CN110668570B - High-efficiency granular sludge anaerobic tower reactor - Google Patents
High-efficiency granular sludge anaerobic tower reactor Download PDFInfo
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- CN110668570B CN110668570B CN201911155028.1A CN201911155028A CN110668570B CN 110668570 B CN110668570 B CN 110668570B CN 201911155028 A CN201911155028 A CN 201911155028A CN 110668570 B CN110668570 B CN 110668570B
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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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Abstract
The invention discloses a high-efficiency granular sludge anaerobic tower reactor, which comprises a tower body, wherein the tower body comprises a water distribution area at the lower part, a reaction area at the middle part and a three-phase separation area at the upper part; the water distribution area is provided with a raw water inlet; the raw water inlet is provided with a water distribution pipe network extending into the water distribution area, and the water distribution pipe network is provided with a plurality of water distribution nozzles facing the bottom of the tower body; the lower part of the three-phase separation area is provided with a backflow water suction pipe; the backflow water suction pipe is provided with a plurality of backflow suction nozzles facing the top of the tower body; the backflow water suction pipe is communicated with the raw water inlet through a backflow pump; the three-phase separation zone is provided with a sludge sedimentation inclined plate; and a baffle plate is arranged between the sludge settling sloping plate and the backflow water suction pipe. The invention ensures that the sludge and the water are fully mixed at the bottom of the reactor, the sludge is refluxed in the three-phase separation zone for secondary reaction, and then the sludge and the water are thoroughly separated by the cooperation of the multilayer sludge settling inclined plate and the baffle plate, thereby ensuring the efficient separation of three phases of sludge, water and gas.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a high-efficiency granular sludge anaerobic tower reaction device.
Background
The traditional upflow anaerobic sludge bed and expanded granular sludge reactor are anaerobic biological devices which are applied more in the field of sewage treatment at present.
Generally, the composition of such reactors is divided into two parts: one part is a housing, generally cylindrical; the other part is a solid-liquid-gas three-phase separator. The reaction mechanism is mainly as follows: sewage to be treated is pumped in from the water inlet, water flows through the sludge layer, fine sludge rises under the impact action of the water flows, a mud-water mixture sequentially passes through the reaction zone and the three-phase separator, and wastewater finally reaches the water outlet and flows out of the reactor. The activated sludge, gas and water are separated in the three-phase separation area, the sludge descends, the methane and the carbon dioxide enter the gas collection area, and the water flows out through the water outlet.
The existing reactor still has the problem that the effect of mixing the sludge and water in the reaction zone and separating the sludge and water from the three-phase separation zone is not ideal, so that the mass transfer efficiency of the whole anaerobic reactor is reduced, and the reactor has important significance for practical application such as improvement of an anaerobic tower process and the like.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the high-efficiency granular sludge anaerobic tower reactor has the advantages of low equipment cost, high safety, good two-phase mixing reaction effect, good three-phase separation effect and high mass transfer efficiency.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a high-efficiency granular sludge anaerobic tower reactor comprises a tower body, wherein the tower body comprises a water distribution area at the lower part, a reaction area at the middle part and a three-phase separation area at the upper part; the water distribution area is provided with a raw water inlet;
the raw water inlet is provided with a water distribution pipe network extending into the water distribution area, and the water distribution pipe network is provided with a plurality of water distribution nozzles facing the bottom of the tower body;
the lower part of the three-phase separation area is provided with a backflow water suction pipe; the backflow water suction pipe is provided with a plurality of backflow suction nozzles facing the top of the tower body; the backflow water suction pipe is communicated with the raw water inlet through a backflow pump;
the three-phase separation zone is provided with a sludge sedimentation inclined plate; and a baffle plate is arranged between the sludge settling sloping plate and the backflow water suction pipe.
As a preferable technical scheme, the water distribution pipe network is distributed in the water distribution area in a tree shape; the water distribution nozzle is a jet nozzle. The water distribution shower nozzle adopts the jet nozzle design, and venturi structure guarantees water pressure, and the energy of venturi jet effect release in the twinkling of an eye can tentatively destroy the structure of macromolecule organic matter simultaneously, improves the biodegradability, and impact force in the twinkling of an eye can also carry out the disturbance to the activated sludge of deposit in the bottom, makes the abundant mixture of muddy water.
As an improved technical scheme, a gas collecting cover is correspondingly arranged at the top of the tower body above the three-phase separation area.
As an improved technical scheme, a gas outlet is formed in the top of the gas collecting cover; and a pressure relief opening is formed in the lower part of the gas collecting cover.
As an improved technical scheme, a cross beam penetrating through the gas collecting cover is arranged at the top of the tower body, and the cross beam is elastically fixed at the top of the tower body through an elastic adjustable device; the sludge settling inclined plate is hung on the cross beam through a height adjustable device.
As a further improved technical solution, the height adjustable device comprises a lifting appliance and an adjusting nut; the lower end of the lifting appliance is fixed with the sludge settling sloping plate, and the upper end of the lifting appliance is provided with a spring bolt; the cross beam is provided with a fixing hole, and the spring bolt penetrates through the fixing hole and is fixed on the cross beam by the adjusting nut.
As an improved technical scheme, the baffle plate is a conical baffle plate which is composed of an upper plate and a lower plate, and the conical top of the baffle plate faces to the central axis of the three-phase separation area.
As a further improved technical scheme, the upper end of the upper plate extends towards the upper part and the outer part of the tower body to form an annular overflow weir with the outer wall of the tower body.
As a technical scheme of further improvement, the upper end of the overflow weir is a sawtooth-shaped overflow port.
As an improved technical scheme, a water outlet groove is arranged at an overflow port of the overflow weir; a water outlet is formed in the bottom of the water outlet groove; the cross beam is elastically fixed on the water outlet groove through an elastic adjustable device.
As a further improved technical solution, the elastic adjustable device comprises a fixing plate, a compression bolt and a compression nut; the fixing plate is fixed on the cross beam, and the compression bolt penetrates through the cross beam and is fixed by the compression nut; and a compression spring is arranged between the compression nut and the cross beam.
As a further improved technical scheme, the cross beam is fixed on the water outlet groove through a fixing plate of an elastic adjustable device.
As an improved technical scheme, the sludge settling inclined plate comprises a plurality of sludge settling inclined plates which are arranged up and down; the lower ends of the sludge settling inclined plates which are arranged up and down are all positioned above the upper plate of the baffle plate.
As a further improved technical scheme, the sludge settling inclined plate is a plurality of frustum-shaped sludge settling inclined plates which are sleeved up and down; the height and the length of the side wall of the plurality of frustum-shaped sludge settling inclined plates are the same; the diameters of the upper bottom and the lower bottom of the plurality of frustum-shaped sludge settling inclined plates are sequentially reduced from the outer layer to the inner layer; the lower bottoms of the plurality of frustum-shaped sludge settling inclined plates are positioned above the upper plate of the conical baffle plate.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the high-efficiency granular sludge anaerobic tower reactor comprises a tower body, wherein the tower body comprises a water distribution area at the lower part, a reaction area at the middle part and a three-phase separation area at the upper part; the water distribution area is provided with a raw water inlet; the raw water inlet is provided with a water distribution pipe network extending into the water distribution area, and the water distribution pipe network is provided with a plurality of water distribution nozzles facing the bottom of the tower body; the bottom of the reactor is provided with a jet disturbance water distribution pipe network, so that the water distribution is fully ensured to be uniform, the active sludge deposited at the bottom can be disturbed by the instant impact force, the mud and the water are fully mixed, and meanwhile, part of macromolecular organic matters can be decomposed into smaller molecular organic matters by the jet cavitation effect; the lower part of the three-phase separation area is provided with a backflow water suction pipe; the backflow water suction pipe is provided with a plurality of backflow suction nozzles facing the top of the tower body; the backflow water suction pipe is communicated with the raw water inlet through a backflow pump; the reflux water suction pipe is arranged between the reaction zone and the three-phase separation zone, the sludge concentration of the reaction zone is ensured to be as high as possible while the disturbance of a larger upflow speed to the sludge is fully ensured, the higher anaerobic digestion efficiency is ensured, the sludge concentration of the three-phase separation zone can be reduced, the load of the three-phase separation zone is greatly reduced, the separation efficiency of the three-phase separation zone is improved, the water suction port is designed upwards, firstly, partial organic matters can be sucked back to the reaction zone for secondary deep full degradation, secondly, the sludge in a local area can flow downwards, the load of the three-phase separation zone is reduced again, the height proportion of the three-phase separation zone can be reduced on the whole design of the reactor, the design of the reactor is more compact, the cost is reduced, and the efficiency is improved; the three-phase separation zone is provided with a sludge sedimentation inclined plate; a baffle plate is arranged between the sludge settling inclined plate and the backflow water suction pipe; the sludge slides to the baffle plate after being settled on the settling inclined plate, and then flows back to the bottom of the three-phase separation area through the baffle plate, so that the return water suction pipe conveniently flows back to the reaction area for secondary reaction.
The three-phase separation zone is provided with a plurality of cone frustum-shaped sludge settling inclined plates in a sleeved mode, the settling inclined plates are same in cone height, different in cone bottom diameter and different in cone top circular opening area diameter, the diameters of the cone top circular opening areas are different and are staggered, and the cone top circular opening areas are sequentially reduced from top to bottom.
The upper end of the upper plate of the baffle plate extends towards the upper part and the outer part of the tower body to form an annular overflow weir with the outer wall of the tower body; the upper end of the overflow weir is a sawtooth-shaped overflow port; the water purified after reaction and high-efficiency separation overflows through the overflow weir to discharge water, the zigzag overflow port can further prevent sludge impurities, the purified water after convenient treatment overflows into the water outlet tank, and the structure is simple and reasonable, and the separation efficiency is higher.
The top of the tower body is provided with a cross beam penetrating through the gas collecting cover, and the cross beam is elastically fixed on the top of the tower body through an elastic adjustable device; the sludge settling inclined plate is hung on the cross beam through a height adjustable device, and the cross beam can vibrate in a small amplitude under the impact action of airflow on the gas collecting cover because of elastic fixation, so that the sludge is prevented from being deposited on the inclined plate, and the gas collecting cover can be prevented from being unstable due to overlarge pressure. The sludge settling sloping plate lifting appliance is fixed on the cross beam through a height adjustable design, and the height can be adjusted within a certain range according to the organic load of the reactor and the separation composition of the three-phase separator.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic structural view of a water distribution nozzle according to the present invention;
FIG. 4 is a schematic view of the height adjustable device of the present invention;
fig. 5 is a schematic view of the construction of the resiliently adjustable means of the present invention.
In the figure, 1, a water distribution area; 11. a raw water inlet; 12. a water distribution pipe network; 13. a water distribution nozzle; 14. a sludge discharge vent; 15. a manhole; 2. a reaction zone; 21. a sampling port; 3. a three-phase separation zone; 31. a reflux suction pipe; 32. a reflux suction nozzle; 33. a reflux pump; 34. a sludge settling sloping plate; 341. an outer layer sludge settling inclined plate; 342. the middle layer sludge settling sloping plate; 343. an inner layer sludge sedimentation sloping plate; 35. a baffle plate; 351. an upper plate; 352. a lower plate; 4. an overflow weir; 5. a gas collection hood; 51. a gas outlet; 52. a pressure relief port; 6. a cross beam; 7. a height adjustable device; 71. a spreader; 72. adjusting the nut; 73. a spring bolt; 8. a water outlet groove; 81. a water outlet; 9. an elastic adjustable device; 91. a fixing plate; 92. a hold-down bolt; 93. a compression nut; 94. a compression spring; 95. and (7) a gasket.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in fig. 1, 2 and 3, the high-efficiency granular sludge anaerobic tower reactor comprises a tower body, wherein the tower body comprises a water distribution area 1 arranged at the lower part, a reaction area 2 arranged at the middle part and a three-phase separation area 3 arranged at the upper part; the water distribution area 1 is provided with a raw water inlet 11; the raw water inlet 11 is provided with a water distribution pipe network 12 extending into the water distribution area 1, and the water distribution pipe network 12 is provided with a plurality of water distribution nozzles 13 facing the bottom of the tower body; the water distribution area 1 is also provided with a sludge discharge vent 14 and a manhole 15; the reaction zone 2 is provided with a plurality of sampling ports 21 which are arranged up and down.
The lower part of the three-phase separation area 3 is provided with a backflow water suction pipe 31; the backflow water suction pipe 1 is provided with a plurality of backflow suction nozzles 32 facing the top of the tower body; the return water suction pipe 31 is communicated with the raw water inlet 11 through a return pump 33; the three-phase separation zone 3 is provided with a plurality of sludge settling inclined plates 34 which are arranged up and down; a baffle plate 35 is arranged between the sludge settling sloping plate 34 and the backflow water suction pipe 31; the baffle 35 is a conical baffle composed of an upper plate 351 and a lower plate 352, the conical top of the baffle faces to the central axis of the three-phase separation zone 3, the upper end of the upper plate 351 extends to the upper part and the outer part of the tower body to form an annular overflow weir 4 with the outer wall of the tower body. The lower ends of the sludge settling inclined plates 34 which are arranged up and down are all positioned above the upper plate 351 of the baffle plate 35.
A water outlet groove 8 is formed at the overflow port of the overflow weir 4; and a water outlet 81 is arranged at the bottom of the water outlet groove 8. A gas collecting cover 5 is correspondingly arranged at the top of the tower body above the three-phase separation area 3; the top of the tower body is provided with a cross beam 6 penetrating through the gas collecting cover 5, and the cross beam 6 is elastically fixed on the water outlet groove 8 through an elastic adjustable device 9; the sludge settling inclined plate 34 is hung on the cross beam through a height adjustable device 7. The top of the gas collecting cover 5 is provided with a gas outlet 51; the lower part of the gas collecting cover 5 is provided with a pressure relief port 52.
As a preferred embodiment of the above-mentioned high-efficiency granular sludge anaerobic tower reactor, the water distribution nozzle 13 is a jet nozzle adopting a jet nozzle design and a venturi tube structure. The sludge settling inclined plate 34 is a three-layer frustum-shaped sludge settling inclined plate which is sleeved up and down and is respectively an outer-layer sludge settling inclined plate 341, an intermediate-layer sludge settling inclined plate 342 and an inner-layer sludge settling inclined plate 343; the height and the length of the side wall of the three-layer frustum-shaped sludge settling inclined plate are the same, and the diameter of the upper bottom and the diameter of the lower bottom of the three-layer frustum-shaped sludge settling inclined plate are sequentially reduced from the outer layer to the inner layer. The upper bottom and the lower bottom of the three-layer frustum sedimentation inclined plate are respectively positioned on two inclined lines which are parallel to each other; the lower bottom of the three-layer frustum-shaped sludge settling inclined plate is positioned above the upper plate 351 of the conical baffle plate 35. The upper end of the overflow weir 4 is a sawtooth-shaped overflow port.
As a preferred embodiment of the above-mentioned high-efficiency granular sludge anaerobic tower reactor, as shown in fig. 4, the height adjustable device 7 comprises a hanger 71 and an adjusting nut 72; the lower end of the hanger 71 is fixed with the sludge sedimentation sloping plate 34, and the upper end of the hanger 71 is provided with a spring bolt 73; the cross beam 6 is provided with a fixing hole, and the spring bolt 73 passes through the fixing hole and is fixed on the cross beam 6 by the adjusting nut 72. The spring bolt can be a bolt sleeved with a spring, so that the bolt has elastic adjusting performance.
As a preferred embodiment of the above-mentioned high-efficiency granular sludge anaerobic tower reactor, as shown in fig. 5, the elastically adjustable device 9 includes a fixing plate 91, a compression bolt 92 and a compression nut 93; the fixing plate 91 is fixed on the water outlet groove 8, and the compression bolt 92 penetrates through the cross beam 6 and is fixed by the compression nut 93; a compression spring 94 and a gasket 95 are arranged between the compression nut 93 and the cross beam 6.
Claims (8)
1. The utility model provides a high-efficient granular sludge anaerobism tower reactor, includes the tower body, its characterized in that: the tower body comprises a water distribution area at the lower part, a reaction area at the middle part and a three-phase separation area at the upper part; the water distribution area is provided with a raw water inlet;
the raw water inlet is provided with a water distribution pipe network extending into the water distribution area, and the water distribution pipe network is provided with a plurality of water distribution nozzles facing the bottom of the tower body;
the lower part of the three-phase separation area is provided with a backflow water suction pipe; the backflow water suction pipe is provided with a plurality of backflow suction nozzles facing the top of the tower body; the backflow water suction pipe is communicated with the raw water inlet through a backflow pump;
the three-phase separation zone is provided with a sludge sedimentation inclined plate; a baffle plate is arranged between the sludge settling inclined plate and the backflow water suction pipe;
a gas collecting cover is correspondingly arranged at the top of the tower body above the three-phase separation area;
the top of the tower body is provided with a cross beam penetrating through the gas collecting cover, and the cross beam is elastically fixed at the top of the tower body through an elastic adjustable device; the sludge settling inclined plate is hung on the cross beam through a height adjustable device.
2. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 1, wherein: the height adjustable device comprises a lifting appliance and an adjusting nut; the lower end of the lifting appliance is fixed with the sludge settling sloping plate, and the upper end of the lifting appliance is provided with a spring bolt; the spring bolt is fixed on the cross beam through the adjusting nut.
3. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 2, wherein: the baffle plate is a conical baffle plate which is composed of an upper plate and a lower plate, and the conical top of the baffle plate faces to the central axis of the three-phase separation area.
4. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 3, wherein: the upper end of the upper plate extends towards the upper part and the outer part of the tower body to form an annular overflow weir with the outer wall of the tower body; the upper end of the overflow weir is a sawtooth-shaped overflow port.
5. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 4, wherein: a water outlet groove is formed at the overflow port of the overflow weir; the cross beam is elastically fixed on the water outlet groove through an elastic adjustable device.
6. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 5, wherein: the elastic adjustable device comprises a fixing plate, a compression bolt and a compression nut; the fixing plate is fixed on the cross beam, and the compression bolt penetrates through the cross beam and is fixed by the compression nut; and a compression spring is arranged between the compression nut and the cross beam.
7. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 3, wherein: the sludge settling inclined plates comprise a plurality of sludge settling inclined plates which are arranged up and down; the lower ends of the sludge settling inclined plates which are arranged up and down are all positioned above the upper plate of the baffle plate.
8. The high efficiency granular sludge anaerobic tower reactor as claimed in claim 7, wherein: the sludge settling inclined plate is formed by sleeving a plurality of frustum-shaped sludge settling inclined plates up and down; the height and the length of the side wall of the plurality of frustum-shaped sludge settling inclined plates are the same; the lower bottoms of the plurality of frustum-shaped sludge settling inclined plates are positioned above the upper plate of the conical baffle plate.
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| CN110668570B true CN110668570B (en) | 2022-03-04 |
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| CN112174312B (en) * | 2020-09-30 | 2022-09-09 | 山东默锐环境产业股份有限公司 | Upflow anaerobic sludge blanket reactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246251U (en) * | 2011-10-28 | 2012-05-30 | 郑州大学 | Internal circulation upflow anaerobic sludge bed (UASB) reactor for improving waste water treatment efficiency |
| CN102583733A (en) * | 2012-03-28 | 2012-07-18 | 南京中衡元环保设备有限公司 | Anaerobic denitration fluidized bed reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2008242567A1 (en) * | 2007-04-23 | 2008-10-30 | University Of Maryland, Baltimore County | Methods for the conversion of fish waste from aquaculture systems to methane via a modified UASB reactor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246251U (en) * | 2011-10-28 | 2012-05-30 | 郑州大学 | Internal circulation upflow anaerobic sludge bed (UASB) reactor for improving waste water treatment efficiency |
| CN102583733A (en) * | 2012-03-28 | 2012-07-18 | 南京中衡元环保设备有限公司 | Anaerobic denitration fluidized bed reactor |
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