;
and swirl stirrers are respectively arranged in the anaerobic zone and the anoxic zone and are connected with an aeration pipe positioned in the aerobic zone.
2. The integrated wastewater treatment system according to claim 1, wherein: a plurality of aeration discs connected with the aeration pipe are arranged in the bottom of the aerobic zone;
the main pipeline of the sludge stripping device is divided into a return pipe and a sludge discharge pipe; the return pipe is communicated with the anaerobic zone, and the sludge discharge pipe discharges sludge in the settling zone.
3. The integrated wastewater treatment system according to claim 1, wherein:
and the pipeline of the cyclone aeration and stirring integrated fan which is communicated with the air stripping sludge device and the sludge discharge pipe connected with the air stripping sludge device are respectively provided with a control valve.
4. The integrated wastewater treatment system according to claim 1, wherein:
an inclined plate is arranged at the bottom of the settling zone, and an inclined angle is formed between the inclined plate and the horizontal direction; the sludge stripping device is arranged on the relatively lower side of the inclined plate.
5. The integrated wastewater treatment system according to claim 1, wherein:
and a check valve is arranged on a main pipeline of the rotational flow aeration and stirring integrated fan.
6. The integrated wastewater treatment system according to claim 2, wherein:
a baffle plate of the anaerobic zone adjacent to the aerobic zone is provided with a fixing hole for fixing the rotational flow stirrer;
the baffle plate of the anoxic zone adjacent to the aerobic zone is provided with a fixing hole for fixing the rotational flow stirrer;
the baffle plate of the anaerobic zone, the anoxic zone and the aerobic zone which are not adjacent and are close to one side of the sedimentation zone is provided with a fixing hole for fixing the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870777.8U CN211896512U (en) | 2019-11-01 | 2019-11-01 | Integrated sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870777.8U CN211896512U (en) | 2019-11-01 | 2019-11-01 | Integrated sewage treatment system |
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| CN211896512U true CN211896512U (en) | 2020-11-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877949A (en) * | 2019-11-01 | 2020-03-13 | 昆明滇池水务股份有限公司 | Integrated sewage treatment system and method |
| CN112939414A (en) * | 2021-03-19 | 2021-06-11 | 北控水务(中国)投资有限公司 | Short-time efficient sludge concentration system |
| CN113413981A (en) * | 2021-05-31 | 2021-09-21 | 安徽泓济环境科技有限公司 | Kitchen waste liquid preprocessing device |
-
2019
- 2019-11-01 CN CN201921870777.8U patent/CN211896512U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877949A (en) * | 2019-11-01 | 2020-03-13 | 昆明滇池水务股份有限公司 | Integrated sewage treatment system and method |
| CN112939414A (en) * | 2021-03-19 | 2021-06-11 | 北控水务(中国)投资有限公司 | Short-time efficient sludge concentration system |
| CN113413981A (en) * | 2021-05-31 | 2021-09-21 | 安徽泓济环境科技有限公司 | Kitchen waste liquid preprocessing device |
| CN113413981B (en) * | 2021-05-31 | 2021-12-24 | 安徽泓济环境科技有限公司 | Kitchen waste liquid preprocessing device |
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