CN108298690B - Integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor - Google Patents
Integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor Download PDFInfo
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- CN108298690B CN108298690B CN201810418854.XA CN201810418854A CN108298690B CN 108298690 B CN108298690 B CN 108298690B CN 201810418854 A CN201810418854 A CN 201810418854A CN 108298690 B CN108298690 B CN 108298690B
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- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention provides an integrated partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor, which is characterized in that the main structure of the bioreactor is a cuboid, and is sequentially divided into an aerobic zone, a transition zone, an anaerobic zone, a diversion zone and a separation zone from left to right, and comprises a water inlet pipe, a compartment double-side water distributor, a microporous aeration pipe, an aerobic zone mud discharge pipe, a transition zone and anaerobic zone mud discharge pipe, a separation zone mud discharge pipe, a return pipe, an aerobic zone and transition zone exhaust pipe, an anaerobic zone exhaust pipe, a separation zone exhaust pipe, a water outlet tank, a water outlet pipe, a baffle plate, a combined sloping plate I, a combined sloping plate II and a sloping plate. The bioreactor can realize autonomous allocation among functional areas, completely avoid toxic action of aeration on anaerobic functional microorganisms, greatly improve mud-water separation effect and promote overall denitrification efficiency of the reactor. The beneficial effects are as follows: 1) The impact load resistance is strong, and the occupied area is small. 2) Avoiding the influence of aeration on the performance of the reactor. 3) The autonomous allocation of the functional area is realized. 4) The overall efficiency of the reactor is improved.
Description
Technical Field
The invention relates to a sewage biological autotrophic denitrification reactor, belongs to the field of sewage denitrification biological treatment, and particularly relates to an integrated partial nitrosation-anaerobic ammoxidation inclined plate reinforced bioreactor.
Background
The quality condition of the surface water environment in 2017 of the environmental protection department indicates that ammonia nitrogen is one of main pollution indexes in surface water in China. In recent years, the concentration of ammonia nitrogen discharged in the living production process is far beyond the self-cleaning capability of the receiving water body, and the method has become a great difficulty in water environment protection in China. The ammonia nitrogen pollution not only can cause a series of environmental problems such as water eutrophication, but also is a great hidden trouble threatening human health.
When the traditional denitrification technology is used for treating ammonia nitrogen wastewater, the problems of higher running cost, difficult sludge treatment and the like exist. The partial nitrosation-anaerobic ammonia oxidation (PN-ANAMMOX) process is a novel full-autotrophic denitrification technology, can solve the problems of the traditional denitrification, does not need to add an organic carbon source in the process operation, has low sludge yield, saves 25% of aeration amount, and can greatly reduce the treatment cost and the like. The bioreactor is the core for realizing the partial nitrosation-anaerobic ammonia oxidation process, and the partial nitrosation-anaerobic ammonia oxidation bioreactor mainly comprises two types of split type and integrated type, and the integrated type has the characteristics of saving investment cost, realizing the internal balance of alkalinity and the like and is paid attention to. However, the aeration process affects the activity of ANAMMOX functional bacteria, so that the overall denitrification capacity of the reactor is slowly improved, and the aerobic zone and the anaerobic zone cannot be distributed independently.
Disclosure of Invention
Aiming at the problems that the existing partial nitrosation-anaerobic ammonia oxidation bioreactor has functional interval distribution, aeration affects the activity of anaerobic ammonia oxidation functional flora and the like, the invention provides a novel partial nitrosation-anaerobic ammonia oxidation sloping plate reinforced bioreactor which can overcome the defects of the existing device, can realize the autonomous allocation among functional areas, completely avoid the aeration effect, greatly improve the mud-water separation effect and improve the overall denitrification efficiency of the reactor.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the integral partial nitrosation-anaerobic ammoxidation inclined plate reinforced bioreactor has a cuboid structure, can be made of steel plates or organic glass, can be an integrated sewage denitrification treatment device, and can also be a composite treatment facility formed by an assembled module monomer and other different treatment processes. The integrated partial nitrosation-anaerobic ammoxidation bioreactor comprises a bioreactor main body, a compartment double-side water distributor, a water inlet pipe, a microporous aeration pipe, an aerobic zone sludge discharge pipe, a transition zone and anaerobic zone sludge discharge pipe, a separation zone sludge discharge pipe, a return pipe, an aerobic zone and transition zone exhaust pipe, an anaerobic zone exhaust pipe, a separation zone exhaust pipe, a water outlet tank and a water outlet pipe. The main body of the bioreactor is an aerobic zone, a transition zone, an anaerobic zone, a diversion zone and a separation zone from left to right.
The aerobic zone is internally provided with semi-soft fiber bundle filler and compartment double-side water distributors. The aerobic zone is separated from the transition zone on the right side of the aerobic zone by a baffle plate, but is communicated with a gap between the combined sloping plate I by the baffle plate; separated from the anaerobic zone by a combined sloping plate I. The bottom of the leftmost side of the aerobic zone is respectively provided with a compartment bilateral water distributor and a micropore aerator pipe from left to right. The water distributors at the two sides of the compartment are communicated with the water inlet pipe. An aerobic zone exhaust pipe and a transition zone exhaust pipe are arranged on the top plate of the aerobic zone, and an aerobic zone sludge discharge pipe is distributed at the joint of the aerobic zone and the bottom of the baffle.
The transition zone is internally provided with a fluidized bed filler K1. The left side of the transition zone is separated from the aerobic zone by a baffle plate, but is communicated with a gap between the combined sloping plate I by the baffle plate; the anaerobic zone is separated from the anaerobic zone by the combined sloping plate I, but the gap between the combined sloping plate I and the combined sloping plate II is communicated.
The anaerobic zone is positioned between the transition zone and the separation zone, is separated from the transition zone by the combined sloping plate I, and is communicated with a gap between the bottoms of the combined sloping plate I and the combined sloping plate II; the combined sloping plate II is respectively separated from the diversion area and the separation area, but is communicated with the diversion area through a gap between the combined sloping plate II and the top plate; an anaerobic zone exhaust pipe is distributed on the top plate of the anaerobic zone, and a transition zone and an anaerobic zone sludge discharge pipe are arranged at the gap between the bottom of the anaerobic zone inclined plate I and the bottom of the combined inclined plate II.
The diversion area is positioned at the right upper side of the anaerobic area and is separated from the anaerobic area through the combined sloping plate II, but is communicated with the anaerobic area through a gap between the combined sloping plate II and the top plate; separated from the separation zone by the sloping plate, but communicated with the separation zone by a gap between the sloping plate and the combined sloping plate II.
The separation zone is positioned at the rightmost side of the bioreactor main body and is separated from the anaerobic zone and the diversion zone respectively through the combined sloping plate II and the sloping plate, but is communicated with the diversion zone through a gap between the sloping plate and the combined sloping plate II; a separation zone exhaust pipe is arranged on the top plate of the separation zone, a water outlet groove, a water outlet pipe and a return pipe are arranged on the outer side of the separation zone, and the separation zone is communicated with the water outlet groove through a water outlet groove slit; the joint of the separation area and the bottom of the combined sloping plate II is provided with a separation area sludge discharge pipe.
Wherein the ratio of the length (L), the width (W) and the height (H) of the main body of the bioreactor is (4-6): 1 (2-3), and the volume ratio of the aerobic zone, the transition zone, the anaerobic zone and the separation zone is 3:1:2:1.
The length of the double-side water distributor of the compartment is equal to the width of the bioreactor main body, the double-side plates and the bioreactor main body form a closed compartment, the double-side plates are provided with circular hole arrays, the diameter (D) of the circular holes is (0.05-0.015) L, and the width of the double-side plates is 0.03L.
The length of the microporous aeration pipe is 1/2 of that of the aerobic zone, one end of the microporous aeration pipe is close to the water distributors on the two sides of the compartment, and the microporous aeration pipe is arranged along the length direction of the bioreactor and is positioned on one side of the height surface of the reactor main body.
Wherein the baffle is positioned at 1/2L of the reactor main body and is vertically arranged, and the height of the baffle is (1/2-2/3) H.
The combined sloping plate I consists of a longitudinal sloping plate and a transverse sloping plate, and an included angle between the longitudinal sloping plate and the transverse sloping plate is 150 degrees; the longitudinal inclined plate is connected with the top plate of the reactor, and the horizontal included angle is 60 degrees; the horizontal included angle of the transverse inclined plate is 30 degrees.
The combined sloping plate II consists of a longitudinal sloping plate and a transverse sloping plate, and the included angle between the longitudinal sloping plate and the transverse sloping plate is 150 degrees; the longitudinal inclined plate is connected with the bottom of the reactor main body, the horizontal included angle is 60 degrees, and the horizontal included angle of the transverse inclined plate is 30 degrees; the width of the gap between the combined sloping plate II and the combined sloping plate I is 2-10 cm, and the height of the upper edge of the transverse sloping plate in the combined sloping plate II is 3-15 cm lower than the height of the water outlet pipe.
Wherein the inclined plate is connected with the top plate of the reactor main body, and the horizontal included angle is 60 degrees; the gap width between the sloping plate and the combined sloping plate II is 2-10 cm.
Wherein the height of the water outlet slot is 6-15 cm lower than that of the water outlet pipe, and the height of the return pipe is equal to that of the water outlet slot.
The aerobic zone exhaust pipe, the transition zone exhaust pipe, the anaerobic zone exhaust pipe and the separation zone exhaust pipe are all positioned at 1/2 of the width of the top plate of the reactor main body, are respectively positioned at 1/2 of the length of each functional zone, and the inner diameters of the exhaust pipes are all 2-10 cm.
Wherein the aerobic zone is provided with aerobic denitrification floccule sludge, and the volume of semi-soft fiber bundle filler in the aerobic zone accounts for 25-45% of the volume of the aerobic zone; anaerobic ammonia oxidation granular sludge is arranged in the anaerobic zone, the transition zone is filled with fluidized filler K1, and the sludge types are automatically regulated by the reaction process.
The design of the reactor configuration is crucial to the reasonable configuration of the partial nitrosation and anaerobic ammonia oxidation functional interval, the reduction of the reaction dead zone, the optimization of the flow state in the reactor, the improvement of the denitrification efficiency and the like. The invention utilizes the baffle plate and the combined sloping plate to divide the bioreactor into an aerobic zone, a transition zone, an anaerobic zone, a diversion zone and a sedimentation zone, the transition zone can realize the autonomous configuration of the half-way nitrification and anaerobic ammonia oxidation functional zone, and the adverse effect of the aeration process on the activity of anaerobic ammonia oxidation functional bacteria is completely avoided; the integral flow state of the reactor is optimized through the combined inclined plate, so that the functional dead zone of the reactor is greatly reduced, the effective reaction volume of the reactor is increased, and the occupied area is reduced; the reaction process and the reaction time are prolonged through the inclined plate arrangement; realizing the full mixed flow of each functional area of the reactor, and realizing the overall plug flow of the reactor, thereby greatly improving the denitrification removal efficiency; the inclined plate of the sedimentation area is designed to increase the area of the sedimentation area, slow the horizontal flow velocity of sewage, be more beneficial to sludge sedimentation and improve the sludge-water separation effect; the aerobic zone is filled with the filler, so that higher nitrosation function microorganism quantity in the reactor can be maintained, the denitrification volume load is obviously improved, and the impact load resistance of the reactor is improved.
The beneficial effects of the invention are as follows:
1) The impact load resistance is strong, and the occupied area is small. The aerobic zone and the transition zone are both provided with fillers, so that higher functional microorganism quantity can be maintained; anaerobic ammonia oxidation granular sludge is arranged in the anaerobic zone, and the concentration of anaerobic ammonia oxidation functional microorganisms is high. The reactor can achieve higher volume load, thereby occupying small area, and the high-concentration functional microorganisms can greatly improve the impact load resistance of the reactor.
2) Avoiding the influence of aeration on the performance of the reactor. The arrangement of the transition zone can form a buffer space between the aerobic zone and the anaerobic zone, oxygen can be effectively utilized by microorganisms in the transition zone, and the oxygen toxicity to the subsequent anaerobic ammonia oxidation functional flora can be completely eliminated, so that the high-efficiency and stable operation of the reactor is maintained.
3) The autonomous allocation of the functional area is realized. The transition zone can automatically adjust the functions of the reactor in actual operation, can reasonably switch between aerobic half-process nitrification and anaerobic ammonia oxidation, can automatically adjust the ratio between the aerobic zone and the anaerobic zone, and can quickly and effectively respond to the change of the operation parameters and automatically adjust and reasonably distribute the operation parameters.
4) The overall efficiency of the reactor is improved. The baffle plates and the combined inclined plates are reasonably arranged, so that the flow state of the reactor can be optimized, the functional dead zone of the reactor is reduced, the reaction process is prolonged, the reaction time is prolonged, the functional zones of the reactor are fully mixed, the whole reactor realizes plug flow, and the denitrification performance of the reactor is greatly improved; the surface area of the separation area is increased, so that the surface flow velocity of sewage is reduced, and the mud-water separation effect can be improved.
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
Advantages and features of the invention are described in detail below with reference to the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an integrated partial nitrosation-anaerobic ammoxidation inclined plate enhanced bioreactor;
FIG. 2 is a top view of an integrated partial nitrosation-anaerobic ammoxidation swash plate enhanced bioreactor;
wherein, 1, a bioreactor main body; 2. an aerobic zone; 3. a transition zone; 4. an anaerobic zone; 5. a diversion area; 6. a separation zone; 7. a water inlet pipe; 8. compartment bilateral water distributors; 9. microporous aeration pipes; 10. a mud pipe in the aerobic zone; 11. a transition zone and an anaerobic zone sludge discharge pipe; 12. a separation zone sludge discharge pipe; 13. a return pipe; 14. the exhaust pipes of the aerobic zone and the transition zone; 15. an anaerobic zone exhaust pipe; 16. a separation zone exhaust pipe; 17. a water outlet tank; 18. a water outlet pipe; 19. a baffle; 20. a combined sloping plate I; 21. a combined sloping plate II; 22. a sloping plate; 201. a longitudinal sloping plate of the combined sloping plate I; 202. a transverse sloping plate of the combined sloping plate I; 211. a longitudinal sloping plate of the combined sloping plate II; 212. and a combined inclined plate II is a transverse inclined plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
In the following description, a detailed structure will be presented for a thorough understanding of the present invention. It will be apparent that the invention is not limited to the specific details set forth in the skilled artisan. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments in addition to these detailed descriptions.
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor has a cuboid structure, can be made of steel plates or organic glass, can be an integrated sewage denitrification treatment device, and can also be a composite treatment facility formed by an assembled module monomer and other different treatment processes. Comprises a bioreactor main body 1, a compartment double-sided water distributor 8, a water inlet pipe 7, a microporous aeration pipe 9, an aerobic zone sludge discharge pipe 10, a transition zone sludge discharge pipe 11, a separation zone sludge discharge pipe 12, a return pipe 13, an aerobic zone and transition zone exhaust pipe 14, an anaerobic zone exhaust pipe 15, a separation zone exhaust pipe 16, a water outlet tank 17 and a water outlet pipe 18. The main body of the bioreactor is an aerobic zone 2, a transition zone 3, an anaerobic zone 4, a diversion zone 5 and a separation zone 6 from left to right.
The aerobic zone 2 is internally provided with a semi-soft fiber bundle filler and a compartment double-side water distributor 8. The aerobic zone 2 is separated from the transition zone 3 on the right side of the aerobic zone by a baffle 19 and is communicated with a gap between the combined sloping plate I20 by the baffle 19; separated from the anaerobic zone 4 by a combined sloping plate I20. The bottom of the leftmost side of the aerobic zone 2 is respectively provided with a compartment double-side water distributor 8 and a micropore aeration pipe 9 from left to right, and the compartment double-side water distributor 8 is communicated with a water inlet pipe 7. An aerobic zone and transition zone exhaust pipe 14 is arranged on the top plate of the aerobic zone 2, and an aerobic zone sludge discharge pipe 10 is arranged at the joint of the aerobic zone 2 and the bottom of the baffle 19.
The transition zone 3 is internally provided with a fluidized bed filler K1. The left side of the transition zone 3 is separated from the aerobic zone 2 by a baffle 19, but is communicated with a gap between the combined sloping plate I20 by the baffle 19, is separated from the anaerobic zone 4 by the combined sloping plate I20, and is communicated with a gap between the combined sloping plate II 21 by the combined sloping plate I19.
The anaerobic zone 4 is positioned between the transition zone 3 and the separation zone 6, is separated from the transition zone 3 by the combined sloping plate I20, and is communicated with the transition zone 3 by a gap between the bottoms of the combined sloping plate I20 and the combined sloping plate II 21; the combined sloping plate II 21 is respectively separated from the diversion area 5 and the separation area 6, but is communicated with the diversion area 5 through a gap between the combined sloping plate II 21 and the top plate; an anaerobic zone exhaust pipe 15 is arranged on the top plate of the anaerobic zone 4, and a transition zone and an anaerobic zone sludge discharge pipe 11 are arranged at the gap between the bottom of the combined sloping plate I20 and the bottom of the combined sloping plate II 21 of the anaerobic zone 4.
The diversion area 5 is positioned on the upper right side of the anaerobic area 4 and is separated from the anaerobic area 4 by the combined sloping plate II 21, but is communicated with the anaerobic area 4 by a gap between the combined sloping plate II 21 and the top plate; separated from the separation zone 6 by the inclined plate 22, but communicated with the separation zone 6 by a gap between the inclined plate 22 and the combined inclined plate II 21.
The separation zone 6 is positioned at the rightmost side of the bioreactor main body 1 and is respectively separated from the anaerobic zone 4 and the diversion zone 5 through a combined sloping plate II 21 and a sloping plate 22, but is communicated with the diversion zone 5 through a gap between the sloping plate 22 and the combined sloping plate II 21; the top plate of the separation zone is provided with a separation zone exhaust pipe 16, the outer side of the separation zone is provided with a water outlet groove 17, a water outlet pipe 18 and a return pipe 13, and the separation zone 6 is communicated with the water outlet groove 17 through a slit; the joint of the separation zone 6 and the bottom of the combined sloping plate II 21 is provided with a separation zone mud pipe 12.
Wherein the ratio of the length (L), the width (W) and the height (H) of the bioreactor main body 1 is (4-6): 1 (2-3), and the volume ratio of the aerobic zone 2, the transition zone 3, the anaerobic zone 4 and the separation zone 6 is 3:1:2:1. The length of the compartment double-side water distributor 8 is equal to the width of the bioreactor main body 1, the two side plates and the bioreactor main body form a closed compartment, the two side plates are all provided with circular hole arrays, the diameter (D) of the circular holes is (0.05-0.015) L, and the width of the two side plates is 0.03L. The length of the microporous aeration pipe 9 is 1/2 of the length of the aerobic zone 2, one end of the microporous aeration pipe is close to the double-side water distributor 8 of the compartment, and the microporous aeration pipe is arranged along the length direction of the bioreactor main body 1 and is positioned at one side of the height surface of the bioreactor main body 1. The baffle plate 19 is positioned at 1/2L of the reactor main body and is vertically arranged, and the height of the baffle plate 19 is (1/2-2/3) H. The combined sloping plate I20 consists of a longitudinal sloping plate 201 and a transverse sloping plate 202, and an included angle between the longitudinal sloping plate 201 and the transverse sloping plate 202 is 150 degrees; the longitudinal inclined plate 201 is connected with the top plate of the reactor, and the horizontal included angle is 60 degrees; the horizontal angle of the transverse sloping plate 202 is 30 °. The combined sloping plate II 21 consists of a longitudinal sloping plate 211 and a transverse sloping plate 212, and the included angle between the longitudinal sloping plate 211 and the transverse sloping plate 212 is 150 degrees; the longitudinal inclined plate 211 is combined with the bottom of the reactor body, the horizontal included angle is 60 degrees, and the horizontal inclined plate 212 has a horizontal included angle of 30 degrees; the gap width between the combined sloping plate II 21 and the combined sloping plate I20 is 2-10 cm, and the height of the upper edge of the transverse sloping plate 212 in the combined sloping plate II 21 is 3-15 cm lower than the height of the water outlet pipe 18. The inclined plate 22 is connected with the top plate of the reactor main body 1, and the horizontal included angle is 60 degrees; the gap width between the sloping plate 22 and the combined sloping plate II 21 is 2-10 cm. The slit height of the water outlet groove 17 is 6-15 cm lower than the height of the water outlet pipe 18. The aerobic zone exhaust pipe 14, the transition zone exhaust pipe 15 and the separation zone exhaust pipe 16 are all positioned at the 1/2 part of the width of the top plate of the reactor main body and are respectively positioned at the 1/2 part of the length of each functional zone, and the inner diameters of the exhaust pipes are all 2-10 cm. The aerobic zone 2 is internally provided with aerobic denitrification floccule sludge, and the volume of the built-in semi-soft fiber bundle filler accounts for 25-45% of the volume of the aerobic zone 1; anaerobic ammoxidation granular sludge is arranged in the anaerobic zone 4, the transition zone 3 is filled with full fluidized filler K1, and the sludge types are automatically configured in the reaction process.
The working process of the integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor is as follows: the wastewater containing ammonia and nitrogen enters the compartment bilateral water distributor 8 through the water inlet pipe 7, is fully and uniformly mixed with reflux water of the reflux pipe 13 in the compartment bilateral water distributor 8, enters the aerobic zone 2 after being uniformly distributed in the transverse and longitudinal directions through a circular hole array on two side plates in the compartment bilateral water distributor 8, and is fully mixed and oxygenated to a certain extent in the aerobic zone under the stirring and aeration actions of air released by a microporous aeration pipe positioned at one side of the height surface of the reactor main body 1, the wastewater is subjected to partial nitrosation reaction in the aerobic zone 2, partial ammonia nitrogen is converted into sodium nitrite salt, and the wastewater flows through the second half section of the aerobic zone and is aerated by a microporous aeration pipe, so that the oxygen content in the wastewater is gradually reduced; the sewage continuously enters the transition zone 3 through a gap between the baffle 19 and the combined inclined plate I20, if the oxygen concentration is higher, the transition zone 3 performs the function of the aerobic zone 2 mainly for short-range nitration reaction, and if the oxygen concentration is lower, the transition zone 3 performs the function of the anaerobic zone 4 mainly for anaerobic ammoxidation reaction; sewage continuously enters the anaerobic zone 4 from the transition zone 3 through a gap between the combined sloping plate I20 and the combined sloping plate II 21, the sewage undergoes anaerobic ammoxidation reaction in the anaerobic zone 4, nitrogen pollutants finally generate nitrogen and are discharged, and anaerobic ammoxidation granular sludge with bubbles and floating upwards can return to the anaerobic zone 5 through the retention and separation effects of the combined sloping plate II 21; the sewage continuously enters the separation zone 6 from the diversion zone 5 through the gap between the inclined plate 22 and the combined inclined plate II 21, and the surface area of the separation zone can be increased due to the arrangement of the combined inclined plate II 21, so that the surface flow velocity of the sewage is reduced, and the mud water is well separated; the sewage continues to flow into the water outlet groove 17 through the slit in the separation zone 6 and is discharged through the water discharge pipe 18.
The embodiments described in the present specification are merely examples of implementation forms of the inventive concept, and the scope of protection of the present invention should not be construed as being limited to the specific forms set forth in the embodiments, but also equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.
Claims (7)
1. An integral partial nitrosation-anaerobic ammoxidation sloping plate reinforced bioreactor is characterized in that: the main structure of the bioreactor is a cuboid, and is sequentially divided into an aerobic zone, a transition zone, an anaerobic zone, a diversion zone and a separation zone from left to right, wherein the main structure comprises a water inlet pipe, a compartment double-side water distributor, a microporous aeration pipe, an aerobic zone sludge discharge pipe, a transition zone and anaerobic zone sludge discharge pipe, a separation zone sludge discharge pipe, a return pipe, an aerobic zone and transition zone exhaust pipe, an anaerobic zone exhaust pipe, a separation zone exhaust pipe, a water outlet tank, a water outlet pipe, a baffle, a combined inclined plate I, a combined inclined plate II and an inclined plate;
the aerobic zone is internally provided with semi-soft fiber bundle filler, and the aerobic zone is separated from a transition zone on the right side of the aerobic zone by a baffle plate and is communicated with a gap between the combined sloping plate I by the baffle plate; the bottom of the leftmost side of the aerobic zone is respectively provided with a compartment bilateral water distributor and a micropore aeration pipe from left to right through a combined inclined plate I and an anaerobic zone, the compartment bilateral water distributors are communicated with a water inlet pipe, an aerobic zone exhaust pipe and a transition zone exhaust pipe are arranged on a top plate of the aerobic zone, and an aerobic zone sludge discharge pipe is distributed at the joint of the aerobic zone and the bottom of a baffle plate;
the transition zone is internally provided with fluidized bed filler K1, and the left side of the transition zone is separated from the aerobic zone by a baffle plate and is communicated with a gap between the combined sloping plate I by the baffle plate; the anaerobic zone is separated from the anaerobic zone by the combined sloping plate I, but the anaerobic zone is communicated with the anaerobic zone by a gap between the combined sloping plate I and the combined sloping plate II;
the transition zone can automatically adjust the functions of the reactor in actual operation, can reasonably switch between aerobic half-process nitrification and anaerobic ammonia oxidation, can automatically adjust the ratio between the aerobic zone and the anaerobic zone, quickly and effectively respond to the change of the operation parameters, and automatically adjust and reasonably distribute the operation parameters; if the oxygen concentration is higher, the transition zone is an aerobic or facultative environment, the transition zone performs an aerobic zone function mainly based on short-range nitration reaction, and if the oxygen concentration is lower, the transition zone performs an anaerobic zone function mainly based on anaerobic ammoxidation reaction;
the anaerobic zone is positioned between the transition zone and the separation zone, is separated from the transition zone by the combined sloping plate I, and is communicated with a gap between the bottoms of the combined sloping plate I and the combined sloping plate II; the combined sloping plate II is respectively separated from the diversion area and the separation area, but is communicated with the diversion area through a gap between the combined sloping plate II and the top plate; an anaerobic zone exhaust pipe is distributed on the top plate of the anaerobic zone, and a transition zone and an anaerobic zone sludge discharge pipe are arranged at the gap between the bottom of the anaerobic zone inclined plate I and the bottom of the combined inclined plate II.
2. The bioreactor of claim 1, wherein: the diversion area is positioned at the right upper side of the anaerobic area and is separated from the anaerobic area through the combined sloping plate II, but is communicated with the anaerobic area through a gap between the combined sloping plate II and the top plate; separated from the separation zone by the sloping plate, but communicated with the separation zone by a gap between the sloping plate and the combined sloping plate II.
3. The bioreactor of claim 1, wherein: the separation zone is positioned at the rightmost side of the bioreactor main body and is separated from the anaerobic zone and the diversion zone respectively through the combined sloping plate II and the sloping plate, but is communicated with the diversion zone through a gap between the sloping plate and the combined sloping plate II; a separation zone exhaust pipe is arranged on the top plate of the separation zone, a water outlet groove, a water outlet pipe and a return pipe are arranged on the outer side of the separation zone, and the separation zone is communicated with the water outlet groove through a water outlet groove slit; the joint of the separation area and the bottom of the combined sloping plate II is provided with a separation area sludge discharge pipe.
4. The bioreactor of claim 1, wherein: the ratio of the length to the width to the height of the main body of the bioreactor is (4-6): 1 (2-3), and the volume ratio of the aerobic zone to the transition zone to the anaerobic zone to the separation zone is 3:1:2:1.
5. The bioreactor of claim 1, wherein: the length of the double-side water distributor of the compartment is equal to the width of the main body of the bioreactor, the surfaces of the double side plates and the main body of the bioreactor form a closed compartment, the double side plates are provided with circular hole arrays, the diameter of the circular holes is 0.05-0.015 of the length of the main body of the reactor, and the width of the double side plates is 0.03 of the length of the main body of the reactor.
6. The bioreactor of claim 1, wherein: the length of the microporous aeration pipe is 1/2 of that of the aerobic zone, one end of the microporous aeration pipe is close to the water distributors on the two sides of the compartment, and the microporous aeration pipe is arranged along the length direction of the bioreactor and is positioned on one side of the height surface of the reactor main body;
wherein the baffle is positioned at the 1/2 length of the reactor main body and is vertically arranged, and the height of the baffle is (1/2-2/3) of the reactor main body.
7. The bioreactor of claim 1, wherein: the combined sloping plate I consists of a longitudinal sloping plate and a transverse sloping plate, and the included angle between the longitudinal sloping plate and the transverse sloping plate is 150 degrees; the longitudinal inclined plate is connected with the top plate of the reactor, and the horizontal included angle is 60 degrees; the horizontal included angle of the transverse inclined plate is 30 degrees;
the combined sloping plate II consists of a longitudinal sloping plate and a transverse sloping plate, and the included angle between the longitudinal sloping plate and the transverse sloping plate is 150 degrees; the longitudinal inclined plate is connected with the bottom of the reactor main body, the horizontal included angle is 60 degrees, and the horizontal included angle of the transverse inclined plate is 30 degrees; the width of the gap between the combined sloping plate II and the combined sloping plate I is 2-10 cm, and the height of the upper edge of the transverse sloping plate in the combined sloping plate II is 3-15 cm lower than the height of the water outlet pipe.
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| CN114315037B (en) * | 2021-12-30 | 2022-08-23 | 哈尔滨工业大学 | Inversion A of external electric field 2 O-GDMBR (membrane bioreactor-membrane bioreactor) integrated village and town sewage treatment device and method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2542894A1 (en) * | 2006-04-04 | 2007-10-04 | Laleh Yerushalmi | Multi-environment wastewater treatment method |
| WO2017173708A1 (en) * | 2016-04-05 | 2017-10-12 | 江南大学 | Integrated reactor for biological treatment of livestock farm wastewater |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179273A (en) * | 1999-12-28 | 2001-07-03 | Hitachi Chem Co Ltd | Sludge storage tank and septic tank having the sludge storage tank |
| CN1239406C (en) * | 2003-02-13 | 2006-02-01 | 上海达源环境科技工程有限公司 | Biochemical reactor for treating sewage |
| CN201906487U (en) * | 2010-11-25 | 2011-07-27 | 广州益方田园环保科技开发有限公司 | Three-phase separator for sewage treatment |
| CN103508561B (en) * | 2013-09-29 | 2014-12-31 | 浙江大学 | Segmented oxygen supply self-circulation denitrification reactor |
| CN203582586U (en) * | 2013-09-29 | 2014-05-07 | 浙江大学 | Self-circulation denitrification reactor adopting sectional oxygen supply |
| CN103601293B (en) * | 2013-10-10 | 2015-01-28 | 杭州师范大学 | Tower-type bioreactor synchronously removing carbon, nitrogen and sulfur |
| CN103755026B (en) * | 2013-12-30 | 2015-05-27 | 杭州师范大学 | Integrated baffle plate internal circulation autotrophic nitrogen removal granular sludge reactor |
| CN104787889B (en) * | 2015-04-29 | 2017-06-06 | 北京工业大学 | The method for recovering municipal sewage short distance Anammox using the micro- exposure of hypoxemia and anoxia stirring |
| CN104986923B (en) * | 2015-07-27 | 2017-06-06 | 北京工业大学 | A kind of apparatus and method of the multistage A/O biological denitrificaions based on municipal sewage short distance nitration Anammox |
| CN105502663B (en) * | 2016-02-18 | 2018-02-13 | 江西省科学院能源研究所 | A kind of multifunctional bio denitrification reactor |
| CN106745737A (en) * | 2016-12-17 | 2017-05-31 | 杭州师范大学 | A kind of short distance nitration Anammox manifold type denitrification reactor |
| CN106904796B (en) * | 2017-04-20 | 2020-11-10 | 成都孚华环保科技有限公司 | Multistage diversion type SSMBBR sewage treatment system and treatment method |
| CN208454615U (en) * | 2018-05-04 | 2019-02-01 | 中国海洋大学 | Integral part nitrosation-anaerobic ammoxidation inclined plate bioreactor |
-
2018
- 2018-05-04 CN CN201810418854.XA patent/CN108298690B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2542894A1 (en) * | 2006-04-04 | 2007-10-04 | Laleh Yerushalmi | Multi-environment wastewater treatment method |
| WO2017173708A1 (en) * | 2016-04-05 | 2017-10-12 | 江南大学 | Integrated reactor for biological treatment of livestock farm wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 中试一体式部分亚硝化-厌氧氨氧化反应器的启动与区域特性;周正;王凡;林兴;董石语;朱强;李祥;黄勇;;环境科学(第03期) * |
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