CN112374610B - Biological ecological coupling rural sewage treatment equipment - Google Patents
Biological ecological coupling rural sewage treatment equipment Download PDFInfo
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- CN112374610B CN112374610B CN202011262632.7A CN202011262632A CN112374610B CN 112374610 B CN112374610 B CN 112374610B CN 202011262632 A CN202011262632 A CN 202011262632A CN 112374610 B CN112374610 B CN 112374610B
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- 239000010865 sewage Substances 0.000 title claims abstract description 41
- 230000008878 coupling Effects 0.000 title claims abstract description 12
- 238000010168 coupling process Methods 0.000 title claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 12
- 230000007062 hydrolysis Effects 0.000 claims abstract description 69
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 239000002121 nanofiber Substances 0.000 claims abstract description 8
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 7
- 238000010992 reflux Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 7
- 229910052760 oxygen Inorganic materials 0.000 claims 7
- 239000001301 oxygen Substances 0.000 claims 7
- 206010021143 Hypoxia Diseases 0.000 claims 5
- 239000000969 carrier Substances 0.000 abstract description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 239000011574 phosphorus Substances 0.000 abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 5
- 239000011149 active material Substances 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 239000011593 sulfur Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 10
- 238000012856 packing Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses biological ecological coupling rural sewage treatment equipment which is sequentially provided with a hydrolysis tank, a primary anoxic tank, a primary aerobic tank, a secondary anoxic tank, a secondary aerobic tank, a sedimentation tank and an ecological tank from left to right. According to the biological ecological coupling rural sewage treatment equipment, the hydrolysis tank is divided into two tanks, intermittent centralized water inflow can be realized, the condition that primary water inflow cannot penetrate through the hydrolysis unit is ensured, polyurethane sponge biological carriers, nanofiber carriers, scrap iron carriers and sulfur particles are loaded in anoxic tank fillers, biological denitrification effect is enhanced for rural domestic sewage with low carbon-nitrogen ratio, meanwhile, multi-point sectional water inflow is realized, carbon sources in water are fully utilized for denitrification, the ecological tank further removes nitrogen and phosphorus by utilizing aquatic plants, suspended matters in water are intercepted, and the plastic grid filler layer is used for fixing root systems of the aquatic plants; the surface of the modified ceramsite is loaded with an active material, so that the adsorption and interception of phosphorus are enhanced; the water distribution gravel layer is used as a cushion layer for supporting the modified ceramsite and uniformly distributing water.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to biological ecological coupling rural sewage treatment equipment.
Background
With the continuous development of rural economy and the continuous improvement of the requirements of people on the quality of rural living environment, the new rural construction advanced by each level of government step by step greatly improves the living environment of farmers. But the problems of contradiction between the relative lag of infrastructure construction in rural areas and the pollution of rural scattered point source water are increasingly outstanding, and the problem of rural water environment pollution is solved. The selection and the use of the rural sewage treatment technology are restricted by various factors such as regional economic conditions, climate conditions, village land resources and the like, the rural sewage treatment technology with low development investment, small occupied area, stable and reliable treatment water quality, low running cost and simple operation is an important development trend in the current water treatment field, and meanwhile, the rural area restricts the development of the rural sewage treatment technology due to lack of technicians and weak economic strength. Especially in rural areas, sewage treatment facilities are lacking, and rural domestic sewage is relatively low in carbon nitrogen ratio and has certain differences with urban sewage, so that corresponding differences exist in treatment modes, the treatment effect is poor and the mode is inflexible in the prior art of denitrification and dephosphorization, and aiming at the defects, it is necessary to design a biological ecological coupling rural sewage treatment device.
Disclosure of Invention
The invention aims to provide biological ecological coupling rural sewage treatment equipment which has the advantages of multi-format design, flexible operation mode and good treatment effect and can solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the biological ecological coupling rural sewage treatment equipment comprises a first hydrolysis tank, wherein a first water inlet is formed in the middle of the left side of the first hydrolysis tank, a second hydrolysis tank is arranged on the right side of the first hydrolysis tank, water passing pipes penetrate through the middle of the right sides of the first hydrolysis tank and the second hydrolysis tank, a flow guide pipe is arranged in the second hydrolysis tank, the flow guide pipe in the second hydrolysis tank is communicated with the water passing pipe in the first hydrolysis tank, a first-stage anoxic tank is arranged on the right side of the second hydrolysis tank, a flow guide pipe is arranged in the first-stage anoxic tank, the flow guide pipe in the first-stage anoxic tank is communicated with the water passing pipe in the second hydrolysis tank, a first-stage first aerobic tank and a first-stage second aerobic tank are sequentially arranged on the right side of the first-stage anoxic tank, flow guide pipes are respectively arranged in the first-stage first aerobic tank and the first-stage second aerobic tank, two flow guide pipes are respectively communicated with the upper parts of the tanks on the adjacent left sides of the first hydrolysis tank, the right of the first-stage second aerobic tank is provided with a second-stage anoxic tank, the inside of the second-stage anoxic tank is provided with a flow guide pipe, the flow guide pipe is communicated with the upper part of the first-stage second aerobic tank, the upper part of the flow guide pipe in the inside of the second-stage anoxic tank is also provided with a second water inlet, the right of the second-stage anoxic tank is sequentially provided with a second-stage first aerobic tank, a second-stage second aerobic tank and a second-stage third aerobic tank, the inside of the second-stage first aerobic tank, the inside of the second-stage second aerobic tank and the inside of the second-stage third aerobic tank are respectively provided with a flow guide pipe, the three flow guide pipes are communicated with the upper part of the tank adjacent to the left side of the tank, the right of the second-stage third aerobic tank is provided with a sedimentation tank, the flow guide pipe is communicated with the upper part of the second-stage third aerobic tank, the right side of the sedimentation tank is communicated with an ecological tank, the bottom of the sedimentation tank is connected with the bottom of the first hydrolysis tank and the bottom of the second hydrolysis tank through pipelines, and a sludge reflux pump is arranged on the pipelines.
Preferably, the bottoms of the first hydrolysis tank and the second hydrolysis tank are respectively provided with a mud discharging port, and the top of the first hydrolysis tank and the second hydrolysis tank is provided with a slag discharging port.
Preferably, the first water inlet and the second water inlet are connected with a lifting pump through pipelines.
Preferably, the bottoms of the first-stage first aerobic tank, the first-stage second aerobic tank, the second-stage first aerobic tank, the second-stage second aerobic tank and the second-stage third aerobic tank are all connected with an aeration blower.
Preferably, the bottom of the second-stage third aerobic tank is communicated with the first-stage anoxic tank through a pipeline, and a mixed liquid reflux pump is arranged on the pipeline.
Preferably, the ecological tank is sequentially filled with the water distribution gravel layer, the modified ceramsite layer and the plastic grid filler layer in a layered manner from bottom to top.
Compared with the prior art, the invention has the following beneficial effects:
According to the biological ecological coupling rural sewage treatment equipment, when the hydrolysis tank is divided into two tanks and is arranged in an operation mode of intermittent concentrated water inlet, the primary water inlet is ensured to not penetrate through the hydrolysis unit, sewage enters a guide pipe from the upper position in the middle of an upstream hydrolysis tank and flows out from the lower position in the middle of a downstream unit, in order to avoid disturbance to top scum and bottom sediment, polyurethane sponge biological carriers and nanofiber carriers are loaded in the packing of the primary anoxic tank, scrap iron and sulfur particles are loaded in the secondary anoxic tank in addition to the polyurethane sponge biological carriers and the nanofiber carriers, for rural domestic sewage with low carbon-nitrogen ratio, the scrap iron and elemental sulfur promote the growth and enrichment of autotrophic denitrifying bacteria, the biological denitrification effect is enhanced, the ecological tank utilizes aquatic plants to further remove nitrogen and phosphorus, suspended matters in the water are intercepted, the sewage treated by the biological tank is deeply purified, a water distribution gravel layer (200 mm) is filled in layers from bottom to top, a modified ceramsite layer (600 mm) and a plastic packing layer (200 mm), and the plastic grid packing layer is used for fixing the root systems of the aquatic plants; the surface of the modified ceramsite is loaded with an active material, so that the adsorption and interception of phosphorus are enhanced; the water distribution gravel layer is used as a cushion layer for supporting the modified ceramsite and uniformly distributing water, and the sludge in the sedimentation tank is regularly returned to the hydrolysis tank, so that the microbial biomass is supplemented for the unit on one hand, and the anaerobic stabilization of the sludge is implemented on the other hand, and for rural domestic sewage with low carbon nitrogen ratio, the biological tank and the ecological tank are combined to greatly improve the denitrification and dephosphorization effects.
Drawings
FIG. 1 is a schematic diagram of a biological tank according to the present invention;
fig. 2 is a schematic view of the structure of the ecological tank of the present invention.
In the figure: 1. a first hydrolysis tank; 2. a second hydrolysis tank; 3. a primary anoxic tank; 4. a first-stage first aerobic tank; 5. a first-stage second aerobic tank; 6. a secondary anoxic tank; 7. a second-stage first aerobic tank; 8. a second-stage second aerobic tank; 9. a second-stage third aerobic tank; 10. a precipitation tank; 11. a mud discharging port; 12. a water passing pipe; 13. a sludge reflux pump; 14. a mixed liquid reflux pump; 15. a first water inlet; 16. a second water inlet; 17. an aeration blower; 18. a lift pump; 19. a slag outlet; 20. an ecological groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a biological ecological coupling rural sewage treatment device comprises a first hydrolysis tank 1, a first water inlet 15 is arranged in the middle of the left side of the first hydrolysis tank 1, a second hydrolysis tank 2 is arranged on the right side of the first hydrolysis tank 1, water passing pipes 12 penetrate through the middle of the right sides of the first hydrolysis tank 1 and the second hydrolysis tank 2, a flow guiding pipe is arranged in the second hydrolysis tank 2, the flow guiding pipe in the second hydrolysis tank 2 is communicated with the water passing pipe 12 in the first hydrolysis tank 1, sludge discharging openings 11 are formed in the bottoms of the first hydrolysis tank 1 and the second hydrolysis tank 2, slag discharging openings 19 are formed in the tops of the first hydrolysis tank 1 and the second hydrolysis tank 2, when the two tanks are arranged in an operation mode of intermittent concentrated water inlet, the primary water inlet cannot penetrate through a hydrolysis unit, sewage enters the flow guiding pipe from the upper position of the middle of the upstream hydrolysis tank, and flows out from the lower position of the middle of the downstream unit, and the design is used for avoiding disturbance to slag at the top and bottom. The right of the second hydrolysis tank 2 is provided with a first-stage anoxic tank 3, the inside of the first-stage anoxic tank 3 is provided with a flow guide pipe, the flow guide pipe in the first-stage anoxic tank 3 is communicated with a water passing pipe 12 in the second hydrolysis tank 2, the filler of the first-stage anoxic tank 3 is loaded with polyurethane sponge biological carriers and nanofiber carriers, the right of the first-stage anoxic tank 3 is sequentially provided with a first-stage aerobic tank 4 and a second-stage aerobic tank 5, the inside of the first-stage aerobic tank 4 and the second-stage aerobic tank 5 is provided with flow guide pipes, the two flow guide pipes are communicated with the upper parts of the tanks adjacent to the left side of the tank, the right of the first-stage second-stage anoxic tank 5 is provided with a second-stage anoxic tank 6, the inside of the second-stage anoxic tank 6 is provided with a flow guide pipe, the flow guide pipe is communicated with the upper part of the first-stage second-aerobic tank 5, the upper part of the flow guide pipe in the second-stage anoxic tank 6 is also provided with a second water inlet 16, the first water inlet 15 and the second water inlet 16 are connected with a lifting pump 18 through pipelines, besides polyurethane sponge biological carriers and nanofiber carriers, scrap iron and sulfur particles are loaded in the second anoxic tank 6, for rural domestic sewage with low carbon nitrogen ratio, the scrap iron and elemental sulfur promote the growth and enrichment of autotrophic denitrifying bacteria, the biological denitrification effect is enhanced, the right side of the second anoxic tank 6 is sequentially provided with a second first aerobic tank 7, a second aerobic tank 8 and a second third aerobic tank 9, the interiors of the second first aerobic tank 7, the second aerobic tank 8 and the second third aerobic tank 9 are respectively provided with a draft tube, the three draft tubes are communicated with the upper parts of the tanks adjacent to the left sides of the draft tubes, the bottoms of the first aerobic tank 4, the first second aerobic tank 5, the second first aerobic tank 7, the second aerobic tank 8 and the second third aerobic tank 9 are respectively connected with an aeration blower 17, the biological rope carrier made of modified fibers is arranged in the aerobic tank, biomass is increased, the bottom of the second-stage third aerobic tank 9 is communicated with the first-stage anoxic tank 3 through a pipeline, a mixed liquid reflux pump 14 is arranged on the pipeline, a sedimentation tank 10 is arranged on the right side of the second-stage third aerobic tank 9, a flow guide pipe is arranged in the sedimentation tank 10, the flow guide pipe is communicated with the upper part of the second-stage third aerobic tank 9, the right side of the sedimentation tank 10 is communicated with the ecological tank 20, the ecological tank 20 utilizes aquatic plants to further remove nitrogen and phosphorus, sewage treated by the biological tank is deeply purified, suspended matters in water are trapped, and the ecological tank 20 is filled with a water distribution gravel layer (200 mm), a modified ceramsite layer (600 mm) and a plastic grid filler layer (200 mm) in a layered mode from bottom to top. The plastic grid packing layer is used for fixing the root system of the aquatic plant; the surface of the modified ceramsite is loaded with an active material, so that the adsorption and interception of phosphorus are enhanced; the water distribution gravel layer is used as a cushion layer for supporting the modified ceramsite and uniformly distributing the modified ceramsite. The bottom of the precipitation tank 10 is connected with the bottom of the first hydrolysis tank 1 and the bottom of the second hydrolysis tank 2 through pipelines, and meanwhile, a sludge reflux pump 13 is arranged on the pipelines to regularly reflux the sludge in the precipitation tank 10 to the hydrolysis tank, so that microorganisms are supplemented for the unit on one hand, and anaerobic stabilization of the sludge is implemented on the other hand.
Working principle: the sewage is lifted from the regulating tank and enters the hydrolysis tank, particles in the sewage are precipitated in the hydrolysis tank to form sediment, light matters float upwards to form scum, and the sediment and the scum are discharged out of the system through regular suction. Organic matters in the sewage are hydrolyzed and acidified in the unit, the organic matters are converted into small molecular organic matters which are easy to biodegrade, the biodegradability of the sewage is improved, denitrification and denitrification are carried out on nitrate nitrogen in mixed liquid of an anoxic tank, organic matters in water discharged from the anoxic tank and sulfur in biological fillers, a biological rope carrier made of modified fibers is arranged in an aerobic tank, biomass is increased, nitrogen and phosphorus are further removed by utilizing aquatic plants in the ecological tank 20, phosphorus removal materials are attached to the surface of modified ceramsite, the adsorption and interception of phosphorus are enhanced, and suspended matters in water are intercepted.
To sum up, this biological ecological coupling's rural sewage treatment plant, the hydrolytic tank divide into two grooves and arranges when can adopt intermittent type formula of concentrating the operation mode of intaking, guarantee that once intaking can not penetrate hydrolysis unit, sewage gets into the honeycomb duct from the upper position in upper reaches hydrolytic tank middle part, it flows out from the lower position in middle part of low reaches unit, such design is in order to avoid causing the disturbance to top dross and bottom sediment, load polyurethane sponge biological carrier in the packing of first-level anoxic tank 3, the nanofiber carrier, in addition to load polyurethane sponge biological carrier in the second-level anoxic tank 6, nanofiber carrier, still load iron fillings and sulphur granule, for low carbon-nitrogen ratio's rural domestic sewage, the growth enrichment of autotrophy denitrifying fungus is promoted to iron fillings and elemental sulfur, biological denitrification effect is strengthened, ecological tank 20 utilizes the aquatic plant further to get rid of nitrogen phosphorus, sewage after biological tank handles carries out deep purification, the suspended solid in the interception water, ecological tank 20 loads the gravel layer (200 mm), modified ceramsite (600 mm) and plastics net packing layer (200 mm) from the bottom to top in layers. The plastic grid packing layer is used for fixing the root system of the aquatic plant; the surface of the modified ceramsite is loaded with an active material, so that the adsorption and interception of phosphorus are enhanced; the water distribution gravel layer is used as a cushion layer for supporting the modified ceramsite and uniformly distributing water, and the sludge in the sedimentation tank 10 is regularly returned to the hydrolysis tank, so that the microbial biomass is supplemented for the unit on one hand, and the anaerobic stabilization of the sludge is implemented on the other hand, and for rural domestic sewage with low carbon nitrogen ratio, the biological tank and the ecological tank are combined to greatly improve the denitrification and dephosphorization effects.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Biological ecological coupling's rural sewage treatment plant includes first hydrolytic tank (1), its characterized in that: the first hydrolysis tank (1) left side middle part is provided with first water inlet (15), the right of first hydrolysis tank (1) is provided with second hydrolysis tank (2), the middle part on the right of first hydrolysis tank (1) and second hydrolysis tank (2) all runs through there is water pipe (12), the inside honeycomb duct that is provided with of second hydrolysis tank (2), honeycomb duct in second hydrolysis tank (2) is linked together with water pipe (12) in first hydrolysis tank (1), the operation mode that the hydrolysis tank divide into two groove arrangements can adopt intermittent type concentrated water inlet, guarantee that primary water inlet can not pierce through hydrolysis unit, sewage gets into the honeycomb duct from the upper position in the middle part of upstream hydrolysis tank, flow out from the middle part lower position of downstream unit, avoid leading to the fact the disturbance to top dross and the sediment of bottom, the right of second hydrolysis tank (2) is provided with one-level anoxic tank (3), the honeycomb duct (12) in one-level anoxic tank (3) are linked together with water pipe (12) in second hydrolysis tank (1), anoxic tank (3) are linked together with each other, anoxic honeycomb duct (5) on the right side of first and aerobic tank (5) are located in proper order, the first anoxic tank (4) is located in the first and the first anoxic tank (5) on the right side of first and the first anoxic tank (5 on the right side of the first-stage, the first anoxic tank (5) are linked together in proper order, polyurethane sponge biological carrier, nanofiber carrier, iron fillings and sulphur granule are loaded in second grade oxygen deficiency groove (6), the inside honeycomb duct that is provided with of second grade oxygen deficiency groove (6), the honeycomb duct is linked together with the upper portion of the adjacent left groove in one-level second oxygen deficiency groove (5) thereof, the top of the inside honeycomb duct of second grade oxygen deficiency groove (6) still is equipped with second water inlet (16) simultaneously, the right side of second grade oxygen deficiency groove (6) has set gradually second first good oxygen groove (7), second good oxygen groove (8) of second grade and second good oxygen groove (9), second good oxygen groove (7), second good oxygen groove (8) of second grade and second good oxygen groove (9) are inside all to be equipped with the honeycomb duct, the three honeycomb duct is all linked together with the upper portion of the adjacent left groove in groove of its place, the right of second good oxygen groove (9) is provided with sedimentation groove (10), the inside honeycomb duct that is equipped with of sedimentation groove (10), the right side of sedimentation groove (10) is linked together with the upper portion of ecological groove (20), the bottom of the sedimentation groove (10) is equipped with the bottom of the first hydrolysis (1) of the second hydrolysis tank (2) simultaneously, the bottom of the hydrolysis pump (13) is equipped with.
2. The bio-ecologically coupled rural sewage treatment facility of claim 1 wherein: the bottoms of the first hydrolysis tank (1) and the second hydrolysis tank (2) are respectively provided with a mud discharge opening (11), and the top is provided with a slag outlet (19).
3. The bio-ecologically coupled rural sewage treatment facility of claim 1 wherein: the first water inlet (15) and the second water inlet (16) are connected with a lifting pump (18) through pipelines.
4. The bio-ecologically coupled rural sewage treatment facility of claim 1 wherein: the bottoms of the primary first aerobic tank (4), the primary second aerobic tank (5), the secondary first aerobic tank (7), the secondary second aerobic tank (8) and the secondary third aerobic tank (9) are connected with an aeration blower (17).
5. The bio-ecologically coupled rural sewage treatment facility of claim 1 wherein: the bottom of the second-stage third aerobic tank (9) is communicated with the first-stage anoxic tank (3) through a pipeline, and a mixed liquid reflux pump (14) is arranged on the pipeline.
6. The bio-ecologically coupled rural sewage treatment facility of claim 1 wherein: the ecological groove (20) is sequentially filled with a water distribution gravel layer, a modified ceramsite layer and a plastic grid filler layer in a layered manner from bottom to top.
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CN213680026U (en) * | 2020-11-12 | 2021-07-13 | 上海交通大学 | Biological ecological coupling's rural sewage treatment device |
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