CN110980952A - Village sewage infiltration tank - Google Patents
Village sewage infiltration tank Download PDFInfo
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- CN110980952A CN110980952A CN201911362569.1A CN201911362569A CN110980952A CN 110980952 A CN110980952 A CN 110980952A CN 201911362569 A CN201911362569 A CN 201911362569A CN 110980952 A CN110980952 A CN 110980952A
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- 239000010865 sewage Substances 0.000 title claims abstract description 64
- 230000008595 infiltration Effects 0.000 title claims abstract description 18
- 238000001764 infiltration Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000000945 filler Substances 0.000 claims abstract description 40
- 238000005352 clarification Methods 0.000 claims abstract description 39
- 238000005273 aeration Methods 0.000 claims abstract description 32
- 238000011221 initial treatment Methods 0.000 claims abstract description 27
- 230000020477 pH reduction Effects 0.000 claims abstract description 22
- 230000007062 hydrolysis Effects 0.000 claims abstract description 17
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 17
- 239000010802 sludge Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 206010021143 Hypoxia Diseases 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 16
- 238000011282 treatment Methods 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 239000011574 phosphorus Substances 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 238000005325 percolation Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- 230000003301 hydrolyzing effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003562 lightweight material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 240000008167 Calamus deerratus Species 0.000 description 1
- 235000011996 Calamus deerratus Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- -1 for example Substances 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
-
- 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
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本发明涉及村镇生活污水处理技术领域，提供了一种村镇污水渗滤池。该渗滤池包括地埋式的初级处理池，所述初级处理池的下方设置有填料滤池，所述填料滤池的下方设置有净水池；所述初级处理池包括水解酸化池、曝气池及澄清池，所述水解酸化池与所述曝气池连通，所述曝气池与所述澄清池连通，所述澄清池与所述填料滤池连通，所述填料滤池内填充有生物填料；本申请装置自上而下采用了一体式的结构，对污水依次进行水解酸化、好氧、缺氧及厌氧处理，提升了对污水的去除有机物及脱氮除磷效果；且本申请自动一体化程度高，具有较高的可靠性，能适应村镇污水水量小变化大的排水特点，投入成本低，在村镇区域适用性强。
The invention relates to the technical field of village and town domestic sewage treatment, and provides a village and town sewage infiltration tank. The percolation tank includes a buried primary treatment tank, a filler filter tank is arranged under the primary treatment tank, and a water purification tank is arranged under the filler filter tank; the primary treatment tank includes a hydrolysis acidification tank, an aeration tank, a Air tank and clarification tank, the hydrolysis and acidification tank is communicated with the aeration tank, the aeration tank is communicated with the clarification tank, the clarification tank is communicated with the filler filter tank, and the filler filter tank is filled with There are biological fillers; the device of the present application adopts an integrated structure from top to bottom, and sequentially performs hydrolysis and acidification, aerobic, anoxic and anaerobic treatment of sewage, which improves the removal of organic matter and nitrogen and phosphorus from sewage. The application has a high degree of automatic integration, has high reliability, can adapt to the drainage characteristics of small changes in the amount of sewage in villages and towns, and has low input cost and strong applicability in villages and towns.
Description
Technical Field
The invention belongs to the technical field of village and town domestic sewage treatment, and particularly relates to a village and town sewage infiltration tank.
Background
In recent years, sewage treatment in villages and towns has been generally regarded as important, but in villages with dispersed residences and incomplete pipe networks, sewage plants cannot be built like large cities to treat dispersed sewage. And the quality and the quantity of the dispersed sewage are changed greatly, the requirement on the daily operation, maintenance and management is high, the procedures of the conventional urban sewage treatment process such as an oxidation ditch, a sequencing batch activated sludge process, an anaerobic-aerobic process and other technical means are complex, the operation and management cost is high, and the method is not suitable for popularization and application in village and town areas.
The biological filter has the characteristics of low excess sludge yield, impact load resistance and strong adaptability to water quality and water quantity changes, and generally has the advantages of no need of sludge backflow and easy operation, maintenance and management, and is particularly suitable for scattered household treatment of sewage in villages and small towns. The sewage quantity of scattered households in villages and towns is small, the change is large, a trickling filter form is adopted, in order to realize natural ventilation and reoxygenation, the filter is arranged above the ground in multiple layers, the occupied space is large, and the safety is poor; and the filter chamber is influenced by temperature, and the operation condition of the filter chamber in winter is often very poor.
Disclosure of Invention
The invention aims to provide a village and town sewage infiltration tank which can continuously and effectively carry out biological treatment on village and town sewage and improve the quality of effluent.
In order to achieve the purpose, the invention adopts the following technical scheme: a village and town sewage infiltration tank comprises a buried primary treatment tank, wherein a filler filter tank is arranged below the primary treatment tank, and a clean water tank is arranged below the filler filter tank; the primary treatment tank comprises a hydrolysis acidification tank, an aeration tank and a clarification tank, the hydrolysis acidification tank is communicated with the aeration tank, the aeration tank is communicated with the clarification tank, the clarification tank is communicated with the filler filter tank, and biological fillers are filled in the filler filter tank.
Optionally, the primary treatment tank further comprises a water collecting tank communicated with the upper part of the clarification tank, a water distribution cavity is arranged between the primary treatment tank and the filler filter tank, a siphon is arranged between the water collecting tank and the water distribution cavity, and a water outlet of the siphon is connected with a water distributor.
Optionally, the primary treatment tank includes an inner cylinder and an outer cylinder which are coaxially arranged, the inner cylinder forms the hydrolysis acidification tank, a water inlet pipe is connected between the hydrolysis acidification tank and a sewage source, a partition board is arranged in an annular region between the inner cylinder and the outer cylinder, and the partition board divides the annular region into the aeration tank, the clarification tank and the water collection tank.
Optionally, a slope plate is arranged in the clarification tank, and a sludge reflux pump is arranged between the lower end of the slope plate and the upper part of the aeration tank.
Optionally, a baffle is obliquely arranged on the inner wall of the inner cylinder upwards.
Optionally, the filler filter tank is divided into an aerobic layer and an anoxic anaerobic layer from top to bottom, and an aeration device is arranged in the aerobic layer.
Optionally, a shunt pipe is arranged in the aerobic layer, and extends from the upper end surface of the aerobic layer to the upper end surface of the anoxic anaerobic layer.
Optionally, the filler filter tank comprises a supporting grid plate, a cobble layer is arranged on the supporting grid plate, and the biological filler is arranged on the cobble layer.
Optionally, a lift pump is arranged at the lower part of the clean water tank, and the lift pump is electrically connected with a float switch.
Optionally, a grid cover plate is arranged above the primary treatment tank, a porous adsorption light material is arranged on the grid cover plate, and aquatic plants are planted on the porous adsorption light material.
Compared with the prior art, the device has the advantages that the whole device adopts a buried structure, so that the interference of the external environment temperature is avoided, the normal circulation of sewage is ensured to be treated, and meanwhile, the proper growth temperature is provided for microorganisms underground; the device adopts an integrated structure from top to bottom, and sequentially performs hydrolytic acidification, aerobic, anoxic and anaerobic treatment on the sewage, so that the effects of removing organic matters and nitrogen and phosphorus from the sewage are improved; and the system has high automatic integration degree, higher reliability, low input cost and strong applicability in village and town areas, and can adapt to the drainage characteristic of small change of the sewage quantity of villages and towns.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view showing the communication among the aeration tank, the clarification tank and the water collecting tank.
Reference numerals:
1. an inner barrel; 2. an outer cylinder; 3. a water inlet pipe; 4. a partition plate; 5. a ramp plate; 6. a sludge reflux pump; 7. a baffle plate; 8. a grid cover plate; 10. a primary treatment tank; 11. a hydrolysis acidification pool; 12. an aeration tank; 13. a clarification tank; 14. a water collecting tank; 20. a filler filter chamber; 21. an aerobic layer; 22. an anoxic anaerobic layer; 23. an aeration device; 24. a water diversion pipe; 25. a cobble layer; 26. supporting the grate plate; 30. a clear water tank; 31. a lift pump; 32. a float switch; 40. a water distribution cavity; 41. a siphon tube; 42. a water distributor.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1 to 3, the invention provides a village and town sewage infiltration tank, which comprises a buried primary treatment tank 10, wherein a filler filter tank 20 is arranged below the primary treatment tank 10, and a clear water tank 30 is arranged below the filler filter tank 20; the primary treatment tank 10 comprises a hydrolysis acidification tank 11, an aeration tank 12 and a clarification tank 13, wherein the hydrolysis acidification tank 11 is communicated with the aeration tank 12, the aeration tank 12 is communicated with the clarification tank 13, the clarification tank 13 is communicated with a filler filter tank 20, and biological fillers are filled in the filler filter tank 20.
The sewage is firstly introduced into a hydrolysis acidification tank 11 for reaction, insoluble organic matters are hydrolyzed into soluble substances, macromolecular substances which are difficult to biodegrade are converted into substances which are easy to biodegrade, a carbon source is provided for microorganisms, supernatant liquid of the hydrolysis acidification tank 11 enters an aeration tank 12 for full aerobic biological reaction, after the organic matters are further removed, the sewage enters a clarification tank 13 for further sludge removal, along with gradual reduction of oxygen content, the sewage flows out of the clarification tank 13 from top to bottom and passes through a filler filter tank 20 to generate anoxic biological reaction and anaerobic biological reaction, further nitrogen and phosphorus removal is carried out, and finally the treated sewage is discharged to a water purification tank 30; the aeration tank 12 does not need to be opened normally, and certain drop oxygenation can occur in the process that the supernatant liquid of the hydrolysis acidification tank 11 enters the aeration tank 12;
compared with the prior art, this application device wholly adopts to bury formula structure, has avoided external environment temperature's interference, ensures that sewage normally circulates by handling, and the underground provides suitable growth temperature for the microorganism simultaneously, and this application device top-down has adopted the structure of integral type, carries out hydrolytic acidification, good oxygen, oxygen deficiency and anaerobic treatment in proper order to sewage, has promoted getting rid of organic matter and nitrogen and phosphorus removal effect to sewage.
In some embodiments, as shown in fig. 1 to 3, the primary treatment tank 10 further includes a water collection tank 14 communicated with an upper portion of the clarification tank 13, a water distribution chamber 40 is disposed between the primary treatment tank 10 and the filler filter 20, a siphon 41 is disposed between the water collection tank 14 and the water distribution chamber 40, and a water distributor 42 is connected to a water outlet of the siphon 41. A water collecting tank 14 is further arranged behind the clarification tank 13, sludge in the sewage is precipitated to the lower part of the clarification tank 13, and the upper layer of the sewage flows into the water collecting tank 14, so that the sludge concentration of the sewage from the primary treatment tank 10 to the filler filter tank 20 is controlled, and the effluent is ensured to be clean; the siphon 41 is disposed in the water collecting tank 14, the lower end of the siphon 41 extends downwards into the water distribution chamber 40, when the liquid level of the water collecting tank 14 reaches a certain height, the sewage automatically flows into the water distributor 42 through the siphon 41, and then is uniformly sprinkled above the filler filter tank 20 through the water distributor 42, the water distributor 42 adopts a form similar to a sprinkler head, and if necessary, a driving device can be added to rotate the water distributor 42 to achieve the purpose of uniform water distribution, which is a conventional technical means that can be realized by those skilled in the art, and the automatic intermittent uniform water distribution is realized through the arrangement.
In some embodiments, as shown in fig. 1 to 3, the primary treatment tank 10 includes an inner tank 1 and an outer tank 2 which are coaxially arranged, the inner tank 1 forms a hydrolysis-acidification tank 11, a water inlet pipe 3 is connected between the hydrolysis-acidification tank 11 and a sewage source, the lower end of the water inlet pipe 3 extends to the lower part of the hydrolysis-acidification tank 11, sewage flows into the hydrolysis-acidification tank 11 from the lower end of the water inlet pipe 3, the sewage flows from the bottom to the top and then flows into an aeration tank 12 from the upper part, sludge is deposited to the lower part of the hydrolysis-acidification tank 11 for hydrolysis-acidification, a partition plate 4 is arranged in an annular region between the inner tank 1 and the outer tank 2, the partition plate 4 divides the annular region into the aeration tank 12, a clarification tank 13 and a water collection tank 14, the sewage flows into the clarification tank 13 from the lower part of the aeration tank 12, a triangular weir is arranged at the upper end of the partition plate 4 between the clarification tank 13 and the water collection, the sludge is settled to the lower part of the clarification tank 13, and the oxygen content of the sewage is gradually reduced in the process from the clarification tank 13 to the water collecting tank 14, so that a certain denitrification effect can be generated in the sewage, and the nitrogen can be further removed; the primary treatment tank 10 is divided into a plurality of tank bodies through the arrangement of the inner cylinder 1, the outer cylinder 2 and the partition plates 4, hydrolytic acidification, aerobic treatment, clarification and certain denitrification are sequentially realized, the underground space is reasonably utilized in the arrangement mode, excessive land excavation is avoided, and waste of land resources is avoided.
In some embodiments, as shown in fig. 1, a slope plate 5 is arranged in the clarification tank 13, the slope plate 5 is arranged to facilitate sludge accumulation, as a preferred scheme, a water through opening is arranged at the lower part of the partition plate 4 between the aeration tank 12 and the clarification tank 13, the high-position end of the slope plate 5 is positioned below the water through opening, the low-position end of the slope plate 5 extends to the bottom wall of the clarification tank 13, sewage flows from bottom to top after entering the clarification tank 13 from the water through opening, sludge directly slides downwards along the slope plate 5 below the water through opening to accumulate, a sludge reflux pump 6 is arranged between the low-position end position of the slope plate 5 and the upper part of the aeration tank 12, the aeration tank 12 is supplemented with microorganisms through the sludge reflux pump 6 to improve the removal effect on organic matters, and excess sludge should be discharged as excess sludge; as shown in figure 3, the slope plate 5 can adopt another arrangement form, the low-level end of the slope plate 5 is positioned at the water through hole, the high-level end of the slope plate 5 extends to the partition plate 4 between the clarification tank 13 and the water collecting tank 14, after sewage enters the clarification tank 13 from the water through hole, sludge is directly blocked by the slope plate 5, and the sludge is directly precipitated to the lower parts of the aeration tank 12 and the clarification tank 13.
In some embodiments, as shown in fig. 1, the inner wall of the inner drum 1 is provided with baffles 7 obliquely upwards. The shape of baffle 7 can adopt the back taper structure, and sewage flows from bottom to top after 11 bottoms diffusion of hydrolytic acidification ponds, and baffle 7 does benefit to the breakage and the sediment of big particulate matter, ensures that the mud of 11 lower parts of hydrolytic acidification ponds can be stable by the gathering.
In some embodiments, as shown in fig. 1, the packed filter 20 is divided into an aerobic layer 21 and an anoxic anaerobic layer 22 from top to bottom, and an aeration device 23 is disposed in the aerobic layer 21. After the sewage is precipitated and subjected to certain denitrification through the clarification tank 13 and the water collecting tank 14, the sewage is uniformly sprayed to the aerobic layer 21, the sewage is subjected to aerobic biological reaction through the aerobic layer 21 to remove organic matters, and then the sewage is subjected to anoxic biological reaction and anaerobic biological reaction through the anoxic anaerobic layer 22 to further remove nitrogen and phosphorus.
In some embodiments, as shown in fig. 1, a shunt pipe 24 is disposed within the aerobic layer 21, the shunt pipe 24 extending from the upper end surface of the aerobic layer 21 to the upper end surface of the anoxic anaerobic layer 22. Sewage in a certain proportion directly enters the anoxic anaerobic layer 22 through the water distribution pipe 24, so that a carbon source can be provided for anoxic and aerobic organisms of the anoxic anaerobic layer 22, and nitrogen and phosphorus removal is facilitated; according to the sewage with different carbon-nitrogen ratios, the water distribution pipes 24 with different quantities and different pipe diameters can be arranged, so that enough carbon sources can be provided for the anoxic anaerobic layer 22.
In some embodiments, as shown in fig. 1, the filler filter 20 includes a support grid plate 26, a cobble layer 25 is disposed on the support grid plate 26, the biological filler is disposed on the cobble layer 25, the biological filler in the filler filter 20 is one or more of ceramic particles, slag, zeolite, sponge iron, and bluestone, which are optionally combined, different fillers have different processing capacities for different pollutants, for example, zeolite has a certain function of physically removing ammonia nitrogen, sponge iron has a certain oxygen absorption function, and is suitable for removing total nitrogen in an anaerobic environment, and the particle size of the cobble layer 25 is larger than that of the biological filler, so that a certain overhead supporting effect is achieved, and sewage can smoothly flow downward after passing through the biological filler.
In some embodiments, as shown in fig. 1, a lift pump 31 is disposed at the lower portion of the clean water tank 30, the lift pump 31 is electrically connected to a float switch 32, when the clean water in the clean water tank 30 reaches a certain height, the float switch 32 floats to a certain height to send a control signal to the lift pump 31, the lift pump 31 operates to discharge the sewage in the clean water tank 30 to the outside of the percolation tank and then stops operating, the float switch 32 is not described herein, and it is a known technical means to be electrically connected to the lift pump 31 in a matching manner.
In some embodiments, as shown in fig. 1, a grating cover plate 8 is arranged above the primary treatment tank 10, and porous adsorption light-weight materials are arranged on the grating cover plate 8 and aquatic plants are planted on the porous adsorption light-weight materials. The root system of aquatic plants such as calamus or reed passes through 8 into waters of grid apron, and plant and porous absorption light material can reduce the stink, and the plant also can form certain ecological landscape, and the aforesaid is arranged abundant having utilized the occupation of land of this application infiltration pond, also further optimization the environment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a villages and small towns sewage infiltration pond which characterized in that: the device comprises a buried primary treatment tank (10), wherein a filler filter tank (20) is arranged below the primary treatment tank (10), and a clean water tank (30) is arranged below the filler filter tank (20); the primary treatment tank (10) comprises a hydrolysis acidification tank (11), an aeration tank (12) and a clarification tank (13), wherein the hydrolysis acidification tank (11) is communicated with the aeration tank (12), the aeration tank (12) is communicated with the clarification tank (13), the clarification tank (13) is communicated with the filler filter tank (20), and biological fillers are filled in the filler filter tank (20).
2. The village and town sewage infiltration pond of claim 1, wherein: the primary treatment tank (10) further comprises a water collecting tank (14) communicated with the upper part of the clarification tank (13), a water distribution cavity (40) is arranged between the primary treatment tank (10) and the filler filter tank (20), a siphon (41) is arranged between the water collecting tank (14) and the water distribution cavity (40), and a water outlet of the siphon (41) is connected with a water distributor (42).
3. The village and town sewage infiltration pond of claim 2, wherein: the primary treatment tank (10) comprises an inner cylinder (1) and an outer cylinder (2) which are coaxially arranged, the inner cylinder (1) forms the hydrolysis acidification tank (11), a water inlet pipe (3) is connected between the hydrolysis acidification tank (11) and a sewage source, a partition plate (4) is arranged in an annular area between the inner cylinder (1) and the outer cylinder (2), and the annular area is divided into the aeration tank (12), the clarification tank (13) and the water collecting tank (14) by the partition plate (4).
4. The village and town sewage infiltration pond of claim 3, wherein: a slope plate (5) is arranged in the clarification tank (13), and a sludge reflux pump (6) is arranged between the position of the low-position end of the slope plate (5) and the upper part of the aeration tank (12).
5. The village and town sewage infiltration pond of claim 3, wherein: and a baffle (7) is obliquely and upwards arranged on the inner wall of the inner cylinder (1).
6. The village and town sewage infiltration pond of claim 1, wherein: the filler filter (20) is divided into an aerobic layer (21) and an anoxic anaerobic layer (22) from top to bottom, and an aeration device (23) is arranged in the aerobic layer (21).
7. The village and town sewage infiltration pond of claim 6, wherein: be provided with distributive pipe (24) in aerobic layer (21), distributive pipe (24) certainly the up end of aerobic layer (21) extends to the up end of oxygen deficiency anaerobic layer (22).
8. The village and town sewage infiltration pond of claim 6, wherein: the filler filter (20) comprises a supporting grid plate (26), a cobble layer (25) is arranged on the supporting grid plate (26), and the biological filler is arranged on the cobble layer (25).
9. The village and town sewage infiltration pond of claim 1, wherein: the lower part of the clean water tank (30) is provided with a lift pump (31), and the lift pump (31) is electrically connected with a float switch (32).
10. The village and town sewage infiltration pond of claim 1, wherein: a grid cover plate (8) is arranged above the primary treatment tank (10), a porous adsorption light material is arranged on the grid cover plate (8), and aquatic plants are planted on the porous adsorption light material.
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| CN112299671A (en) * | 2020-11-27 | 2021-02-02 | 西安建筑科技大学 | System and method for treating and recycling rural sewage or black and odorous water body |
| CN114349267A (en) * | 2021-12-17 | 2022-04-15 | 江西零真生态环境集团有限公司 | AO coupling biological filter domestic sewage treatment system and process |
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