CN116573768B - Small rural domestic sewage treatment and purification tank and sewage discharge method thereof - Google Patents
Small rural domestic sewage treatment and purification tank and sewage discharge method thereof Download PDFInfo
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- CN116573768B CN116573768B CN202310675688.2A CN202310675688A CN116573768B CN 116573768 B CN116573768 B CN 116573768B CN 202310675688 A CN202310675688 A CN 202310675688A CN 116573768 B CN116573768 B CN 116573768B
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- 239000010865 sewage Substances 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000000746 purification Methods 0.000 title claims description 18
- 239000010802 sludge Substances 0.000 claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000004062 sedimentation Methods 0.000 claims abstract description 18
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 14
- 210000005056 cell body Anatomy 0.000 claims description 9
- 210000000621 bronchi Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 7
- 238000010992 reflux Methods 0.000 description 7
- 230000029087 digestion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000005273 aeration Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000007865 diluting Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The utility model discloses a small rural domestic sewage treatment purifying tank which comprises a main tank body and a tank cover, wherein the inner cavity of the main tank body is divided into an anaerobic zone, an anoxic zone, an aerobic zone, a sedimentation zone and a clear water zone which are sequentially communicated through a partition board, the tank cover is buckled on the main tank body through a buckle connection, the small rural domestic sewage treatment purifying tank also comprises a plurality of sewage disposal vertical pipes and main sewage Guan Heqi lifting components, the sewage disposal vertical pipes are respectively arranged in the anaerobic zone, the anoxic zone, the aerobic zone and the sedimentation zone, the bottom end of each sewage disposal vertical pipe is provided with a drawing port, and the top end of each sewage disposal vertical pipe is communicated with a main sewage disposal pipe; the main blow-down pipe is longitudinally arranged in the main tank body, one end of the main blow-down pipe is sealed, and the other end of the main blow-down pipe is connected to a sludge pipe hole on the side wall of the tank cover, so that sludge can be discharged out of the tank body; the air stripping component is arranged below the tank cover and can drive the sewage vertical pipe to carry out mud discharging operation. The utility model also discloses a sewage disposal method of the small rural domestic sewage treatment purifying tank. The utility model can automatically maintain and clean the sludge in the purifying tank, saves time and labor and reduces the operation and maintenance cost.
Description
Technical Field
The utility model relates to the technical field of purifying tanks, in particular to a small rural domestic sewage treatment purifying tank and a sewage discharge method thereof.
Background
The purifying tank is a small-sized domestic sewage treatment device and is used for treating dispersed domestic sewage or similar domestic sewage.
The utility model relates to a village and town domestic sewage treatment device, which is characterized in that a purifying tank main body is divided into an anoxic zone, an aerobic zone, a secondary sedimentation tank and a disinfection tank, microporous aeration is arranged in the anoxic zone and the aerobic zone, filling is carried out, and the anoxic, aerobic treatment and post disinfection processes are adopted to ensure that all microorganism indexes reach the standard and are discharged. The utility model discloses a small-size purifying tank sewage treatment device with a gas stripping reflux type, which comprises a purifying tank shell and an air pump, wherein an adjusting primary sedimentation tank, an anaerobic tank, an aerobic tank and a secondary sedimentation tank are sequentially arranged in the purifying tank shell from a water inlet side to a water discharge side, the adjusting primary sedimentation tank, the anaerobic tank, the aerobic tank and the secondary sedimentation tank are sequentially communicated through overflow pipes, an aeration head is arranged in the aerobic tank, a digestion liquid reflux pipe and a sludge reflux pipe are arranged in the purifying tank shell, the secondary sedimentation tank is communicated with the anaerobic tank through the digestion liquid reflux pipe, the secondary sedimentation tank is communicated with the adjusting primary sedimentation tank through the sludge reflux pipe, and the aeration head, the digestion liquid reflux pipe and the sludge reflux pipe are respectively connected with the air pump through hoses. According to the utility model, the air pump is utilized to provide compressed air for the aeration head in the aerobic tank, a fan is not required to be connected, the energy consumption is reduced while the dissolved oxygen in the aerobic zone is ensured, the air pump surplus air is introduced into the digestion liquid return pipe and the sludge return pipe through the hose to realize the air stripping return effect, and the liquid is lifted to realize the return by utilizing the density difference of the liquid inside and outside the return pipe, so that the use of the digestion liquid return pump and the sludge return pump is omitted, and the problem that the water pump is difficult to select due to the fact that the digestion liquid and the sludge return flow of the small-sized purifying tank are too small is avoided.
However, the above-mentioned purification tank device does not have the problem of the discharge cell body of sediment mud involved, and current purification tank device is after long-term operation, often all has the solid sludge impurity that is difficult for degradation that deposits more or less in each cavity region, if not clear up for a long time, accumulated and can occupy great space, influence the activity of microorganism, reduce sewage treatment efficiency. At present, people often adopt a periodic manual cleaning mode, for example, a purifying tank runs for 1-2 years, and professionals can use tank trucks to clean the purifying tank on site. The inspection cover of the purifying tank is opened, and the sludge deposited and accumulated in the purifying tank is pumped out by using the slurry pump pipe of the tank truck, so that the buried purifying tank is cleaned up with great time and labor.
In order to overcome the problems, a small rural domestic sewage treatment purifying tank and a sewage discharge method thereof are needed.
Disclosure of Invention
The utility model aims to provide a small rural domestic sewage treatment purifying tank and a sewage discharge method thereof, which can automatically maintain and clean the sludge in the purifying tank, save time and labor and reduce operation and maintenance cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model discloses a small rural domestic sewage treatment purifying tank, which comprises a main tank body and a tank cover, wherein the inner cavity of the main tank body is divided into an anaerobic zone, an anoxic zone, an aerobic zone, a sedimentation zone and a clear water zone which are sequentially communicated through a partition board, the tank cover is buckled on the main tank body through a buckle connection, the small rural domestic sewage treatment purifying tank also comprises a plurality of sewage disposal risers and main sewage Guan Heqi lifting components, the sewage disposal risers are respectively arranged in the anaerobic zone, the anoxic zone, the aerobic zone and the sedimentation zone, the bottom end of each sewage disposal riser is provided with an extraction port, and the top end of each sewage disposal riser is communicated with a main sewage disposal pipe; the main blow-down pipe is longitudinally arranged in the main tank body, one end of the main blow-down pipe is sealed, and the other end of the main blow-down pipe is connected to a sludge pipe hole on the side wall of the tank cover, so that sludge can be discharged out of the tank body; the air stripping component is arranged below the tank cover and can drive the sewage vertical pipe to carry out mud discharging operation.
Further, the sewage draining vertical pipe specifically adopts a vertically arranged supporting column pipe, the bottom end of the supporting column pipe is abutted against the bottom surface of the inner cavity of the main tank body, and the top end of the supporting column pipe is supported on the bottom surface of the tank cover; and the bottom of the support column pipe is provided with a drain hole, and the top of the support column pipe is communicated with the main drain pipe through a branch pipe.
Further, the bottom wall of the main groove body is provided with a sinking groove at the mounting position of the support column tube, the sinking groove is a truncated cone groove, the inner bottom surface of the truncated cone groove is provided with a positioning strip, and the positioning strip is used for positioning the inner edge of the support column tube; the bottom surface of the groove cover is provided with a support column cover at the installation position of the support column pipe, and the support column cover is sleeved and pressed at the top end of the support column pipe.
Furthermore, the positioning strip is specifically a crisscross batten integrally formed with the bottom wall of the main groove body, and the lengths of the transverse batten and the longitudinal batten of the crisscross batten are matched with the inner diameter of the support column tube; the number of the sewage draining holes is two, and the two sewage draining holes are symmetrically arranged at the bottom of the supporting column pipe and close to the positioning strip.
Further, the air stripping component comprises a main air pipe, a bronchus, an electric control valve and an air outlet head, wherein the air outlet head is arranged at the bottom of the support column pipe and is communicated with the main air pipe through the bronchus, and the main air pipe is communicated with an air source; and the bronchi corresponding to the support column pipes are provided with the individually controlled electric control valves.
Further, the clear water area is internally provided with the support column pipe, the support column pipe is provided with a backwater orifice in the clear water area of the clear water area, and the top of the support column pipe is communicated to the sealing end of the main sewage draining pipe through a branch pipe.
Furthermore, each branch pipe is provided with a one-way valve which can only discharge to the main blow-down pipe, and one end of the main blow-down pipe, which is close to the sludge pipe hole, is provided with a blow-down one-way valve.
Further, the main drain pipe is longitudinally arranged below the tank cover in the middle, the main drain pipe is obliquely arranged, one end close to the sludge pipe hole is lower than the sealing end, and the main drain pipe is fixed on the partition plate of the main tank body through a pipe clamp or a support plate.
Further, the device also comprises a clear water return pipe, wherein the bottom end of the vertical pipe section of the clear water return pipe is inserted into a clear water area of the clear water area, the water outlet of the clear water return pipe is arranged above the anaerobic area, and the clear water return pipe is driven by the gas stripping component.
The utility model also discloses a sewage disposal method of the small rural domestic sewage treatment purifying tank, which is applied to the small rural domestic sewage treatment purifying tank of any one of the above, wherein sewage disposal risers are arranged in each region where sludge is deposited and accumulated, the tops of the sewage disposal risers are summarized to a main sewage disposal pipe, and the nondegradable sludge in each region can be discharged in sequence by independently controlling the work of gas stripping gas heads in each sewage disposal riser; the sludge discharged by the main sewage pipe is led out by the sewage epitaxial pipe to a vertical shaft beside the purifying tank equipment, and the vertical shaft is used for placing a sewage bucket to receive the sludge.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the small rural domestic sewage treatment purifying tank, the sewage vertical pipes are arranged in the functional areas needing to be regularly drained, the precipitated nondegradable sludge is uniformly discharged through the main sewage pipes at the top, the sewage is drained in a gas stripping mode, a sewage pump is not required to be arranged independently, and the equipment cost is saved. Meanwhile, compared with a pump pipe extraction mode under the inspection cover, the method avoids collision damage of the pump pipe, the packing frame in the tank body and the filter plate, the inspection cover does not need to be opened in the whole maintenance process, the cost of adopting the tank truck is saved, and the labor is saved.
In addition, the supporting column tube not only serves as a pressure-bearing member for supporting the main groove body and the groove cover, so that the pressure-bearing capacity is improved; the device also serves as a pipeline for conveying sludge, so that the inner cavity space of the tank body can be greatly saved, and the volume of the original functional area is hardly influenced; through setting up the subsidence groove of circular truncated cone recess shape at the main tank body diapire, the subsidence groove is favorable to concentrating the drainage of taking away as the minimum space is convenient for gathering mud, and the subsidence groove also can be regarded as the supporting leg of cell body simultaneously, leveling whole equipment when being convenient for install. The positioning strip is particularly used for positioning the support column pipe by adopting the crisscross battens with the integrally formed bottom wall, so that the positioning accuracy is high, and the blocking influence on the sewage discharge orifice can be reduced. Through setting up the centralized air stripping subassembly of dispersion, the head of giving vent to anger in each support post pipe can be controlled alone and work, and then guarantees to carry out the blowdown of each support post pipe in proper order, avoids the air supply that the mutual influence caused not enough. Compared with slurry pump conveying, the gas stripping conveying mode is adopted, so that the equipment cost is obviously reduced. By also providing a support column in the clear water zone, there is no return sludge, as there is little sludge in this zone. The support column pipe and the branch pipe for returning clear water are arranged, so that the main sewage drain pipe can be flushed last, and the blockage caused by accumulated sludge in the main sewage drain pipe is avoided. The reasonable arrangement of the support column tube can support the trough cover with enough strength to bear the pressure of the covering soil. By arranging the one-way valves on the branch pipes, the sludge can be prevented from being refilled into other functional areas when sewage is discharged and conveyed by other branch pipes; the sewage disposal check valve is arranged on the end head of the main sewage disposal pipe, so that the external water can be prevented from recharging the tank body. Through the main blow off pipe that the slope set up, can guarantee the cleaning water of clear water district's support pillar pipe output follow seal end is the high-end input promptly, can wash the washing to whole main blow off pipe. Through clear water back flow's setting, can carry the clean water in the clean water district of clean water district to anaerobic zone carry out the dilution of mud, the clean water falls to anaerobic zone's bottom mud from the eminence, plays impact stirring and diluting's effect, the gaseous transport of mud of being convenient for.
According to the sewage disposal method for the small rural domestic sewage treatment purifying tank, the sludge discharge sequence of each functional area is reasonably set, the area with large sludge amount is conveyed firstly, the area with small sludge amount is conveyed, and finally the main sewage disposal pipe is washed and cleaned, so that the main sewage disposal pipe can be protected, and the blockage condition of the main sewage disposal pipe is avoided. Through setting up shaft and effluent water drum, and the slope sets up blowdown epitaxial tube, utilizes mud dead weight to discharge, has reduced equipment input cost.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a schematic diagram of a three-dimensional structure of a small rural domestic sewage treatment purification tank;
FIG. 2 is a schematic diagram of a front view structure of a small rural domestic sewage treatment purifying tank;
FIG. 3 is a schematic diagram of a three-dimensional structure of a small rural domestic sewage treatment purification tank with a tank cover removed;
FIG. 4 is a schematic top view of the main tank of the present utility model;
FIG. 5 is a schematic top view of the main tank and the sewage disposal system of the present utility model;
FIG. 6 is a schematic cross-sectional side view of the small rural domestic sewage treatment purification tank of the present utility model in the clear water zone;
fig. 7 is a schematic diagram of the application of the sewage disposal method of the small rural domestic sewage treatment purification tank of the utility model.
Reference numerals illustrate: 1. a main tank body; 101. a sinking groove; 102. a positioning strip; 103. a purified water outlet; 2. a slot cover; 201. a sewage inlet; 202. a sludge pipe hole; 203. a support column cover; 3. an anaerobic zone; 4. an anoxic zone; 5. an aerobic zone; 6. a precipitation zone; 7. a clear water zone; 8. a support pillar; 801. a blow-down orifice; 802. a backwater orifice; 803. upper blocking; 9. a branch pipe; 10. a main drain pipe; 11. a sewage disposal one-way valve; 12. a stripping assembly; 121. a main air pipe; 122. an electric control air valve; 123. an air outlet head; 13. clear water return pipe; 14. a buckle; 15. a sewage discharge epitaxial tube; 16. a shaft; 17. a sewage bucket; 18. and (3) a well cover.
Detailed Description
The core of the utility model is to provide a small rural domestic sewage treatment purifying tank and a sewage discharge method thereof, which can automatically maintain and clean the sludge in the purifying tank, save time and labor and reduce operation and maintenance cost.
The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to 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 utility model.
Referring to the drawings, FIG. 1 is a schematic perspective view of a small rural domestic sewage treatment purification tank of the present utility model; FIG. 2 is a schematic diagram of a front view structure of a small rural domestic sewage treatment purifying tank; FIG. 3 is a schematic diagram of a three-dimensional structure of a small rural domestic sewage treatment purification tank with a tank cover removed; FIG. 4 is a schematic top view of the main tank of the present utility model; FIG. 5 is a schematic top view of the main tank and the sewage disposal system of the present utility model; FIG. 6 is a schematic cross-sectional side view of the small rural domestic sewage treatment purification tank of the present utility model in the clear water zone; fig. 7 is a schematic diagram of the application of the sewage disposal method of the small rural domestic sewage treatment purification tank of the utility model.
In a specific embodiment, as shown in fig. 1-6, a small rural domestic sewage treatment purifying tank comprises a main tank body 1 and a tank cover 2, wherein the inner cavity of the main tank body 1 is divided into an anaerobic zone 3, an anoxic zone 4, an aerobic zone 5, a sedimentation zone 6 and a clear water zone 7 which are sequentially communicated through a partition plate, the bottom of the aerobic zone 5 is provided with an aerator pipe, the volume of the zone is maximum, the anaerobic zone 3, the anoxic zone 4 and the aerobic zone 5 are all provided with microorganism fillers, a sewage inlet 201 is formed in the tank cover 2 at the top of the anaerobic zone 3, and a clear water outlet 103 is formed in the top of the side wall of the main tank body 1 in the clear water zone 7. The top of the main tank body 1 is provided with a circle of flange edges, the bottom of the tank cover 2 is provided with flange edges consistent with the top of the main tank body 1, and the tank cover 2 is connected and sealed and buckled on the main tank body 1 through a buckle 14. Compared with the sewage purifying tank in the prior art, the small rural domestic sewage treatment purifying tank is mainly innovative in that the small rural domestic sewage treatment purifying tank further comprises a plurality of sewage vertical pipes, a main sewage pipe 10 and a gas stripping assembly 12, wherein the sewage vertical pipes are respectively arranged in an anaerobic zone 3, an anoxic zone 4, an aerobic zone 5 and a sedimentation zone 6 which need to be regularly discharged. The drain riser bottom is provided with the extraction mouth, drain riser top communicates to main drain 10, drain riser can insert the bottom of each functional area to one side. The main sewage drain pipe 10 is longitudinally arranged in the main tank body 1, one end of the main sewage drain pipe is sealed, the other end of the main sewage drain pipe is connected to a sludge pipe hole 202 on the side wall of the tank cover 2, and sludge is discharged out of the tank body through the sludge pipe hole 202. The air stripping assembly 12 is arranged below the tank cover 2, and drives the sewage vertical pipe to carry out mud discharging operation in an air stripping mode.
By arranging the sewage vertical pipes in each functional area needing to regularly drain sewage, the main sewage pipe 10 at the top uniformly discharges the precipitated nondegradable sludge, and the air stripping type sewage is adopted, so that a sewage pump is not required to be independently arranged, and the equipment cost is saved. Meanwhile, compared with a pump pipe extraction mode under the inspection cover, the method avoids collision damage of the pump pipe, the packing frame in the tank body and the filter plate, the inspection cover does not need to be opened in the whole maintenance process, the cost of adopting the tank truck is saved, and the labor is saved.
In a specific embodiment of the present utility model, as shown in fig. 3 to 6, the sewage vertical pipe specifically adopts a vertically arranged support column pipe 8, the bottom end of the support column pipe 8 is abutted against the bottom surface of the inner cavity of the main tank body 1, and the top end of the support column pipe 8 is supported on the bottom surface of the tank cover 2. The support column tube 8 is made of high-quality plastic tube or glass fiber reinforced plastic tube. A drain hole 801 is formed in the bottom of the support column pipe 8, and the top of the support column pipe 8 is communicated with a main drain pipe 10 through a branch pipe 9.
Specifically, as shown in fig. 2, 3 and 6, a sinking groove 101 is formed in the bottom wall of the main tank body 1 at the mounting position of the support column tube 8, the sinking groove 101 is a truncated cone groove, and a positioning strip 102 is arranged on the inner bottom surface of the truncated cone groove, and the positioning strip 102 positions the inner edge of the support column tube 8. The position of the sinking groove 101 is used as a supporting leg of the main groove body 1, and the groove wall of the part needs to be thickened and reinforced. The bottom surface of the groove cover 2 is provided with a supporting column cover 203 at the mounting position of the supporting column pipe 8, and the supporting column cover 203 is sleeved and pressed on the top end of the supporting column pipe 8.
Specifically, as shown in fig. 6, the top end of the support column 8 is plugged with an upper plug 803, and the upper plug 803 seals the top opening of the support column 8.
Specifically, as shown in fig. 4 and 6, the positioning strip 102 specifically adopts a crisscross batten integrally formed with the bottom wall of the main tank body 1, and the lengths of the transverse batten and the longitudinal batten of the crisscross batten are adapted to the inner diameter of the support pillar 8, that is, the crisscross batten is internally supported in the inner hole at the bottom end of the support pillar 8. The number of the drain holes 801 is two, and the drain holes 801 are symmetrically arranged at the bottom of the support column tube 8 and close to the positioning strip 102, and the shape of the drain holes 801 is rectangular strip holes.
The supporting column tube 8 not only serves as a pressure bearing member for supporting the main groove body 1 and the groove cover 2, but also improves the pressure bearing capacity; the device also serves as a pipeline for conveying sludge, so that the inner cavity space of the tank body can be greatly saved, and the volume of the original functional area is hardly influenced; through setting up the subsidence groove 101 of circular truncated cone recess shape at main cell body 1 diapire, the subsidence groove 101 is favorable to concentrating the drainage of taking away as the minimum space is convenient for gathering mud, and subsidence groove 101 also can be as the supporting leg of cell body simultaneously, leveling whole equipment when being convenient for install. The positioning strip 102 specifically adopts the crisscross battens with integrally formed bottom walls to position and support the column pipe 8, so that the positioning accuracy is high, and meanwhile, the blocking influence on the drain hole 801 can be reduced.
In one embodiment of the present utility model, as shown in fig. 5, the stripping assembly 12 includes a main air pipe 121, a bronchus, an electric control valve 122 and an air outlet head 123, the air outlet head 123 is disposed at the bottom of the support column pipe 8, the air outlet head 123 is communicated to the main air pipe 121 through the bronchus, the bronchus passes through the pipe wall of the support column pipe 8 in a sealing manner, the main air pipe 121 is communicated to an air source through an air pipe quick connector on the side wall of the tank cover 2, and the air source can be an air pump or a compressed air storage bottle. Each support column tube 8 is provided with an individually controlled electrically controlled valve 122 on the corresponding bronchus, i.e. each electrically controlled valve 122 can be opened or closed individually under the control of the device controller.
The principle of air stripping conveying is that pressurized air is input into the bottom of a lift tube through an air tube, a gas-liquid sludge mixture with the density smaller than that of the mixed sludge outside the tube is formed in the lift tube, the liquid level of the gas-liquid sludge mixture with the relative density smaller than that of the mixed sludge outside the tube is higher than that of the mixed sludge outside the tube according to the liquid balance principle, and the mixed sludge outside the tube continuously flows in from the bottom of the lift tube under the combined action of the suction force formed by rising of the gas-liquid sludge mixture inside the tube and the mixed sludge outside the tube, so that air stripping conveying is realized.
Through setting up the centralized air stripping subassembly 12 of dispersion, the head 123 of giving vent to anger in each support pillar 8 can be controlled alone and work, and then guarantees to carry out the blowdown of each support pillar 8 in proper order, avoids the air supply that the mutual influence caused not enough. Compared with slurry pump conveying, the gas stripping conveying mode is adopted, so that the equipment cost is obviously reduced.
In a specific embodiment of the present utility model, as shown in fig. 3 to 6, a support pillar 8 is also disposed in the clean water area 7, the support pillar 8 is provided with a water return orifice 802 in the clean water area 7, and the top of the support pillar 8 is also communicated to the sealing end of the main sewage drain 10 through a branch pipe 9. The support column 8 is also individually controlled by a bypass electrically controlled valve 122 of the stripping assembly 12.
Specifically, the number of the support column pipes 8 is 8, wherein one anaerobic zone 3, one anoxic zone 4, one sedimentation zone 6 and one clear water zone 7 are respectively arranged, and the cross section area of the aerobic zone 5 is large and four.
By also providing a support column 8 in the clean water zone 7, there is no return sludge, since there is little sludge in this zone. The support column pipe 8 and the branch pipe 9 for returning clear water are arranged, so that the main sewage drain pipe 10 can be washed finally, and the blockage caused by accumulated sludge in the main sewage drain pipe 10 is avoided. The reasonable arrangement of the supporting column pipes 8 can support the trough cover 2 with enough strength to bear the pressure of the covering soil.
In a specific embodiment of the present utility model, as shown in fig. 5, each branch pipe 9 is provided with a check valve, where the check valve ensures that only the main drain pipe 10 can be discharged and cannot flow back, and one end of the main drain pipe 10 near the sludge pipe hole 202 is provided with a drain check valve 11.
Specifically, as shown in fig. 5 to 7, the main drain pipe 10 is disposed longitudinally centrally below the tank cover 2, the main drain pipe 10 is disposed obliquely, one end close to the sludge pipe hole 202 is lower than the sealing end, and the main drain pipe 10 is fixed to the partition plate of the main tank body 1 by pipe clamps or support plates.
By installing the one-way valve on each branch pipe 9, the sludge can be prevented from recharging to other functional areas when sewage is discharged and conveyed by other branches; the drain check valve 11 is arranged on the end head of the main drain pipe 10, so that the external water can be prevented from recharging the tank body. Through the main blow off pipe 10 that inclines to set up, can guarantee the washing water of the support pillar 8 output of clear water district 7 follow seal end is high-end input, can wash the washing to whole main blow off pipe 10.
In a specific embodiment of the present utility model, as shown in fig. 5, the small rural domestic sewage treatment purifying tank of the present utility model further comprises a clear water return pipe 13, the bottom end of the vertical pipe section of the clear water return pipe 13 is inserted into the water purifying area of the clear water area 7, the water outlet of the clear water return pipe 13 is arranged above the anaerobic area 3, and the clear water return pipe 13 is driven by the air stripping component 12.
Because anaerobic zone 3 is provided with the pipeline of intercommunication sewage import 201, and anaerobic zone 3 is the first region of accepting sewage, and often anaerobic zone 3 deposit can not degrade mud the most, through clear water back flow 13's setting, can carry the clean water of the clean water district of clean water district 7 to anaerobic zone 3 carry out the dilution of mud, and clean water falls to anaerobic zone 3's bottom mud from the eminence, plays impact stirring and diluting's effect, the gaseous transportation of mud of being convenient for.
The utility model also discloses a sewage disposal method of the small rural domestic sewage treatment purifying tank, which is applied to the small rural domestic sewage treatment purifying tank in any specific embodiment, wherein sewage disposal risers are arranged in each region where sludge is deposited and accumulated, the tops of the sewage risers are summarized to the main sewage pipes 10, and the nondegradable sludge in each region can be discharged in sequence by independently controlling the work of gas stripping gas heads in each sewage riser. The sludge discharged from the main sewage pipe 10 is led out by the sewage epitaxial pipe 15 to a vertical shaft 16 beside the purifying tank equipment, and the vertical shaft 16 is used for placing a sewage bucket 17 to receive the sludge. The sewer piping 17 may be lifted from the shaft 16 by means of ropes, and after dumping, the sludge is lowered again.
The utility model relates to a sewage disposal method of a small rural domestic sewage treatment purifying tank, which specifically comprises the following steps:
s1, sewage is discharged in a sludge concentration area: firstly, a supporting column pipe 8 in an anaerobic zone 3 is used for carrying out sewage disposal, a corresponding electric control valve 122 is controlled to be opened, an inner air outlet head 123 of the electric control valve works, and sediment sludge at the bottom of the anaerobic zone 3 is discharged through the supporting column pipe 8, a branch pipe 9 and a main sewage disposal pipe 10; then the sewage disposal of the anoxic zone 4 and the sedimentation zone 6 is sequentially carried out, the operation time of the air stripping sewage disposal of each zone is controlled, and meanwhile, the condition that the sewage bucket 17 in the vertical shaft 16 receives the sludge is required to be observed.
S2, carrying out sewage disposal in the area 5 of the aerobic zone: the bottom area of the aerobic zone 5 is larger, and the actual sediment sludge is less due to the action of the aeration pipe disk, and the four support column pipes 8 can carry out gas stripping and pollution discharge at the same time, so that the set time is stopped.
S3, cleaning the main blow-down pipe 10: and S2, after the end of the step S2, starting an air outlet head 123 in the support column pipe 8 of the clear water area 7, enabling clear water to enter the support column pipe 8 from the water return orifice 802, lifting air to enter a higher sealing end of the main sewage drain pipe 10, namely, high-end input, and flushing and cleaning the whole main sewage drain pipe 10.
S4, sludge collection treatment: a sewage bucket 17 which can be lifted is placed in the vertical shaft 16, the sewage bucket 17 receives the sludge output from the sewage discharge epitaxial pipe 15, the well cover 18 is opened, and the sewage bucket 17 is lifted out for centralized treatment.
Specifically, in step S1, if it is observed that the sludge output from the anaerobic zone 3 is dense and the amount thereof is small, the clear water return pipe 13 needs to be started to dilute the sludge at the bottom of the anaerobic zone 3 and then discharge the diluted sludge.
Through rationally setting up the mud discharge sequence of each functional area, carry the region that the mud volume is big earlier, carry the region that the mud volume is little again, wash out the washing to main blow off pipe 10 at last, can protect main blow off pipe 10, avoid its jam condition that appears. By arranging the vertical shaft 16 and the sewage bucket 17 and obliquely arranging the sewage discharge epitaxial pipe 15, the self-weight discharge of the sludge is utilized, and the equipment investment cost is reduced.
The small rural domestic sewage treatment purifying tank can be buried underground and applied on the ground, and can also play a role in automatic pollution discharge and maintenance and cleaning cost reduction.
According to the small rural domestic sewage treatment purifying tank, the sewage vertical pipes are arranged in each functional area needing to be regularly drained, the precipitated nondegradable sludge is uniformly discharged through the main sewage pipes 10 at the top, and the sewage is drained in a gas stripping mode, so that a sewage pump is not required to be arranged independently, and the equipment cost is saved. Meanwhile, compared with a pump pipe extraction mode under the inspection cover, the method avoids collision damage of the pump pipe, the packing frame in the tank body and the filter plate, the inspection cover does not need to be opened in the whole maintenance process, the cost of adopting the tank truck is saved, and the labor is saved. In addition, the supporting column pipe 8 serves as a pressure bearing piece for supporting the main groove body 1 and the groove cover 2, so that the pressure bearing capacity is improved; the device also serves as a pipeline for conveying sludge, so that the inner cavity space of the tank body can be greatly saved, and the volume of the original functional area is hardly influenced; through setting up the subsidence groove 101 of circular truncated cone recess shape at main cell body 1 diapire, the subsidence groove 101 is favorable to concentrating the drainage of taking away as the minimum space is convenient for gathering mud, and subsidence groove 101 also can be as the supporting leg of cell body simultaneously, leveling whole equipment when being convenient for install. The positioning strip 102 specifically adopts the crisscross battens with integrally formed bottom walls to position and support the column pipe 8, so that the positioning accuracy is high, and meanwhile, the blocking influence on the drain hole 801 can be reduced. Through setting up the centralized air stripping subassembly 12 of dispersion, the head 123 of giving vent to anger in each support pillar 8 can be controlled alone and work, and then guarantees to carry out the blowdown of each support pillar 8 in proper order, avoids the air supply that the mutual influence caused not enough. Compared with slurry pump conveying, the gas stripping conveying mode is adopted, so that the equipment cost is obviously reduced. By also providing a support column 8 in the clean water zone 7, there is no return sludge, since there is little sludge in this zone. The support column pipe 8 and the branch pipe 9 for returning clear water are arranged, so that the main sewage drain pipe 10 can be washed finally, and the blockage caused by accumulated sludge in the main sewage drain pipe 10 is avoided. The reasonable arrangement of the supporting column pipes 8 can support the trough cover 2 with enough strength to bear the pressure of the covering soil. By installing the one-way valve on each branch pipe 9, the sludge can be prevented from recharging to other functional areas when sewage is discharged and conveyed by other branches; the drain check valve 11 is arranged on the end head of the main drain pipe 10, so that the external water can be prevented from recharging the tank body. Through the main blow off pipe 10 that inclines to set up, can guarantee the washing water of the support pillar 8 output of clear water district 7 follow seal end is high-end input, can wash the washing to whole main blow off pipe 10. Through clear water back flow 13's setting, can carry the clean water of the clean water district of clean water district 7 to anaerobic zone 3 carry out the dilution of mud, the clean water falls to anaerobic zone 3's bottom mud from the eminence, plays impact stirring and diluting's effect, the gaseous transport of mud of being convenient for.
According to the sewage disposal method for the small rural domestic sewage treatment purifying tank, the sludge discharge sequence of each functional area is reasonably set, the area with large sludge amount is conveyed firstly, the area with small sludge amount is conveyed, and finally the main sewage disposal pipe 10 is washed and cleaned, so that the main sewage disposal pipe 10 can be protected, and the blocking condition of the main sewage disposal pipe is avoided. By arranging the vertical shaft 16 and the sewage bucket 17 and obliquely arranging the sewage discharge epitaxial pipe 15, the self-weight discharge of the sludge is utilized, and the equipment investment cost is reduced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. The utility model provides a small-size rural domestic sewage treatment purifying tank, includes main cell body (1) and capping (2), main cell body (1) inner chamber is cut apart into anaerobic zone (3), anoxic zone (4), good oxygen district (5), sedimentation zone (6) and clear water district (7) that communicate in proper order through the baffle, capping (2) are in through buckle (14) connection lock on main cell body (1), its characterized in that: the sewage treatment device further comprises a plurality of sewage treatment risers, a main sewage treatment pipe (10) and a stripping assembly (12), wherein the plurality of sewage treatment risers are respectively arranged in the anaerobic zone (3), the anoxic zone (4), the aerobic zone (5) and the sedimentation zone (6), the bottom end of each sewage treatment riser is provided with a drawing port, and the top end of each sewage treatment riser is communicated with the main sewage treatment pipe (10); the main blow-down pipe (10) is longitudinally arranged in the main tank body (1), one end of the main blow-down pipe is sealed, the other end of the main blow-down pipe is connected to a sludge pipe hole (202) on the side wall of the tank cover (2), and sludge can be discharged out of the tank body; the air stripping assembly (12) is arranged below the tank cover (2) and can drive the sewage vertical pipe to perform mud discharging operation;
the sewage draining vertical pipe specifically adopts a vertically arranged supporting column pipe (8), the bottom end of the supporting column pipe (8) is abutted on the bottom surface of the inner cavity of the main tank body (1), and the top end of the supporting column pipe (8) is supported on the bottom surface of the tank cover (2); a drain hole (801) is formed in the bottom of the support column pipe (8), and the top of the support column pipe (8) is communicated with the main drain pipe (10) through a branch pipe (9);
the bottom wall of the main tank body (1) is provided with a sinking groove (101) at the mounting position of the supporting column pipe (8), the sinking groove (101) is a truncated cone groove, and the position of the sinking groove (101) is also used as a supporting leg of the main tank body (1); a positioning strip (102) is arranged on the inner bottom surface of the truncated cone groove, and the positioning strip (102) is used for positioning the inner edge of the support column tube (8); the bottom surface of the groove cover (2) is provided with a support column cover (203) at the installation position of the support column pipe (8), and the support column cover (203) is sleeved and pressed on the top end of the support column pipe (8);
the air stripping assembly (12) comprises a main air pipe (121), a branch air pipe, an electric control valve (122) and an air outlet head (123), wherein the air outlet head (123) is arranged at the bottom of the support column pipe (8), the air outlet head (123) is communicated to the main air pipe (121) through the branch air pipe, and the main air pipe (121) is communicated to an air source; the bronchi corresponding to the supporting column pipes (8) are provided with the individually controlled electric control valves (122);
the water purifying device is characterized in that the support column pipe (8) is also arranged in the clear water area (7), the water returning hole opening (802) is formed in the clear water area of the clear water area (7) by the support column pipe (8), and the top of the support column pipe (8) is communicated with the sealing end of the main sewage draining pipe (10) through the branch pipe (9).
2. The small rural domestic sewage treatment purification tank as set forth in claim 1, wherein: the positioning strip (102) is specifically a crisscross batten integrally formed with the bottom wall of the main groove body (1), and the length of a transverse batten and a longitudinal batten of the crisscross batten are matched with the inner diameter of the support column tube (8); the number of the sewage draining holes (801) is two, and the two sewage draining holes are symmetrically arranged at the bottom of the supporting column tube (8) and close to the positioning strip (102).
3. The small rural domestic sewage treatment purification tank as set forth in claim 1, wherein: the one-way valves are arranged on the branch pipes (9) and can only discharge to the main blow-down pipe (10), and one end of the main blow-down pipe (10) close to the sludge pipe hole (202) is provided with a blow-down one-way valve (11).
4. A small rural domestic sewage treatment purification tank according to claim 3, wherein: the main blow-down pipe (10) is longitudinally arranged below the tank cover (2) in the middle, the main blow-down pipe (10) is obliquely arranged, one end close to the sludge pipe hole (202) is lower than the sealing end, and the main blow-down pipe (10) is fixed on a partition plate of the main tank body (1) through a pipe clamp or a support plate.
5. The small rural domestic sewage treatment purification tank according to claim 3 or 4, wherein: still include clear water back flow (13), clear water back flow (13) standpipe section bottom inserts clear water district in clear water district (7), the delivery port setting of clear water back flow (13) is in the top in anaerobism district (3), clear water back flow (13) are also through stripping assembly (12) drive.
6. A sewage disposal method for a small rural domestic sewage treatment purifying tank is characterized by comprising the following steps of: when the sewage treatment and purification tank is applied to the small rural domestic sewage treatment and purification tank as claimed in any one of claims 1 to 5, a sewage vertical pipe is arranged in each region where sludge is deposited and accumulated, the tops of the sewage vertical pipes are summarized to a main sewage pipe (10), and the nondegradable sludge in each region can be sequentially discharged by independently controlling the work of a gas stripping outlet head in each sewage vertical pipe; the sludge discharged by the main sewage discharge pipe (10) is led out by the sewage discharge epitaxial pipe (15) to a vertical shaft (16) beside the purifying tank equipment, and the vertical shaft (16) is used for placing a sewage bucket (17) to receive the sludge.
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| CN202310675688.2A CN116573768B (en) | 2023-06-08 | 2023-06-08 | Small rural domestic sewage treatment and purification tank and sewage discharge method thereof |
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| CN116573768B true CN116573768B (en) | 2023-11-14 |
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| WO2022083803A1 (en) * | 2021-01-11 | 2022-04-28 | 凌志环保股份有限公司 | Liftable purifying tank for treating rural domestic sewage |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200296744Y1 (en) * | 2002-08-26 | 2002-11-30 | 박영식 | Purifying Apparatus for Small Sewage |
| CN102659227A (en) * | 2012-05-03 | 2012-09-12 | 绍兴市制水有限公司曹娥江分公司 | Middle-set type high density sediment water purification tank and purification technology thereof |
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| CN116573768A (en) | 2023-08-11 |
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