CN215365360U - System for treating rural domestic sewage by utilizing A2O + modified filter material biological filter - Google Patents
System for treating rural domestic sewage by utilizing A2O + modified filter material biological filter Download PDFInfo
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- CN215365360U CN215365360U CN202121495963.5U CN202121495963U CN215365360U CN 215365360 U CN215365360 U CN 215365360U CN 202121495963 U CN202121495963 U CN 202121495963U CN 215365360 U CN215365360 U CN 215365360U
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Abstract
The utility model discloses a system for treating rural domestic sewage by utilizing an A2O + modified filter material biological filter, belongs to the field of sewage treatment, and aims to solve the problem of water environment pollution caused by the fact that rural domestic sewage does not meet discharge standards. Comprises an A/A/O integrated device and a biological filter. The functions of slag separation, biochemical treatment, clarification and the like are integrated, all complex domestic drainage is treated simultaneously by adopting the processes of A/A/O, biological contact oxidation and the like, the biological filter tank deeply removes nitrogen and phosphorus, the growth and reproduction conditions of dominant microorganisms are good, the biochemical removal rate is high, the flow of a sewage medium is carried out by utilizing the liquid level difference, the operation energy consumption in the sewage treatment process is saved, and the system is simple to maintain.
Description
Technical Field
The utility model belongs to the field of sewage treatment, and particularly relates to a rural domestic sewage treatment system by utilizing an A2O + modified filter material biofilter.
Background
The construction of beautiful villages is an important component of the construction of new rural areas. Rural domestic sewage can cause water pollution on the one hand, and on the other hand, water resource shortage is also aggravated. The rural domestic sewage is treated, the living environment of the rural domestic sewage can be improved, the water pollution of a drainage basin and the eutrophication of lakes can be controlled, the water environment is improved, and meanwhile, the treated reclaimed water is used for agricultural irrigation and can relieve the shortage of agricultural water. The treatment of rural domestic sewage has important significance for building beautiful villages, so that a diversified rural domestic sewage treatment system suitable for China is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a system for treating rural domestic sewage by using an A2O + modified filter material biofilter, which aims to solve the problem of water environment pollution caused by the fact that rural domestic sewage does not meet discharge standards, and the sewage can be used for irrigation after being treated, so that the shortage of agricultural water is relieved. The technical scheme adopted by the utility model is as follows:
a rural domestic sewage treatment system utilizing an A2O + modified filter material biological filter comprises an A/A/O integrated device and a biological filter communicated with the A/A/O integrated device; the A/A/O integrated equipment comprises an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation and clarification tank and a sludge tank which are sequentially communicated, and also comprises a stirring air pipe and a return pipeline; the stirring air pipe provides the air for oxygen deficiency groove and good oxygen groove, and the adjustment tank is equipped with the sewage import, and the sludge impoundment is equipped with mud outward transport export, deposits the clarification tank and communicates with biological filter, and the return line communicates good oxygen groove, anaerobism groove and oxygen deficiency groove respectively.
Furthermore, the adjusting tank is provided with a sewage inlet and a solid-liquid separation device, and solid particles in the sewage are primarily filtered.
Furthermore, composite biological filler is laid at the bottom of the anaerobic tank, the circulating water dissolved oxygen reduction component is vertically arranged, the circulating water dissolved oxygen reduction component is a straight pipe with one end provided with a flocculent net-shaped circulating water filtering device, the bottom of the circulating water dissolved oxygen reduction component is inserted into the composite biological filler, the top of the circulating water dissolved oxygen reduction component is connected with the outlet of the anaerobic tank of the return pipeline, and the top of the circulating water dissolved oxygen reduction component is provided with the circulating water filtering device.
Furthermore, the composite biological filler consists of an inorganic filler layer and an organic filler layer, wherein the inorganic filler layer is prepared by mixing zeolite and expanded vermiculite according to a ratio of 1:1, and the organic filler layer is a polyhedral hollow sphere organic filler.
Furthermore, a PP elastic filter material is arranged in the anoxic tank, a first perforated aeration pipe is arranged below the PP elastic filter material, the anoxic tank is connected with an anoxic tank outlet of the return pipeline and a stirring air pipe, and air supply of the stirring air pipe has a stirring function on the anoxic tank.
Furthermore, a PP elastic filter material is arranged in the aerobic tank, a second perforated aeration pipe is arranged below the PP elastic filter material, the aerobic tank is connected with the inlet of the return pipeline and the stirring air pipe, and the air supply of the stirring air pipe has a stirring function on the aerobic tank.
Furthermore, a shallow pond sedimentation inclined plate group is arranged in the sedimentation clarification tank, and each inclined plate of the shallow pond sedimentation inclined plate group is vertically arranged.
Further, the sludge tank is provided with a sludge outward conveying outlet.
Further, the biological filter comprises a first cavity lattice, a second cavity lattice and a third cavity lattice which are sequentially communicated; the first cavity lattice is communicated with the settling tank, the third cavity lattice is provided with a reclaimed water outlet, and modified filter materials are arranged in the first cavity lattice and the second cavity lattice.
Furthermore, the modified filter material is a zeolite filter material, and an iron coating is arranged on the surface of the zeolite filter material.
Further, sewage flows through the regulating tank, the anaerobic tank, the anoxic tank, the aerobic tank, the sedimentation clarifying tank, the first cavity lattice, the second cavity lattice and the third cavity lattice in sequence by utilizing the liquid level difference.
The utility model has the following beneficial effects:
the functions of slag separation, biochemical treatment, clarification and the like are integrated, all complex domestic drainage is treated simultaneously by adopting the processes of A/A/O, biological contact oxidation and the like, the biological filter tank deeply removes nitrogen and phosphorus, the growth and reproduction conditions of dominant microorganisms are good, the biochemical removal rate is high, the flow of a sewage medium is carried out by utilizing the liquid level difference, the operation energy consumption in the sewage treatment process is saved, and the system is simple to maintain.
Drawings
Figure 1 is a schematic view of the structure of the present invention,
in the figure: 1 adjusting tank, 1-1 solid-liquid separation device, 1-2 sewage inlet, 2 anaerobic tank, 2-1 circulating water-soluble oxygen decrement component, 2-11 circulating water filtering device, 2-2 composite biological filler, 3 anoxic tank, 3-1PP elastic filter material, 3-2 first perforated aeration pipe, 4 aerobic tank, 4-2 second perforated aeration pipe, 5 sedimentation clarification tank, 5-1 shallow pool sedimentation inclined plate group, 6 sludge tank, 6-1 sludge outward transportation outlet, 7 stirring air pipe, 8 reflux pipeline, 9 first cavity grid, 9-1 modified filter material, 10 second cavity grid, 11 third cavity grid and 11-1 reclaimed water outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and the following examples are illustrative of the present invention, but the present invention is not limited to the following examples.
As shown in the figure, the rural domestic sewage treatment system utilizing the A2O + modified filter material biological filter comprises an A/A/O integrated device and a biological filter communicated with the A/A/O integrated device; the A/A/O integrated equipment comprises an adjusting tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4, a sedimentation and clarification tank 5 and a sludge tank 6 which are sequentially communicated, and further comprises a stirring air pipe 7 and a return pipeline 8; the stirring air pipe 7 provides air for the anoxic tank 3 and the aerobic tank 4, the adjusting tank 1 is provided with a sewage inlet 1-2, the sludge tank 6 is provided with a sludge outward conveying outlet 6-1, and the return pipeline 8 is respectively communicated with the aerobic tank 4, the anaerobic tank 2 and the anoxic tank 3.
Further, the adjusting tank 1 is provided with a sewage inlet 1-2 and a solid-liquid separation device 1-1, and solid particles in the sewage are primarily filtered.
Further, composite biological filler 2-2 is laid at the bottom of the anaerobic tank 2, a circulating water-soluble oxygen reduction component 2-1 is vertically arranged, the bottom of the circulating water-soluble oxygen reduction component 2-1 is inserted into the composite biological filler 2-2, the top of the circulating water-soluble oxygen reduction component 2-1 is connected with an anaerobic tank outlet of a return pipeline 8, and a circulating water filtering device 2-11 is arranged at the top of the circulating water-soluble oxygen reduction component 2-1.
Further, the composite biological filler 2-2 consists of an inorganic filler layer and an organic filler layer, wherein the inorganic filler layer is prepared by mixing zeolite and expanded vermiculite according to a ratio of 1:1, and the organic filler layer is a polyhedral hollow sphere organic filler.
Further, a PP elastic filter material 3-1 is arranged in the anoxic tank 3, a first perforated aeration pipe 3-2 is arranged below the PP elastic filter material 3-1, the anoxic tank 3 is connected with an anoxic tank outlet of the return pipeline 8 and a stirring air pipe 7, and air supplied by the stirring air pipe 7 has a stirring function on the anoxic tank 3.
Further, a PP elastic filter material 3-1 is arranged in the aerobic tank 4, a second perforated aeration pipe 4-2 is arranged below the PP elastic filter material 3-1, the aerobic tank 4 is connected with an inlet of the return pipeline 8 and a stirring air pipe 7, and air supplied by the stirring air pipe 7 has a stirring function on the aerobic tank 4.
Further, a shallow pond sedimentation inclined plate group 5-1 is arranged in the sedimentation clarification tank 5, and each inclined plate of the shallow pond sedimentation inclined plate group 5-1 is vertically arranged.
Further, the sludge tank is provided with a sludge outward conveying outlet 6-1.
Further, the biological filter comprises a first cavity lattice 9, a second cavity lattice 10 and a third cavity lattice 11 which are sequentially communicated; the first cavity lattice 9 is communicated with the sedimentation clarifying tank 5, the third cavity lattice 11 is provided with a reclaimed water outlet 11-1, and modified filter materials 9-1 are arranged in the first cavity lattice 9 and the second cavity lattice 10.
Further, the modified filter material 9-1 is a zeolite filter material, and an iron coating is arranged on the surface of the zeolite filter material.
Further, sewage flows through the regulating tank 1, the anaerobic tank 2, the anoxic tank 3, the aerobic tank 4, the sedimentation and clarification tank 5, the first cavity lattice 9, the second cavity lattice 10 and the third cavity lattice 11 in sequence by utilizing the liquid level difference.
The utility model relates to a rural domestic sewage system efficiently and stably removed by utilizing an A2O + modified filter material biofilter combination, which integrates the functions of slag separation, biochemical treatment, clarification and the like, adopts the processes of A/A/O, biological contact oxidation and the like to simultaneously treat all complex domestic drainage, and then deeply removes nitrogen and phosphorus through a biofilter, so that the effluent quality reaches the required discharge standard. The domestic sewage pretreated by the septic tank is subjected to anaerobic-aerobic reaction, and the filler of the anaerobic tank and the aeration system of the aerobic tank are specially designed, so that the effluent is further subjected to nitrogen and phosphorus removal by the modified filter material biological filter, and a more ideal treatment effect is achieved. The rural domestic sewage treatment system adopts the liquid level difference to flow the sewage medium, saves the operation energy consumption in the sewage treatment process, is simple to maintain, and ensures that the effluent quality meets the discharge standard of rural domestic sewage.
The adjusting tank 1 is provided with a solid-liquid separation device 1-1, sewage is subjected to equalization adjustment treatment firstly, the content of inorganic particulate matters is reduced preliminarily, the water quantity and the water quality are stable, the identity and the biodegradability of the sewage are improved, and a stable and optimized operating condition is provided for a subsequent water treatment system.
The anaerobic tank 2 is internally provided with the composite biological filler 2-2, an inorganic filler layer prepared by mixing inorganic zeolite with good ammonia nitrogen adsorption and expanded vermiculite with good phosphate adsorption according to the proportion of 1:1 is connected with the polyhedral hollow sphere organic filler, a bridge of the inorganic filler and the organic filler is constructed, the performance optimization combination is realized, the composite biological filler is applied to the anaerobic tank 2, a place is provided for the propagation of microorganisms, the specific surface area of a biological membrane is greatly increased, and the biochemical treatment efficiency is improved.
The anaerobic tank 2 is internally provided with a circulating water dissolved oxygen decrement component 2-1, the circulating water dissolved oxygen decrement component 2-1 is a straight pipe with one end provided with a flocculent-net-shaped circulating water filtering device, and the flocculent-net-shaped circulating water filtering device 2-11 arranged at the top of the circulating water dissolved oxygen decrement component 2-1 can gradually achieve the effect of dissolved oxygen decrement in the process that backflow water flows through the backflow pipeline 8, so that when the backflow water reaches the bottom of the anaerobic tank 2, the trace dissolved oxygen content in the backflow sewage can not influence the anaerobic environment of the backflow sewage. Besides, the composition can also adsorb suspended matters in the reflux nitrifying liquid.
The perforated aeration pipes arranged in the anoxic tank 3 and the aerobic tank 4 uniformly distribute and release air bubbles, so that the oxygen utilization rate can be effectively improved. Is suitable for the biological treatment facilities of water supply and drainage needing gas supply so as to provide oxygen required by microorganisms growing on activated sludge in the facilities.
In the shallow tank sedimentation process adopted by the sedimentation tank 5, the inclined plate is vertically arranged, and the separation mode of the clear water of the sedimentation tank 5 and the water discharged from the aerobic tank 4 is vertical separation, so that the sludge is prevented from being deposited on the inclined plate, and the quick separation of mud and water is realized. The surface of the sedimentation tank is completely provided with aerobic tank effluent, and the aerobic tank effluent enters the inclined plate space from the inclined plate water inlet which is vertically arranged, mud and water are separated in the inclined plate space, the sludge slides down to a sludge accumulation area at the bottom of the sedimentation tank through the inclined plate surface, and supernatant flows out of the inclined plate and enters the biological filter.
The modified filter material 9-1 in the biological filter tank is prepared by coating iron on the surface of a zeolite filter material, changes the physical and chemical properties of the surface of the original filter material particles, has better dirt intercepting capability, particularly obviously improves the removal of phosphorus, has strong pertinence and high absorption efficiency, and simultaneously has the function of reducing COD and SS.
The stirring air pipe provides air for the anoxic tank 3 and the aerobic tank 4, and the removal efficiency of pollutants in water is improved. Not only saves the occupied area, but also has simple operation and maintenance.
The above embodiments are merely illustrative of the present patent and do not limit the scope of the patent, and those skilled in the art can make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (9)
1. Utilize A2O + modified filter material biological filter to handle rural domestic sewage system, its characterized in that: comprises A/A/O integrated equipment and a biological filter communicated with the A/A/O integrated equipment; the A/A/O integrated equipment comprises an adjusting tank (1), an anaerobic tank (2), an anoxic tank (3), an aerobic tank (4), a settling tank (5) and a sludge tank (6) which are sequentially communicated, and further comprises a stirring air pipe (7) and a return pipeline (8); the stirring air pipe (7) provides air for the anoxic tank (3) and the aerobic tank (4), the sedimentation and clarification tank (5) is communicated with the biological filter, and the return pipeline (8) is respectively communicated with the aerobic tank (4), the anaerobic tank (2) and the anoxic tank (3).
2. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 1, wherein: the adjusting tank (1) is provided with a solid-liquid separation device (1-1) and a sewage inlet (1-2).
3. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 2, wherein: the composite biological filler (2-2) is laid at the bottom of the anaerobic tank (2), the circulating water dissolved oxygen reduction component (2-1) is vertically arranged, the bottom of the circulating water dissolved oxygen reduction component (2-1) is inserted into the composite biological filler (2-2), the top of the circulating water dissolved oxygen reduction component (2-1) is connected with an anaerobic tank outlet of the return pipeline (8), and the top of the circulating water dissolved oxygen reduction component (2-1) is provided with a circulating water filtering device (2-11).
4. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 3, wherein: the anaerobic tank (3) is internally provided with a PP elastic filter material (3-1), a first perforated aeration pipe (3-2) is arranged below the PP elastic filter material (3-1), and the anaerobic tank (3) is connected with an anaerobic tank outlet of a return pipeline (8) and a stirring air pipe (7).
5. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 4, wherein: a PP elastic filter material (3-1) is arranged in the aerobic tank (4), a second perforated aeration pipe (4-2) is arranged below the PP elastic filter material (3-1), and the aerobic tank (4) is connected with an inlet of a return pipeline (8) and a stirring air pipe (7).
6. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to any one of claims 1 to 5, wherein: the settling clarification tank (5) is internally provided with a shallow pool settling inclined plate group (5-1), and each inclined plate of the shallow pool settling inclined plate group (5-1) is vertically arranged.
7. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 1, wherein: the biological filter comprises a first cavity lattice (9), a second cavity lattice (10) and a third cavity lattice (11) which are communicated in sequence; the first cavity lattice (9) is communicated with the settling and clarifying tank (5), the third cavity lattice (11) is provided with a reclaimed water outlet (11-1), and modified filter materials (9-1) are arranged in the first cavity lattice (9) and the second cavity lattice (10).
8. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 7, wherein: the modified filter material (9-1) is a zeolite filter material, and an iron coating is arranged on the surface of the zeolite filter material.
9. The system for treating rural domestic sewage by using the A2O + modified filter material biofilter according to claim 7 or 8, wherein: sewage flows through the regulating tank (1), the anaerobic tank (2), the anoxic tank (3), the aerobic tank (4), the sedimentation clarifying tank (5), the first cavity lattice (9), the second cavity lattice (10) and the third cavity lattice (11) in sequence by utilizing liquid level difference.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121495963.5U CN215365360U (en) | 2021-07-02 | 2021-07-02 | System for treating rural domestic sewage by utilizing A2O + modified filter material biological filter |
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| CN202121495963.5U CN215365360U (en) | 2021-07-02 | 2021-07-02 | System for treating rural domestic sewage by utilizing A2O + modified filter material biological filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246676A (en) * | 2022-07-01 | 2022-10-28 | 北京新城禹潞环保科技有限责任公司 | Gravity type small sewage treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246676A (en) * | 2022-07-01 | 2022-10-28 | 北京新城禹潞环保科技有限责任公司 | Gravity type small sewage treatment equipment |
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