CN109179908B - Assembled A/O pond and assembled sewage treatment system - Google Patents
Assembled A/O pond and assembled sewage treatment system Download PDFInfo
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- CN109179908B CN109179908B CN201811264411.6A CN201811264411A CN109179908B CN 109179908 B CN109179908 B CN 109179908B CN 201811264411 A CN201811264411 A CN 201811264411A CN 109179908 B CN109179908 B CN 109179908B
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- sand
- tank
- flocculation
- assembled
- pipe
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- 239000010865 sewage Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000005189 flocculation Methods 0.000 claims abstract description 59
- 230000016615 flocculation Effects 0.000 claims abstract description 59
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 238000010992 reflux Methods 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims description 77
- 239000004567 concrete Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 210000003298 dental enamel Anatomy 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an assembled A/O pool and an assembled sewage treatment system, wherein the assembled A/O pool comprises a tank body, a baffle plate and a reflux pump; the partition board is arranged in the tank body to divide the space in the tank body into an anoxic zone and an aerobic zone; the reflux pump is arranged in the aerobic zone, a reflux pipe is connected to the reflux pump, and the tail end of the reflux pipe is vertically arranged to enable the middle part or the lower part of the anoxic zone to form vertical circulation; a water inlet pipe communicated with the upper end of the anoxic zone is also arranged on the tank body; the water inlet pipe is horizontally arranged to form a horizontal circulation on the upper part of the anoxic zone. The sewage treatment system comprises an adjusting tank, an assembled A/O tank, a sedimentation tank and a filter which are connected in sequence through pipelines; the filter comprises a shell, a filtering system and a flocculation device; the filtering system and the flocculation device are arranged in the shell. The assembled sewage treatment system can be prepared in advance in a factory, and only needs to be installed or assembled on a construction site, so that the construction period is shortened, and the construction cost is saved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an assembled A/O pool and an assembled sewage treatment system.
Background
The biological treatment tank adopted by the existing sewage treatment plant is usually of a civil engineering structure, namely, after digging pits, concrete is poured into the pit to form a treatment tank, for example, the existing biological treatment tank (A/O tank) comprises an anoxic tank and an aerobic tank, and the traditional sewage treatment plant needs to be dug with at least two pits which are respectively used as the anoxic tank and the aerobic tank; the sewage treatment system is not only provided with an A/O tank, but also provided with a regulating tank, a sedimentation tank, a filter tank and the like. The traditional pit digging concrete construction mode has the defects of long construction period, more work types, limited sites, time and labor waste and the like, and has higher construction cost for remote areas such as rural areas or mountain areas and the like, and the traditional sewage treatment system is difficult to popularize.
Although there are modularized sewage treatment systems on the market, such as container type sewage treatment systems, the system integrates various treatment units into a box body with smaller volume, and although the transportation and construction are convenient, the cost is too high, the maintenance is inconvenient, the maintenance cost is high, the volume can not be correspondingly adjusted according to the specific site situation, and in addition, the sewage treatment capacity of the highly integrated treatment system is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an assembled A/O pool, which comprises a tank body, a baffle plate and a reflux pump;
the partition plate is vertically arranged in the tank body to divide the space in the tank body into an anoxic zone and an aerobic zone; the lower end of the partition plate is provided with a communication port for communicating the anoxic zone and the aerobic zone;
The reflux pump is arranged in the aerobic zone, a reflux pipe is connected to the reflux pump, the reflux pipe penetrates through the partition plate and is arranged in the anoxic zone, and the tail end of the reflux pipe is vertically arranged so that the middle part or the lower part of the anoxic zone forms vertical circulation;
The tank body is also provided with a water inlet pipe communicated with the upper end of the anoxic zone, a water outlet pipe communicated with the upper end of the aerobic zone and an aeration pipe; the water inlet pipe is horizontally arranged so that the upper part of the anoxic zone forms horizontal circulation.
Further, the reinforced concrete floor is also included; the bottom plate is provided with a groove, the lower end of the tank body is inserted into the groove, and the groove is filled with waterproof materials; and concrete is poured on the waterproof material for the second time. The tank body is fixedly connected with the tank body through the bottom plate, so that the tank body can be fixedly and firmly fixed; because the waterproof material is arranged in the groove, the waterproof effect is better.
Further, the tank body and the partition plate are both cylindrical, and the groove is annular.
Further, the tank body is an enamel tank.
Further, the upper end of the aerobic zone is also provided with an annular water outlet weir groove communicated with the aerobic zone; the water outlet pipe is communicated with the water outlet weir groove.
According to the assembled A/O pool provided by the invention, through the action of the tank body and the partition plate, the anoxic zone and the aerobic zone are arranged in one tank body, the whole A/O pool can be directly produced and assembled in a workshop or assembled on site, compared with the existing concrete A/O pool, the construction period is shortened, and the assembled A/O pool is simple to install and low in cost; in addition, the upper part of the anoxic zone is provided with horizontal circulation, and the middle part or the lower part is provided with vertical circulation; the whole A/O pool has better reaction effect.
In addition, the invention also provides an assembled sewage treatment system provided with the assembled A/O tank, and the sewage treatment system comprises an adjusting tank, the assembled A/O tank, a sedimentation tank and a filter which are connected in sequence through pipelines.
Further, the filter comprises a housing, a filtration system, and a flocculation device; the shell is provided with a raw water inlet and a filtrate outlet, and the filtering system and the flocculation device are both arranged in the shell; the raw water inlet, the flocculation device, the filtration system and the filtrate outlet are sequentially communicated.
Further, the flocculation device comprises a flocculation tray and a flocculant inlet communicated with the flocculation tray; the raw water inlet is communicated with the flocculation tray through a pipeline; a flocculation outlet is also arranged on the flocculation tray; the flocculation outlet is communicated with a filtration system.
Further, the filtering system comprises a flow guide pipe, a sand guide pipe, a water distributor, a sand guide hopper, an air lift pump, a sand washer and a sand bed;
the sand bed is arranged in the shell, the upper end of the flow guide pipe is communicated with the flocculation outlet, and the lower end of the flow guide pipe is provided with a water distributor; the sand guide hopper is cone-shaped and is arranged at the lower end of the water distributor; the lower end of the sand guide pipe is arranged at the lower end of the sand guide hopper, the lower end of the sand guide pipe is connected with the air lift pump, the upper end of the sand guide pipe extends out of the upper end of the sand bed, and the upper end of the sand guide pipe is connected with a sand washer; the upper end of the sand washer is provided with a waste liquid outlet, and the lower end of the sand washer is provided with a sand outlet; and a flushing fluid outlet is further formed in the shell and is communicated with a waste liquid outlet of the sand washer through a pipeline.
Further, a baffle plate or a stirring device for turbulent flow is arranged in the flocculation tray.
The adjusting tank, the assembly type A/O tank, the sedimentation tank and the filter of the main component of the assembled sewage treatment system can be prepared in advance in factories, only the assembly or the assembly is needed on a construction site, the construction period is greatly shortened, the construction cost is saved, compared with the existing centralized modularized treatment system, the water treatment effect is better, the adjusting tank, the assembly type A/O tank and the like can be adjusted in size and shape according to the needs, and the site applicability is strong. Of course, for cost reasons, the A/O tanks and filters may be selected as fabricated, and the conditioning tanks and settling tanks may be constructed of conventional concrete. The flocculation device is additionally arranged in the filter, so that the whole filter has good filtering effect including micro flocculation under the condition of unchanged volume, flocculation aging is controllable, and the filtering effect is better; in addition, the whole filter is convenient to install and transport.
Drawings
FIG. 1 is a schematic diagram of an assembled sewage treatment system of the present invention;
FIG. 2 is a schematic top view of the fabricated A/O pool of FIG. 1;
FIG. 3 is a schematic cross-sectional front view of the fabricated A/O pool of FIG. 2 after installation;
FIG. 4 is a schematic view of a filter according to the present invention;
FIG. 5 is a schematic view of the water flow through the filter of FIG. 4;
FIG. 6 is a schematic view of sand flow through the filter of FIG. 4;
FIG. 7 is a schematic perspective view of the flocculation basin of FIG. 4;
FIG. 8 is an enlarged partial cross-sectional schematic view of the flocculation basin of FIG. 4;
FIG. 9 is a schematic top cross-sectional view of FIG. 7, wherein arrows indicate water flow directions;
wherein, 1, an adjusting pool; 2. a filter; 21. a housing; 22. a raw water inlet; 23. a filtrate outlet; 24. a flocculation tray; 25. a flocculant inlet; 26. a flocculation outlet; 27. a flow guiding pipe; 28. a sand guide pipe; 29. a water distributor; 210. a sand guide hopper; 211. an air lift pump; 212. a sand washer; 213. a sand bed; 214. a rinse liquid outlet; 215. a baffle; 216. a water purification area; 3. a sedimentation tank;
4. A fabricated A/O pool; 41. a tank body; 42. a partition plate; 43. a reflux pump; 44. an anoxic zone; 45. an aerobic zone; 46. a communication port; 47. a return pipe; 48. a bottom plate; 49. a groove; 410. a water inlet pipe; 411. a water outlet pipe; 412. an aeration pipe; 413. and a water outlet weir groove.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 9, the invention provides an assembled sewage treatment system, which comprises an adjusting tank 1, an assembled a/O tank 4, a sedimentation tank 3 and a filter 2 which are connected in sequence through pipelines;
the assembled A/O pool provided by the invention comprises a tank body 41, a baffle plate 42 and a reflux pump 43;
The baffle plate 42 is vertically arranged in the tank body 41 to divide the internal space of the tank body 41 into an anoxic zone 44 and an aerobic zone 45; the lower end of the partition plate 42 is provided with a communication port 46 for communicating the anoxic zone 44 and the aerobic zone 45;
The reflux pump 43 is arranged in the aerobic zone 45, the reflux pump 43 is connected with a reflux pipe 47, the reflux pipe 47 passes through the baffle plate 42 and is arranged in the anoxic zone 44, and the tail end of the reflux pipe 47 is vertically arranged so that the middle or lower part of the anoxic zone 44 forms a vertical circulation (shown by a vertical annular arrow in fig. 3);
The tank body 41 is also provided with a water inlet pipe 410 communicated with the upper end of the anoxic zone 44, a water outlet pipe 411 and an aeration pipe 412 communicated with the upper end of the aerobic zone 45; the water inlet pipe 410 is horizontally disposed so that a horizontal circulation flow (indicated by a horizontal circular arrow in fig. 3) is formed at the upper portion of the anoxic zone 44.
Also included is a reinforced concrete floor 48 (or concrete floor 48); the bottom plate 48 is provided with a groove 49, the lower end of the tank 41 is inserted into the groove 49, and the groove 49 is filled with waterproof materials; and concrete is poured on the waterproof material for the second time. The tank body 41 can be firmly fixed by connecting and fixing the tank body 41 through the bottom plate 48; the waterproof effect is better because the waterproof material is arranged in the groove 49.
Both the tank 41 and the partition 42 are cylindrical, and the recess 49 is annular. The can 41 is preferably an enamel can. The upper end of the aerobic zone 45 is also provided with an annular water outlet weir groove 413 communicated with the aerobic zone; the water outlet pipe 411 communicates with the water outlet weir groove 413.
The portion of the water inlet pipe 410 located in the anoxic zone 44 is horizontally disposed or arranged in a tangential direction of the anoxic zone 44 (circular shape) so that a horizontal circulation is formed at the upper part of the anoxic zone 44.
The end of the return pipe 47 is vertically arranged, preferably the end of the return pipe 47 is vertically arranged upwards and extends from the lower part of the anoxic zone 44 to the middle part of the anoxic zone 44, and the return pump 43 is operated to form a vertical circulation in the middle or lower part of the anoxic zone 44.
The tank 41 and the partition plate 42 can be assembled and transported to a construction site of a sewage treatment system after being directly produced in a factory, or can be assembled on site after the tank 41 and the partition plate 42 are directly produced; likewise, the filter may be used in this manner; of course, the condition allows the adjusting tank and the sedimentation tank to be assembled, but for cost consideration, the adjusting tank and the sedimentation tank in the traditional mode can be directly adopted under the condition of allowing construction conditions on a construction site; the sedimentation tank is preferably a radial sedimentation tank. In addition, when the sewage treatment system is used as a sewage treatment plant, a corresponding management room can be provided, and the management room can be a concrete building or an assembled color steel plate house structure; in addition, the sewage treatment system is also matched with conventional equipment such as a tubular sterilizer, a pasteurization tank, a sludge storage tank, a sludge dewatering room and the like, wherein the matched equipment can adopt a factory production mode, but the main material of the equipment or the tank is preferably an enamel tank, and the matched equipment can also adopt concrete construction on site.
The filter of the assembled sewage treatment system comprises a shell 21, a filtering system and a flocculation device; the shell 21 is provided with a raw water inlet 22 and a filtrate outlet 23, and the filtering system and the flocculation device are arranged in the shell 21; the raw water inlet 22, the flocculation device, the filtration system and the filtrate outlet 23 are in communication in this order.
The flocculation device comprises a flocculation tray 24 and a flocculant inlet 25 communicated with the flocculation tray 24; the raw water inlet 22 is communicated with the flocculation tray 24 through a pipeline; the flocculation tray 24 is also provided with a flocculation outlet 26; flocculation outlet 26 is in communication with the filtration system.
The filtering system of the embodiment comprises a flow guide pipe 27, a sand guide pipe 28, a water distributor 29, a sand guide hopper 210, an air lift pump 211, a sand washer 212 and a sand bed 213;
The sand bed 213 (active sand) is arranged in the shell 21, the upper end of the flow guide pipe 27 is communicated with the flocculation outlet 26, and the lower end of the flow guide pipe 27 is provided with a water distributor 29; the sand guide 210 is cone-shaped and is arranged at the lower end of the water distributor 29; the lower end of the sand guide pipe 28 is arranged at the lower end of the sand guide hopper 210, the lower end of the sand guide pipe 28 is connected with the air lift pump 211, the upper end of the sand guide pipe 28 extends out of the upper end of the sand bed 213, and the upper end of the sand guide pipe 28 is connected with the sand washer 212; the upper end of the sand washer 212 is provided with a waste liquid outlet, and the lower end of the sand washer 212 is provided with a sand outlet; the shell 21 is also provided with a flushing fluid outlet 214, and the flushing fluid outlet 214 is communicated with a waste liquid outlet of the sand washer 212 through a pipeline.
It should be noted that the filtration system of the present invention may be not only an activated sand filtration system, but also other types of filtration systems.
In addition, a baffle 215 or stirring device for turbulent flow is also provided in the flocculation tray 24. There are a plurality of baffles 215, and the plurality of baffles 215 are vertically arranged in the flocculation tray 24. By setting the size of the flocculation tray 24 and setting the position and angle of the baffle 215, the flow time or speed of water in the flocculation tray 24 can be controlled, so that the flocculation reaction time is controllable; of course, the baffle 215 may be positioned and angled to provide turbulence to make the flocculation reaction more efficient.
The sand bed 213 is arranged at the lower part of the shell 21, and a water purifying area 216 for containing filtrate is arranged at the upper part of the shell 21; flocculation basin 24 is positioned in water purification zone 216.
A sand guide 28 passes through and is sealingly connected to flocculation basin 24. The flocculation tray 24 may be provided with a sealed cylindrical partition directly in the middle, through which the sand guide 28 passes.
The flow guide pipe 27 is sleeved outside the sand guide pipe 28, and the inner wall of the flow guide pipe 27 is spaced from the outer wall of the sand guide pipe 28.
The lower end of the housing 21 is in an inverted cone shape, and the air lift pump 211 is provided at the lower end of the housing 21.
A flocculant regulating valve is arranged at the flocculant inlet 25. The amount of flocculant entering flocculation basin 24 may be regulated by a regulating valve.
When the raw water enters the regulating tank, the raw water enters the upper end of the anoxic zone 44 through a water inlet pipe 410 of the assembled A/O tank, enters the aerobic zone 45 from a communication port 46 at the lower end of the anoxic zone 44, flows out to the sedimentation tank from a water outlet pipe 411 at the upper end of the aerobic zone 45, and the water in the sedimentation tank enters the filter again; the filters shown in fig. 1 have two groups. When the water in the sedimentation tank enters the shell 21 through the raw water inlet 22, the water firstly enters the flocculation tray 24, and the water reacts with the flocculant because the flocculant is arranged in the flocculation tray 24, the reaction time is preferably 1-3 minutes, and the reaction time can be controlled by the flow rate of the water flowing through the flocculation tray 24; when the reacted water enters the guide pipe 27 through the flocculation outlet 26, finally enters the water distributor 29, and flows out from the tail end of the water distributor 29 into the sand bed 213; the active sand of the sand bed 213 at the water distributor 29 is dirty sand, the sand bed 213 gradually gets cleaner upwards, water overflows to the upper part of the sand bed 213 after passing through the sand bed 213, then exists in the water purifying area 216, and finally flows out through the filtrate outlet 23 at the upper end of the shell 21; and the dirty sand is lifted into the sand guide pipe 28 under the action of the air lift pump 211 and enters the sand washer 212 at the upper end of the sand guide pipe 28, the dirty sand is cleaned under the action of the sand washer 212, the sewage (waste liquid) in the dirty sand is discharged through the waste liquid outlet and is discharged out of the shell 21 through the flushing liquid outlet 214, and the whole filtering system completes filtering. The filtering device can realize 24-hour continuous filtration, and compared with the existing active sand filter, the volume is unchanged, and the filtering effect is better.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. The assembled sewage treatment system is characterized by comprising an adjusting tank, an assembled A/O tank, a sedimentation tank and a filter which are sequentially connected through pipelines, wherein the filter comprises a shell, a filtering system and a flocculation device; the shell is provided with a raw water inlet and a filtrate outlet, and the filtering system and the flocculation device are both arranged in the shell; the raw water inlet, the flocculation device, the filtration system and the filtrate outlet are sequentially communicated, and the flocculation device comprises a flocculation disc and a flocculant inlet communicated with the flocculation disc; the raw water inlet is communicated with the flocculation tray through a pipeline; a flocculation outlet is also arranged on the flocculation tray; the flocculation outlet is communicated with the filtering system; the filtering system comprises a flow guide pipe, a sand guide pipe, a water distributor, a sand guide hopper, an air lift pump, a sand washer and a sand bed; the sand bed is arranged in the shell, the upper end of the flow guide pipe is communicated with the flocculation outlet, and the lower end of the flow guide pipe is provided with a water distributor; the sand guide hopper is cone-shaped and is arranged at the lower end of the water distributor; the lower end of the sand guide pipe is arranged at the lower end of the sand guide hopper, the lower end of the sand guide pipe is connected with the air lift pump, the upper end of the sand guide pipe extends out of the upper end of the sand bed, and the upper end of the sand guide pipe is connected with a sand washer; the upper end of the sand washer is provided with a waste liquid outlet, and the lower end of the sand washer is provided with a sand outlet; the shell is also provided with a flushing fluid outlet which is communicated with a waste liquid outlet of the sand washer through a pipeline; baffle plates for turbulent flow are arranged in the flocculation tray, a plurality of baffle plates are arranged in the flocculation tray vertically; the assembled A/O pool comprises a tank body, a baffle plate and a reflux pump;
The partition plate is cylindrical and is vertically arranged in the center of the tank body to divide the space inside the tank body into a central anoxic zone and a peripheral aerobic zone; the lower end of the partition plate is provided with a communication port for communicating the anoxic zone and the aerobic zone;
The reflux pump is arranged in the aerobic zone, a reflux pipe is connected to the reflux pump, the reflux pipe penetrates through the partition plate and is arranged in the anoxic zone, and the tail end of the reflux pipe is vertically arranged upwards so that the middle part or the lower part of the anoxic zone forms vertical circulation;
The tank body is also provided with a water inlet pipe communicated with the upper end of the anoxic zone, a water outlet pipe communicated with the upper end of the aerobic zone and an aeration pipe; the water inlet pipe is arranged along the tangential direction of the anoxic zone so as to form horizontal circulation on the upper part of the anoxic zone.
2. The fabricated wastewater treatment system with fabricated a/O pool of claim 1, further comprising a reinforced concrete floor; the bottom plate is provided with a groove, the lower end of the tank body is inserted into the groove, and the groove is filled with waterproof materials; and concrete is poured on the waterproof material for the second time.
3. The fabricated wastewater treatment system with the fabricated a/O tank of claim 2, wherein the tank is cylindrical and the recess is annular.
4. The fabricated wastewater treatment system with fabricated a/O tank of claim 1, wherein the tank is an enamel tank.
5. The assembled sewage treatment system provided with the assembled A/O pool, as claimed in claim 1, wherein the upper end of the aerobic zone is also provided with an annular water outlet weir groove communicated with the aerobic zone; the water outlet pipe is communicated with the water outlet weir groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264411.6A CN109179908B (en) | 2018-10-29 | 2018-10-29 | Assembled A/O pond and assembled sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264411.6A CN109179908B (en) | 2018-10-29 | 2018-10-29 | Assembled A/O pond and assembled sewage treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109179908A CN109179908A (en) | 2019-01-11 |
| CN109179908B true CN109179908B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811264411.6A Active CN109179908B (en) | 2018-10-29 | 2018-10-29 | Assembled A/O pond and assembled sewage treatment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109179908B (en) |
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| KR20100009892U (en) * | 2009-03-31 | 2010-10-08 | 최봉석 | Precasted Prefabricated Reinforced Concrete Sewage Disposal Tank |
| CN201988238U (en) * | 2011-02-26 | 2011-09-28 | 郑传勇 | Sand filtering device of self-cleaning flowing bed |
| CN203715376U (en) * | 2014-01-17 | 2014-07-16 | 安徽锋亚环境技术有限公司 | Assembling stereoscopic A2/O reaction tank for dispersing type sewage treatment in rural area |
| CN106861257A (en) * | 2015-12-14 | 2017-06-20 | 哈尔滨顺芝科技有限公司 | Continuous raw streaming active sand filtration treatment device and filter method |
| CN206255888U (en) * | 2016-10-18 | 2017-06-16 | 中节能博实(湖北)环境工程技术股份有限公司 | Three-dimensional jet-flow aeration sewage-treatment plant |
| CN108249573B (en) * | 2018-04-17 | 2024-04-30 | 青岛沃安环境科技有限公司 | Biological purification tank for sewage treatment |
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206069517U (en) * | 2016-09-27 | 2017-04-05 | 北京伊普国际水务有限公司 | Integrated sewage treating apparatus |
| CN108408973A (en) * | 2018-04-08 | 2018-08-17 | 安徽工程大学 | A kind of tiny flocculation continuous sand filter |
| CN209161774U (en) * | 2018-10-29 | 2019-07-26 | 武汉千瑞泰环境科技有限公司 | The pond assembled A/O and assembled sewage disposal system |
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