CN220165988U - Integrated buried sewage treatment equipment - Google Patents

Integrated buried sewage treatment equipment Download PDF

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Publication number
CN220165988U
CN220165988U CN202320329621.9U CN202320329621U CN220165988U CN 220165988 U CN220165988 U CN 220165988U CN 202320329621 U CN202320329621 U CN 202320329621U CN 220165988 U CN220165988 U CN 220165988U
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tank
pipe
flocculation
fixedly arranged
tank body
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CN202320329621.9U
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Chinese (zh)
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于安方
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Zhongqiao Tus Shandong New Material Technology Co ltd
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Zhongqiao Tus Shandong New Material Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an integrated buried sewage treatment device which is used for filtering and disinfecting sewage layer by layer, can effectively remove impurities in the sewage, reduces the generation of secondary precipitation, has small occupied area, lower production cost and improves practicability; the sewage treatment device comprises a treatment tank body, a filtering tank, a flocculation tank, an oxidation disinfection tank and a sewage inlet pipe, wherein the treatment tank body is elliptical, the filtering tank, the flocculation tank and the oxidation disinfection tank are sequentially arranged in the treatment tank body along the length of the treatment tank body, and the sewage inlet pipe is fixedly connected to the middle part of the left side wall of the treatment tank body; still include filter equipment, flocculation device and oxidation device, filter equipment installs inside the filtering ponds, and flocculation device installs the inside at the flocculation pond, and oxidation device installs the top at the treatment tank body, and oxidation device's output is located the inside bottom in oxidation disinfection pond.

Description

Integrated buried sewage treatment equipment
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to integrated buried sewage treatment equipment.
Background
At present, with the rapid increase of urban population in China, the urban water demand is increased. However, the existing water supply level is difficult to meet the requirements, and if domestic sewage is better treated and reused, the problem of water resource shortage can be relieved, and the domestic sewage is mainly discharged water generated by various kitchen water, washing water and toilet water used in human life and is mostly nontoxic inorganic salts. The sewage produced in the human living process is one of main pollution sources of water, and the integrated domestic sewage treatment equipment proposed by the prior art publication No. CN104030442A comprises a tank body, wherein a water inlet hydrolysis area, an aerobic area and a sedimentation area are formed in the tank body in a separated manner; the device also includes a device region; the method is characterized in that: the device area is arranged outside the tank body, the water inlet hydrolysis area comprises a water passing channel which surrounds the inner part of the tank body for a circle, and the aerobic area and the sedimentation area are positioned in the water passing channel; the bottom is provided with the diving sewage pump and aeration equipment in the good oxygen district, wherein diving the delivery port of sewage pump through the pipeline with the water inlet end of water channel is linked together, but the function is single, and area is big, is unfavorable for small-scale use, and treatment effeciency is low, and maintenance cost is high, and life is short, and the practicality is relatively poor.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the integrated buried sewage treatment equipment which is used for filtering and disinfecting sewage layer by layer, effectively removing impurities in the sewage, reducing the generation of secondary precipitation, reducing the occupied area of the equipment, reducing the production cost and improving the practicability.
The utility model relates to integrated buried sewage treatment equipment, which comprises a treatment tank body, a filter tank, a flocculation tank, an oxidation disinfection tank and a wastewater inlet pipe, wherein the treatment tank body is elliptical, the filter tank, the flocculation tank and the oxidation disinfection tank are sequentially arranged along the length of the treatment tank body, and the wastewater inlet pipe is fixedly connected with the middle part of the left side wall of the treatment tank body; the device also comprises a filtering device, a flocculation device and an oxidation device, wherein the filtering device is arranged in the filtering tank, the flocculation device is arranged in the flocculation tank, the oxidation device is arranged at the top end of the treatment tank body, and the output end of the oxidation device is positioned at the bottom end of the oxidation disinfection tank; oval-shaped treatment tank body can provide the support to its inside after equipment buries underground, and after sewage passes through waste water inlet tube input treatment tank body, through filter equipment, flocculation device and oxidation device filter and disinfect the successive layer of sewage, can effectively get rid of debris in the sewage, reduce the production of secondary sedimentation, and equipment's area is little, but buries under the earth's surface, low in production cost improves the practicality.
Preferably, the filtering device comprises a first water inlet pipe, a mounting block, a filter screen, a pull rod, a pull ring, an overhaul pipe, a movable cover and a first connecting pipe, wherein the first water inlet pipe is fixedly arranged on the upper part of the right side wall of the filtering tank, the mounting block is fixedly arranged in the middle of the inner side wall of the filtering tank, the filter screen is arranged at the top end of the mounting block, the pull rod is fixedly connected with the top end of the middle of the filter screen, the pull ring is arranged at the top end of the pull rod, the overhaul pipe is fixedly arranged at the top end of the treatment tank body and corresponds to the position of the filtering tank, the movable cover is movably hinged to the top end of the overhaul pipe, and the first connecting pipe is fixedly arranged at the bottom of the right side wall of the filtering tank so that the filtering tank is communicated with the flocculation tank; can get rid of big floater, suspended solid in the domestic sewage through the filter screen, open movable cover accessible maintenance pipe and pull out the pull ring to upwards pull up the filter screen through the pull rod, regularly clear up the accumulational impurity on the filter screen, avoid impurity to block up the filter screen and influence filtration efficiency, domestic sewage after the coarse filtration flows into in the flocculation basin through first connecting pipe.
Preferably, the flocculation device comprises a sealed box, a rotating motor, a rotating shaft, a plurality of groups of stirring rods, an adder, a dosing pipe, an overflow pipe and a sewage drain pipe, wherein the sealed box is fixedly arranged at the bottom end inside the flocculation tank, the rotating motor is fixedly arranged in the sealed box, the output end of the rotating motor penetrates through the top end of the sealed box to be fixedly provided with the rotating shaft, the plurality of groups of stirring rods are fixedly arranged on the outer side wall of the rotating shaft, the plurality of groups of stirring rods are provided with drainage holes, the adder is fixedly arranged at the upper part of the inner side wall of the left end of the flocculation tank, the dosing pipe is fixedly arranged at the top end of the treatment tank body and corresponds to the position of the flocculation tank, the dosing cover is covered above the dosing pipe, and the overflow pipe is fixedly arranged at the upper part of the right side wall of the flocculation tank to enable the flocculation tank to be communicated with the oxidation disinfection tank; the reagent is put into to the adder through the dosing tube above the flocculation tank, and is usually coagulant and coagulant aid, after the domestic sewage after coarse filtration then flows into the flocculation tank through the first connecting tube, the rotating motor is started, the rotating motor drives the rotating shaft to rotate, the rotating shaft drives the stirring rod to rotate, particles which are difficult to precipitate in water can be mutually polymerized to form colloid, then the colloid is combined with impurities in the water to form larger flocculating body, the larger flocculating body is discharged through the sewage discharge pipeline, the sewage discharge pipeline is connected with an external sludge discharge pipeline system, and the flocculated sewage overflows into the oxidation disinfection tank through the overflow pipe.
Preferably, the oxidation device comprises an aerator, a gas pipeline, an aeration pipe, a plurality of aeration spray heads and a second connecting pipe, wherein the aerator is fixedly arranged at the top end of the treatment tank body and corresponds to the oxidation disinfection tank in position, the output end of the aerator is fixedly connected with the gas pipeline, the output end of the gas pipeline penetrates through the top end of the treatment tank body and stretches into the bottom end of the oxidation disinfection tank, the aeration pipe is fixedly connected with, a plurality of aeration spray heads are fixedly arranged above the aeration pipe, and the second connecting pipe is fixedly arranged at the bottom of the right side wall of the oxidation disinfection tank; the flocculated and filtered sewage overflows into an oxidation disinfection tank through an overflow pipe, an aerator is started to provide oxygen, the oxygen is input into an aeration pipe through a gas transmission pipeline, is discharged into the sewage through an aeration nozzle, is subjected to aerobic treatment, and then flows out through a second connecting pipe.
Preferably, the device also comprises a water outlet pipe, a flow counter and two control valves, wherein the input end of the water outlet pipe is fixedly arranged at the upper part of the right side wall of the treatment tank body, the output end of the water outlet pipe extends out of the ground, the flow counter is arranged, and the two control valves are respectively fixedly arranged at the input end of the wastewater inlet pipe and the output end of the water outlet pipe; after the reaction, water flowing out through the second connecting pipe is deposited in the treatment tank body, a control valve on the water outlet pipe is opened, the water is outwards discharged through the water outlet pipe, the instantaneous flow and the total volume of the discharge can be monitored and recorded through the flow counter, and the convenience in use is improved.
Preferably, the treatment tank body is made of stainless steel; the stainless steel treatment tank has the advantages of acid and alkali corrosion resistance and aging resistance. High compressive strength and long service life, and can avoid the corrosion of the inner wall polluted water.
Compared with the prior art, the utility model has the beneficial effects that: oval-shaped treatment tank body can provide the support to its inside after equipment buries underground, and after sewage passes through waste water inlet tube input treatment tank body, through filter equipment, flocculation device and oxidation device filter and disinfect the successive layer of sewage, can effectively get rid of debris in the sewage, reduce the production of secondary sedimentation, and equipment's area is little, but buries under the earth's surface, low in production cost improves the practicality.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the filtration tank;
FIG. 3 is a schematic view of the internal structure of a flocculation basin;
FIG. 4 is a schematic view of the internal structure of the oxidation disinfection tank;
FIG. 5 is a schematic partial perspective view of a flocculation apparatus;
the reference numerals in the drawings: 1. a treatment tank; 2. a filtering tank; 3. a flocculation tank; 4. an oxidation disinfection pool; 5. a wastewater inlet pipe; 6. a first water inlet pipe; 7. a mounting block; 8. a filter screen; 9. a pull rod; 10. a pull ring; 11. a service pipe; 12. a movable cover; 13. a first connection pipe; 14. a seal box; 15. a rotating electric machine; 16. a rotation shaft; 17. a stirring rod; 18. a drain hole; 19. an adder; 20. a dosing tube; 21. an overflow pipe; 22. a sewage drain pipe; 23. an aerator; 24. a gas line; 25. an aeration pipe; 26. an aeration spray head; 27. a second connection pipe; 28. a water outlet pipe; 29. a flow counter; 30. and a control valve.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
As shown in fig. 1, 2 and 4, the treatment tank 1 is elliptical, a filter tank 2, a flocculation tank 3 and an oxidation disinfection tank 4 are sequentially arranged in the treatment tank 1 along the length of the treatment tank, and a wastewater inlet pipe 5 is fixedly connected to the middle part of the left side wall of the treatment tank 1; the utility model is characterized in that the utility model also comprises a filter device, a flocculation device and an oxidation device, the filter device is arranged in the filter tank 2, the flocculation device is arranged in the flocculation tank 3, the oxidation device is arranged at the top end of the treatment tank 1, the output end of the oxidation device is positioned at the bottom end of the oxidation disinfection tank 4, the filter device comprises a first water inlet pipe 6, a mounting block 7, a filter screen 8, a pull rod 9, a pull ring 10, an overhaul pipe 11, a movable cover 12 and a first connecting pipe 13, the first water inlet pipe 6 is fixedly arranged at the upper part of the right side wall of the filter tank 2, the mounting block 7 is fixedly arranged in the middle part of the inner side wall of the filter tank 2, the filter screen 8 is arranged at the top end of the mounting block 7, the pull rod 9 is fixedly connected with the top end of the middle part of the filter screen 8, the pull ring 10 is arranged at the top end of the pull rod 9, the overhaul pipe 11 is fixedly arranged at the top end of the treatment tank 1 and corresponds to the position of the filter tank 2, the top end of the overhaul pipe 11 is movably hinged with a movable cover 12, a first connecting pipe 13 is fixedly arranged at the bottom of the right side wall of the filter tank 2, so that the filter tank 2 is communicated with the flocculation tank 3, the oxidation device comprises an aerator 23, a gas pipeline 24, an aeration pipe 25, a plurality of aeration spray heads 26 and a second connecting pipe 27, the aerator 23 is fixedly arranged at the top end of the treatment tank 1 and corresponds to the position of the oxidation disinfection tank 4, the output end of the aerator 23 is fixedly connected with the gas pipeline 24, the output end of the gas pipeline 24 penetrates through the top end of the treatment tank 1 and stretches into the bottom end of the oxidation disinfection tank 4, the aeration pipe 25 is fixedly connected with a plurality of aeration spray heads 26, the second connecting pipe 27 is fixedly arranged at the bottom of the right side wall of the oxidation disinfection tank 4, and the treatment tank 1 is made of stainless steel;
after sewage is input into the treatment tank body 1 through the wastewater inlet pipe 5, large floaters and suspended matters in domestic sewage can be removed through the filter screen 8, the movable cover 12 is opened to pull the pull ring 10 through the overhaul pipe 11, thereby the filter screen 8 is pulled up through the pull rod 9, impurities accumulated on the filter screen 8 are cleaned regularly, the influence of the impurities on the filter screen 8 is avoided, the coarsely filtered domestic sewage flows into the flocculation tank 3 through the first connecting pipe 13, the flocculated and filtered sewage overflows into the oxidation disinfection tank 4 through the overflow pipe 21, the aerator 23 is started to provide oxygen, the oxygen is input into the aeration pipe 25 through the gas pipeline 24, the sewage is discharged through the aeration spray nozzle 26 for aerobic treatment, and then the sewage flows out through the second connecting pipe 27, so the treatment tank body 1 made of stainless steel has acid and alkali corrosion resistance and ageing resistance. High compressive strength and long service life, and can avoid the corrosion of the inner wall polluted water.
Example 2
As shown in fig. 1, 3 and 5, the flocculation device comprises a sealed box 14, a rotating motor 15, a rotating shaft 16, a plurality of groups of stirring rods 17, an adder 19, a dosing pipe 20, an overflow pipe 21 and a sewage drain pipe 22, wherein the sealed box 14 is fixedly arranged at the bottom end inside the flocculation tank 3, the rotating motor 15 is fixedly arranged in the sealed box 14, the output end of the rotating motor 15 penetrates through the top end of the sealed box 14 and is fixedly provided with the rotating shaft 16, the plurality of groups of stirring rods 17 are fixedly arranged on the outer side wall of the rotating shaft 16, the plurality of groups of stirring rods 17 are provided with the drainage holes 18, the adder 19 is fixedly arranged at the upper part of the inner side wall at the left end of the flocculation tank 3, the dosing pipe 20 is fixedly arranged at the top end of the treatment tank 1, the upper part of the dosing pipe 20 is covered with a dosing cover corresponding to the position of the flocculation tank 3, the overflow pipe 21 is fixedly arranged at the upper part of the right side wall of the flocculation tank 3, so that the flocculation tank 3 is communicated with the oxidation disinfection tank 4, the sewage discharge pipe 22 is fixedly arranged below the treatment tank 1 and corresponds to the position of the flocculation tank 3, the treatment tank further comprises a water outlet pipe 28, a flow counter 29 and two control valves 30, the input end of the water outlet pipe 28 is fixedly arranged at the upper part of the right side wall of the treatment tank 1, the output end of the water outlet pipe 28 extends out of the ground, the flow counter 29 is arranged, and the two control valves 30 are respectively fixedly arranged at the input end of the wastewater inlet pipe 5 and the output end of the water outlet pipe 28;
the medicament, typically a coagulant and a coagulant aid, is put into the adder 19 through the dosing pipe 20 above the flocculation tank 3, after the coarsely filtered domestic sewage flows into the flocculation tank 3 through the first connecting pipe 13, the rotating motor 15 is started, the rotating motor 15 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the stirring rod 17 to rotate, particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, then the colloid is combined with impurities in the water body to form larger flocculating constituent, the larger flocculating constituent is discharged through the sewage discharge pipe 22, the sewage discharge pipe 22 is connected with an external sludge discharge pipe system, the flocculated sewage overflows into the oxidation disinfection tank 4 through the overflow pipe 21, after the reaction, the water flows out through the second connecting pipe 27, after the reaction, the control valve 30 on the water outlet pipe 28 is opened, the water is discharged outwards through the water outlet pipe 28, the instantaneous flow and the total volume discharged can be monitored and recorded through the flow counter 29, and the convenience in use is improved.
As shown in figures 1 to 5, in the integrated buried sewage treatment equipment of the utility model, when in operation, firstly, a treatment tank body 1 is buried underground, a wastewater inlet pipe 5 is fixedly connected with a domestic sewage pipeline, a control valve 30 is opened, domestic discharged sewage enters a filter tank 2 through the wastewater inlet pipe 5, large floating matters and suspended matters in the domestic sewage can be removed through a filter screen 8, a movable cover 12 is opened to pull a pull ring 10 through an overhaul pipe 11, the filter screen 8 is pulled upwards through a pull rod 9, impurities accumulated on the filter screen 8 are cleaned regularly, the filter screen 8 is prevented from being blocked by the impurities, the domestic sewage after coarse filtration flows into a flocculation tank 3 through a first connecting pipe 13, a medicament is put into an adder 19 through a medicament adding pipe 20 above the flocculation tank 3, a rotary motor 15 is started, the rotating motor 15 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the stirring rod 17 to rotate, particles which are difficult to precipitate in water can be mutually polymerized to form colloid, then the colloid is combined with impurities in water to form larger floccules, the larger floccules are discharged through the sewage discharge pipeline 22, the sewage discharge pipeline 22 is connected with an external sludge discharge pipeline system, flocculated sewage overflows into the oxidation disinfection tank 4 through the overflow pipe 21, the aerator 23 is started to provide oxygen, the oxygen is input into the aeration pipe 25 through the gas pipeline 24 and is discharged into the sewage through the aeration nozzle 26, aerobic treatment is carried out, water flowing out after the reaction through the second connecting pipe 27 is discharged outwards through the water outlet pipe 28 after the water is precipitated in the treatment tank 1, the control valve 30 on the water outlet pipe 28 is opened, and the discharged water quantity is monitored through the flow counter 29.
The rotary motor 15, the adder 19, the aerator 23 and the flow counter 29 of the integrated buried sewage treatment device of the present utility model are purchased on the market, and the person skilled in the art only needs to install and operate according to the attached instructions without the need for creative efforts of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (4)

1. The integrated buried sewage treatment device comprises a treatment tank body (1), a filtering tank (2), a flocculation tank (3), an oxidation disinfection tank (4) and a wastewater inlet pipe (5), wherein the treatment tank body (1) is elliptical, the filtering tank (2), the flocculation tank (3) and the oxidation disinfection tank (4) are sequentially arranged in the treatment tank body (1) along the length of the treatment tank body, and the wastewater inlet pipe (5) is fixedly connected with the middle part of the left side wall of the treatment tank body (1); the flocculation device is arranged in the filter tank (2), the flocculation device is arranged in the flocculation tank (3), the oxidation device is arranged at the top end of the treatment tank body (1), the output end of the oxidation device is positioned at the bottom end of the oxidation disinfection tank (4), the filter device comprises a first water inlet pipe (6), a mounting block (7), a filter screen (8), a pull rod (9), a pull ring (10), an overhaul pipe (11), a movable cover (12) and a first connecting pipe (13), the first water inlet pipe (6) is fixedly arranged at the upper part of the right side wall of the filter tank (2), the mounting block (7) is fixedly arranged in the middle part of the inner side wall of the filter tank (2), the filter screen (8) is arranged at the top end of the mounting block (7), the middle top end of the filter screen (8) is fixedly connected with a pull rod (9), the top end of the pull ring (10) is fixedly arranged at the top end of the treatment tank body (1), the overhaul pipe (11) is corresponding to the position of the filter tank (2), the top end of the overhaul pipe (11) is movably hinged to the upper part of the filter tank (2), and the first connecting pipe (13) is fixedly connected with the right side wall of the filter tank (2); the flocculation device comprises a sealing box (14), a rotating motor (15), a rotating shaft (16), a plurality of groups of stirring rods (17), an adder (19), a dosing pipe (20), an overflow pipe (21) and a sewage drain pipe (22), wherein the sealing box (14) is fixedly arranged at the bottom end inside the flocculation tank (3), the rotating motor (15) is fixedly arranged in the sealing box (14), the output end of the rotating motor (15) penetrates through the top end of the sealing box (14) to fixedly arrange the rotating shaft (16), the plurality of groups of stirring rods (17) are fixedly arranged on the outer side wall of the rotating shaft (16), drain holes (18) are formed in the plurality of groups of stirring rods (17), the adder (19) is fixedly arranged on the upper part of the inner side wall at the left end of the flocculation tank (3), the dosing pipe (20) is fixedly arranged at the top end of the treatment tank body (1) and corresponds to the position of the flocculation tank (3), a dosing cover is arranged above the dosing pipe (20) and fixedly arranged on the upper part of the right side wall of the flocculation tank (3), so that the flocculation tank (3) and the oxidation disinfection tank (4) are communicated, and the sewage drain pipe (22) is fixedly arranged below the flocculation tank (3) and corresponds to the position of the flocculation tank (3).
2. An integrated buried sewage treatment device according to claim 1, characterized in that the oxidation device comprises an aerator (23), a gas pipeline (24), an aeration pipe (25), a plurality of aeration spray heads (26) and a second connecting pipe (27), the aerator (23) is fixedly arranged at the top end of the treatment tank body (1) and corresponds to the position of the oxidation disinfection tank (4), the output end of the aerator (23) is fixedly connected with the gas pipeline (24), the output end of the gas pipeline (24) penetrates through the top end of the treatment tank body (1) to extend into the bottom end of the oxidation disinfection tank (4), and is fixedly connected with the aeration pipe (25), a plurality of aeration spray heads (26) are fixedly arranged above the aeration pipe (25), and the second connecting pipe (27) is fixedly arranged at the bottom of the right side wall of the oxidation disinfection tank (4).
3. An integrated buried sewage treatment device according to claim 1, further comprising a water outlet pipe (28), a flow counter (29) and two control valves (30), wherein the input end of the water outlet pipe (28) is fixedly arranged at the upper part of the right side wall of the treatment tank body (1), the output end of the water outlet pipe (28) extends out of the ground, the flow counter (29) is arranged, and the two control valves (30) are fixedly arranged at the input end of the wastewater inlet pipe (5) and the output end of the water outlet pipe (28) respectively.
4. An integrated buried sewage treatment apparatus according to claim 1, further comprising a treatment tank (1) made of stainless steel.
CN202320329621.9U 2023-02-28 2023-02-28 Integrated buried sewage treatment equipment Active CN220165988U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320329621.9U CN220165988U (en) 2023-02-28 2023-02-28 Integrated buried sewage treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320329621.9U CN220165988U (en) 2023-02-28 2023-02-28 Integrated buried sewage treatment equipment

Publications (1)

Publication Number Publication Date
CN220165988U true CN220165988U (en) 2023-12-12

Family

ID=89056865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320329621.9U Active CN220165988U (en) 2023-02-28 2023-02-28 Integrated buried sewage treatment equipment

Country Status (1)

Country Link
CN (1) CN220165988U (en)

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