CN216808521U - Domestic sewage treatment system - Google Patents
Domestic sewage treatment system Download PDFInfo
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- CN216808521U CN216808521U CN202220554632.2U CN202220554632U CN216808521U CN 216808521 U CN216808521 U CN 216808521U CN 202220554632 U CN202220554632 U CN 202220554632U CN 216808521 U CN216808521 U CN 216808521U
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- 239000010865 sewage Substances 0.000 title claims abstract description 89
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 24
- 230000003647 oxidation Effects 0.000 claims abstract description 23
- 238000005273 aeration Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 238000010992 reflux Methods 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 13
- 239000010802 sludge Substances 0.000 claims description 6
- 230000001877 deodorizing effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 26
- 238000000746 purification Methods 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
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- 238000000354 decomposition reaction Methods 0.000 description 3
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- 244000144972 livestock Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 244000144977 poultry Species 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000035790 physiological processes and functions Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
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- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a domestic sewage treatment system, and relates to the field of sewage treatment. The utility model provides a domestic sewage treatment system, including burying underground in the below-ground integration sewage treatment pond, continuous sand setting mechanism, ammonia nitrogen removal pond, good oxygen aeration backward flow pond, oxidation ditch, anaerobism backward flow pond, biological pond in proper order that integration sewage treatment pond includes. The integrated sewage treatment tank occupies small area and has good treatment effect; the whole integrated sewage treatment tank is buried under the ground surface, and the treatment system has no odor and does not influence the whole surrounding living environment.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to a domestic sewage treatment system.
Background
Along with the development of large-scale livestock and poultry breeding industry and aquatic product fishery, the comprehensive utilization of livestock and poultry breeding manure resources and the comprehensive treatment of fishery tail water are carried out by meeting a meeting schedule. The biological purification technology is a safe purification mode, and particularly relates to a process that the number of pollutants in the environment is reduced, the concentration is reduced, the toxicity is reduced, and harmful components are converted and decomposed until the harmful components disappear by the organisms through self metabolism. Before the technology is adopted, the treatment of the large-scale livestock and poultry breeding excrement, the tail water of aquatic fishery, the rural domestic sewage and the excrement water at the tail end of a toilet is mainly carried out by adopting the modes of building a sewage treatment station, a micro-power sewage treatment station, an artificial wetland and the like, and the problems of wide facility building occupied area, influence on the surrounding living environment, unsatisfactory waste treatment effect and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a domestic sewage treatment system, which is a novel unpowered biological purification sewage treatment facility specially designed for recycling industrial wastewater and domestic sewage, breaks through the process used by the traditional sewage treatment facility, thereby forming the prior novel sewage treatment technology, ensuring that the effluent quality is excellent and stable, greatly utilizing water resources and reducing environmental pollution; the integrated biological sewage treatment tank is designed to be buried underground, and the sewage treatment tank does not influence the whole living environment around.
The embodiment of the utility model is realized by the following steps:
the embodiment of the application provides a domestic sewage treatment system, including burying underground in the below-ground integration sewage treatment pond, integration sewage treatment pond is including consecutive sand setting mechanism, ammonia nitrogen removal pond, good oxygen aeration backward flow pond, oxidation ditch, anaerobism backward flow pond and biological pond. The integrated sewage treatment tank occupies small area and has good treatment effect; the whole integrated sewage treatment tank is buried under the ground surface, and the treatment system has no odor and does not influence the whole surrounding living environment.
In some embodiments of the utility model, the sand setting mechanism comprises a sewage inlet premixing tank, a filtering tank, a primary settling tank and a primary settling tank which are connected in sequence, wherein the filtering tank is provided with multi-stage grid spaces with grid gaps reduced in sequence. Impurities which are insoluble in water can be removed through the multi-stage grids, and a part of suspended matters can be precipitated in the sedimentation tank; the design among the multi-stage grids can lead the filtering speed to be increased.
In some embodiments of the utility model, the aerobic aeration return tank is provided with a water inlet pipe, a clear water discharge pipe and a sludge discharge pipe. Aerobic bacteria require oxygen in life and cannot survive without oxygen. Under the condition of oxygen, the aerobic bacteria can decompose the organic matters into carbon dioxide.
It should be noted that, in some embodiments of the present invention, a sludge pump is disposed at the sludge discharge pipe, and the filtered sludge is directly pumped out.
In some embodiments of the utility model, a dephosphorization and deodorization tank is further arranged between the anaerobic reflux tank and the biological tank. The biochemical method has good effect on treating COD or organic phosphorus.
It is noted that in some embodiments of the present invention, inorganic hypophosphorous acid in the wastewater can also be removed by adding a phosphorus removal agent.
In some embodiments of the utility model, the anaerobic reflux pool is provided with a sealing cover and a biogas cover for storing biogas, and the biogas cover is connected with a biogas conveying pipe. Anaerobic bacteria can only survive under anaerobic conditions, sometimes oxygen is fatal to them; anaerobic bacteria can decompose complex organic matters into simpler organic matters (methane) and carbon dioxide under the anaerobic condition. The methane cover can collect the generated methane (marsh gas), and the marsh gas conveying pipe can convey the collected methane to each family to become renewable energy for life.
In some embodiments of the utility model, the biological pond is a plurality of biological ponds, and the plurality of biological ponds are connected in series. The biological membrane in the biological tank continuously performs biological adsorption, decomposition and purification on organic pollutants in the sewage, and the sewage after biological decomposition enters a next-level biological tank for biological filtration.
In some embodiments of the utility model, the upper end of the biological pond is provided with a water outlet, the lower end of the biological pond is provided with a water inlet, and the bottom of the biological pond is provided with a water distribution pipe which is communicated with the water inlet of the biological pond.
It should be noted that, in some embodiments of the present invention, the biological tank is provided with a dedicated biological filler, a water outlet is provided below the biological tank, the tank body on the side of the water outlet is a biological filtering area, the biological filtering area is provided with one or more sets of slots, into which a filter frame of an authigenic dynamic membrane capable of moving up and down is inserted, the authigenic dynamic membrane is obtained by placing a high-strength filter gauze on the frame and inserting the filter gauze into the slots to filter the sewage from the biological reaction area, during the filtering process, microorganisms and suspended solids in the sewage are continuously aggregated and attached to the filter gauze to gradually form a naturally-growing biomass filter layer, i.e., an authigenic dynamic membrane, and after the authigenic dynamic membrane is formed, on one hand, the suspended solids in the sewage can be subjected to column filtration, on the other hand, the organic pollutants cut off by the columns can be subjected to biological decomposition, the water outlet of the biological filtering area is provided with a water outlet valve, and the water outlet valve is used for discharging and treating the effluent, The liquid level of the pool water is controlled, so that the water surface of the pool body is kept at a position which can immerse the biological filler and is not higher than the air inlet.
In some embodiments of the present invention, the aerobic aeration return tank, the oxidation ditch and the anaerobic return tank are connected in series and side by side, the top of the opposite ends of the aerobic aeration return tank are respectively provided with a first water inlet and a first water outlet, the top of the opposite ends of the anaerobic return tank are respectively provided with a second water inlet and a second water outlet, the first water outlet and the second water inlet are both communicated with the oxidation ditch, and the first water outlet and the second water inlet are located at both ends of the oxidation ditch.
In some embodiments of the utility model, the sand setting mechanism, the ammonia nitrogen removal tank, the aerobic aeration reflux tank, the oxidation ditch, the anaerobic reflux tank and the bottom of the biological tank are all provided with waterproof layers. The waterproof layer is laid at the bottom of the pool to prevent sewage from seeping into soil and polluting underground water.
In some embodiments of the utility model, the water outlet of the biological pond is sequentially connected with a clean water drainage pond and a water outlet. The water at the water outlet can reach the discharge standard and can even be used for irrigating crops, thereby achieving the purpose of recycling.
Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:
the embodiment of the application provides a domestic sewage treatment system, including burying underground in the below-ground integration sewage treatment pond, the consecutive sand setting mechanism that integration sewage treatment pond included, remove ammonia nitrogen pond, good oxygen aeration backward flow pond, oxidation ditch, anaerobism backward flow pond, biological pond. The integrated sewage treatment tank occupies small area and has good treatment effect; the whole integrated sewage treatment tank is buried under the ground surface, and the treatment system has no odor and does not influence the whole surrounding living environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view showing the construction of a domestic sewage treatment system according to the present invention;
fig. 2 is a sectional view of a domestic sewage treatment system of the present invention.
Icon: 1-sewage inlet, 2-premixing tank, 3-filtering tank, 31-grid, 4-primary grit chamber, 5-secondary grit chamber, 6-ammonia nitrogen removing tank, 7-aerobic aeration reflux tank, 8-oxidation ditch, 9-anaerobic reflux tank, 10-dephosphorization and deodorization tank, 11-biological tank, 111-biological purification first tank, 112-biological purification second tank, 13-clear water drainage tank, 14-water outlet, 100-integrated sewage treatment tank, 200-earth surface, 300-waterproof layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not require that the components be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1, fig. 1 is a schematic structural view of a domestic sewage treatment system according to the present invention.
The embodiment provides a domestic sewage treatment system, it is including burying underground in the below 200 integrated sewage treatment ponds 100 of earth's surface, the consecutive sewage water inlet 1 that integrated sewage treatment pond 100 includes, mix pond 2 in advance, filtering ponds 3, primary grit chamber 4, secondary grit chamber 5, remove ammonia nitrogen pond 6, good oxygen aeration backward flow pond 7, oxidation ditch 8, anaerobism backward flow pond 9, dephosphorization deodorization pond 10, biological purification pond 111, two ponds 112 of biological purification, clear water drainage ponds 13, delivery port 14.
Mainly utilizes the physiological function of microbial metabolism, reduces the quantity of organic matters in the environment by oxidative degradation, reduces the degree of gradation, lightens the toxicity, and converts and decomposes harmful components until the harmful components disappear. By adopting certain artificial technical measures and means, a good environment beneficial to the growth and the reproduction of the microorganisms is created, the proliferation of the microorganisms and the physiological function of the metabolism of the microorganisms are accelerated, and the normal use of a circulating regeneration system is achieved.
When the biological sewage treatment device is used, wastewater is firstly introduced into the premixing tank 2, passes through multi-stage grating chambers, primary sedimentation tank I, primary sedimentation tank II and ammonia nitrogen removal (first stage), then passes through aerobic aeration primary reflux (second stage), enters the oxidation ditch 8 (third stage), passes through anaerobic reflux, enters the biological nutrition tank (third stage), passes through dephosphorization deodorization and primary and secondary biological purification, and enters the clear water drainage tank 13 to be discharged (fourth stage). According to the amount of biological sludge and the water quality condition, the requirement can be basically met in one week generally, and if the water quality is complicated and an anaerobic system is provided, the purification can be completed in 3 to 6 months.
Firstly, the quality and efficiency of rural domestic sewage treatment are improved. The biological purification tank is built in a multi-household combined construction mode, the multi-household domestic sewage is collected and treated, convenience is brought to farmers, the cost is reduced, the simultaneous treatment of three water (domestic sewage, washing water and toilet tail end liquid dung) in rural areas is promoted, and the biological purification tank is well received by rural farmers at the test point. Secondly, the rural domestic sewage discharge standard is improved. According to the comparison of experimental data, the discharge standard of the rural domestic sewage after biological purification treatment reaches the national first-class A standard, and the rural human living environment improvement is strongly promoted.
The embodiment of the application provides a domestic sewage treatment system, including burying underground in the integration sewage treatment pond 100 below the earth's surface 200, the sand setting mechanism, the ammonia nitrogen removal pond 6, good oxygen aeration backward flow pond 7, oxidation ditch 8, anaerobism backward flow pond 9, biological pond 11 that link to each other in proper order that integration sewage treatment pond 100 includes. The integrated sewage treatment tank 100 occupies a small area and has a good treatment effect; the whole integrated sewage treatment tank 100 is buried below the ground surface 200, and the whole sewage treatment system is odorless and does not influence the whole surrounding living environment.
Example 2
Referring to fig. 1, fig. 1 is a schematic structural view of a domestic sewage treatment system according to the present invention; fig. 2 is a sectional view of a domestic sewage treatment system of the present invention.
The present embodiment provides a domestic sewage treatment system, which is substantially the same as the domestic sewage treatment system apparatus provided in embodiment 1, and the main difference between the two systems is that;
in this embodiment, the bottom of the sand settling mechanism, the ammonia nitrogen removal tank 6, the aerobic aeration reflux tank 7, the oxidation ditch 8, the anaerobic reflux tank 9 and the biological tank 11 are all provided with a waterproof layer 300. The purpose of the waterproof layer 300 laid on the bottom of the tank is to prevent sewage from infiltrating into the soil, and to avoid polluting the underground water.
In this embodiment, the aerobic aeration return tank 7, the oxidation ditch 8 and the anaerobic return tank 9 are connected in sequence side by side, the tops of the two opposite ends of the aerobic aeration return tank 7 are respectively provided with a first water inlet and a first water outlet, the tops of the two opposite ends of the anaerobic return tank 9 are respectively provided with a second water inlet and a second water outlet, the first water outlet and the second water inlet are both communicated with the oxidation ditch 8, and the first water outlet and the second water inlet are located at the two ends of the oxidation ditch 8. Only when the water purified by the aerobic reflux pool 7 of the upper stage reaches the height of the first water outlet, the water flows into the oxidation ditch 8, and when the water in the oxidation ditch 8 reaches the height of the second water inlet, the water flows into the anaerobic reflux pool 9 to continue to evolve.
In this embodiment, the through pipes of the aerobic aeration return tank 7, the oxidation ditch 8 and the anaerobic return tank 9 may be further provided with a liquid level automatic control mechanism and an electromagnetic valve for controlling the opening and closing of the water inlet and the water outlet, and the liquid level automatic control mechanism is connected with the electromagnetic valve. The automatic control system is connected with the electromagnetic valve, the liquid level height in the pool can be monitored through the automatic control system, and automatic control over the valve is achieved. When the liquid level in the pool is low or the evolution time is not reached, the electromagnetic valve is not opened, each pool is separated, when the liquid level in the pool is high or the evolution time is reached, the electromagnetic valve is opened, the clean water in the previous pool automatically flows into the next pool, the evolution is continued, and the evolution efficiency is improved.
The embodiment of the application provides a domestic sewage treatment system, which is based on the embodiment 1. A waterproof layer 300 is laid at the bottom of the pool to prevent sewage from infiltrating into soil, so that underground water is prevented from being polluted; the setting of valve and liquid level automated control mechanism for this sewage treatment system is more intelligent, and the reason flow is simple, and the management is convenient, and the evolution efficiency is higher.
Example 3
Referring to fig. 1, fig. 1 is a schematic structural view of a domestic sewage treatment system according to the present invention.
This embodiment provides a domestic sewage treatment system, which is basically the same as the domestic sewage treatment system provided in embodiment 2, and the main differences between the two systems are:
in this embodiment, the anaerobic reflux pool 9 is provided with a biogas collecting device for storing biogas, and the biogas collecting device is connected with a biogas conveying pipe. Anaerobic bacteria can only survive under anaerobic conditions, and sometimes oxygen is fatal to them; anaerobic bacteria can decompose complex organic matters into simpler organic matters (methane) and carbon dioxide under the anaerobic condition. The methane cover can collect the generated methane (marsh gas), and the marsh gas conveying pipe can convey the collected methane to each household to become renewable energy for life. And the methane is a green energy source, only carbon dioxide and water are generated during combustion, and environmental pollution cannot be caused.
In summary, the embodiments of the present invention have at least the following advantages or beneficial effects:
the embodiment of the application provides a domestic sewage treatment system, including burying underground in the integration sewage treatment pond 100 below the earth's surface 200, the sand setting mechanism, the ammonia nitrogen removal pond 6, good oxygen aeration backward flow pond 7, oxidation ditch 8, anaerobism backward flow pond 9, biological pond 11 that link to each other in proper order that integration sewage treatment pond 100 includes. The integrated sewage treatment tank occupies small area and has good treatment effect; the whole integrated sewage treatment tank is buried below the ground surface 200, and the sewage treatment system has no odor and does not influence the whole surrounding living environment.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a domestic sewage treatment system, its characterized in that, is including burying underground in the below-ground integrated sewage treatment pond, integrated sewage treatment pond is including consecutive sand setting mechanism, ammonia nitrogen removal pond, good oxygen aeration backward flow pond, oxidation ditch, anaerobism backward flow pond and biological pond.
2. The domestic sewage treatment system of claim 1, wherein the sand settling mechanism comprises a sewage inlet premixing tank, a filtering tank, a primary settling tank and a primary settling tank which are connected in sequence, and the filtering tank is provided with a multi-stage grid with grid gaps sequentially reduced.
3. The domestic sewage treatment system of claim 1 wherein said aerobic aeration reflux tank is provided with a water inlet pipe, a clear water discharge pipe and a sludge discharge pipe.
4. The domestic sewage treatment system of claim 1 wherein a dephosphorizing and deodorizing tank is further disposed between said anaerobic reflux tank and said biological tank.
5. The domestic sewage treatment system of claim 1 wherein said anaerobic reflux pool is provided with a biogas collection device for storing biogas, said biogas collection device being connected to a biogas delivery pipe.
6. The domestic sewage treatment system of claim 1 wherein said biological tank is a plurality of said biological tanks, said plurality of biological tanks being serially connected in series.
7. The domestic sewage treatment system of claim 1 wherein the biological tank has a water outlet at an upper end thereof and a water inlet at a lower end thereof, and the biological tank has a water distribution pipe at a bottom thereof, the water distribution pipe being in communication with the water inlet of the biological tank.
8. The domestic sewage treatment system according to claim 1, wherein said aerobic aeration return tank, said oxidation ditch and said anaerobic return tank are connected in series side by side, wherein a first water inlet and a first water outlet are provided at the top of the opposite ends of said aerobic aeration return tank, respectively, a second water inlet and a second water outlet are provided at the top of the opposite ends of said anaerobic return tank, respectively, said first water outlet and said second water inlet are both communicated with said oxidation ditch, and said first water outlet and said second water inlet are located at both ends of said oxidation ditch.
9. The domestic sewage treatment system according to claim 1, wherein said sand settling mechanism, said ammonia nitrogen removal tank, said aerobic aeration reflux tank, said oxidation ditch, said anaerobic reflux tank and said biological tank bottom are all provided with a waterproof layer.
10. The domestic sewage treatment system of claim 1 wherein the water outlet of the biological tank is connected in sequence with a clear water drainage tank and a water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220554632.2U CN216808521U (en) | 2022-03-09 | 2022-03-09 | Domestic sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220554632.2U CN216808521U (en) | 2022-03-09 | 2022-03-09 | Domestic sewage treatment system |
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| Publication Number | Publication Date |
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| CN216808521U true CN216808521U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220554632.2U Expired - Fee Related CN216808521U (en) | 2022-03-09 | 2022-03-09 | Domestic sewage treatment system |
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| Country | Link |
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| CN (1) | CN216808521U (en) |
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2022
- 2022-03-09 CN CN202220554632.2U patent/CN216808521U/en not_active Expired - Fee Related
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