CN201049909Y - Air-lift type self-circulating anaerobic bioreactor - Google Patents
Air-lift type self-circulating anaerobic bioreactor Download PDFInfo
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- CN201049909Y CN201049909Y CNU2007201057271U CN200720105727U CN201049909Y CN 201049909 Y CN201049909 Y CN 201049909Y CN U2007201057271 U CNU2007201057271 U CN U2007201057271U CN 200720105727 U CN200720105727 U CN 200720105727U CN 201049909 Y CN201049909 Y CN 201049909Y
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Abstract
The utility model discloses an air lift self-circulation anaerobic bioreactor which has a reactor body. A reaction chamber, a gas collection chamber and a gas-liquid separation chamber are divided from the top to the bottom inside the reactor body; a sludge settling chamber is arranged outside the gas collection chamber; two crisscross gaskick eliminators are arranged in the middle of the reaction chamber at equal distances; a sludge return slot is arranged between the lower edge of the gas collection chamber and an increasing coupling of the reactor body; oblique partition boards are arranged at the upper part of the increasing coupling for separating the upper part of the reactor body into the gas-liquid separation chamber, the gas collection chamber and the sludge settling chamber; a return pipe is arranged at the bottom of the gas-liquid separation chamber and the lower end of the return pipe is connected with the lower part of the reaction chamber. The utility model allows the mixture to achieve self-circulation through the return pipe arranged outside, thereby the capacities of impact load resistance and acid-alkali balance of the utility model is improved and the mass transport process is strengthened; in addition, the short flow caused by gaskick is reduced because of the arrangement of the two crisscross gaskick eliminators in the utility model.
Description
Technical field
The utility model relates to a kind of gas-lifting type self-circulating anaerobic bioreactor.
Background technology
Anaerobic Microbiological Treatment Technology is under anaerobic, utilizes the metabolism of microorganism, and organic pollutant is changed into biogas, thereby makes sewage reach the process of purification.Handle with aerobe and to compare, anaerobic biological treatment has that energy consumption is few, and sludge yield is low, and can reclaim the characteristics of biogas, is one of effective means that realizes recycling economy, has a extensive future.
The history in existing more than 100 year of the research and development of anaerobic biological reactor now has been developed to the third generation.The efficient anaerobe treatment system generally needs to satisfy two conditions: 1) can hold and stay a large amount of anaerobic activated sludges; 2) can guarantee that muddy water fully contacts.With upflow anaerobic sludge blanket process (UASB) reactor is that the s-generation anaerobic biological reactor of representative has satisfied above-mentioned two conditions, has obtained the performance of efficient stable.Because under high loading, the UASB reactor is prone to short stream, improves through people, having developed with anaerobic grain sludge expanded bed (EGSB) and anaerobism inner circulation reactor (IC) is the third generation anaerobic biological reactor of representative.EGSB and IC reactor also have its inherent defective.For example, the EGSB reactor needs effluent recycling, has not only increased power consumption, and makes reactor be full mixing, and treatment efficiency and effluent quality are difficult to further raising.The IC reactor is prone to short stream before realizing internal recycle, the operation control ratio is difficulty; Add that hydraulic detention time is relatively short and aspect ratio is bigger, it is more to contain fine particle mud (precursor of formation macrobead mud) in the water outlet, makes the post precipitation unit equipment that necessitates.
At the above-mentioned defective of third generation anaerobic biological reactor, the utility model is attempted the synergy by collection chamber, gas-liquid separation chamber and effuser in the three-phase separating system, the negative impact on the containment biogas due to the ease; By improving the settling chamber, strengthen settling chamber's volume, in reactor, hold and stay high concentration sludge, reduce the loss of fine particle mud; By the peripheral hardware return line, alleviate the short stream of the matrix due to the ease on the biogas, while recovery part basicity, the acidity that bottom the neutralization reaction chamber, produces.Evidence, Kai Fa gas-lifting type self-circulating anaerobic bioreactor has good anaerobic treatment usefulness in view of the above, and has very high operation stability.
Summary of the invention
The purpose of this utility model provides a kind of gas-lifting type self-circulating anaerobic bioreactor.
It has reactor body, is divided into reaction chamber, collection chamber, gas-liquid separation chamber in the reactor body from top to bottom, and collection chamber is provided with the sludge settling chamber outward.Be provided with shore pipe in reaction chamber bottom, be provided with water inlet pipe, equidistantly in the middle of reaction chamber be provided with two cruciform gas and gush eliminator in the reaction chamber bottom.Be provided with mud backflow seam between collection chamber lower edge and the reactor body increaser, the collection chamber upper end is a reducing pipe, collection chamber reducing pipe upper end is provided with effuser, collection chamber reducing pipe upper end is provided with inclined clapboard, and inclined clapboard will be separated into gas-liquid separation chamber and collection chamber, sludge settling chamber on the reactor body.The gas-liquid separation chamber bottom is provided with return line, and return line lower end and reaction chamber bottom join.Be provided with a plurality of thief holes on reactor body and return line, top, sludge settling chamber is provided with rising pipe, and the gas-liquid separation chamber bottom is provided with shore pipe, and the reactor body top is provided with emergency disposal mouth, escape pipe.
Described reactor body is cylindric, and two cylinders different by internal diameter are formed by connecting by increaser, and the ratio of its internal diameter is 1: 2～4, and increaser becomes 50 °～70 ° with the angle δ of datum water level.The height of reactor body and the diameter ratio of reaction chamber are 13～8: 1.The cross-sectional area S of reaction chamber
1With sludge settling chamber the maximum cross-section area S
2Ratio be 1: 2～4, the cross-sectional area S of reaction chamber
1Cross-sectional area S with effuser
3Ratio be 27～30: 1, the cross-sectional area S of reaction chamber
1With return line cross-sectional area S
4Ratio be 2～4: 1.The reducing pipe of collection chamber and the angle ε between datum water level are 50 °～70 °, collection chamber lower edge to rising pipe center be 18～22: 1 apart from a and rising pipe center to the ratio of the vertical distance b of effuser.Sludge settling chamber volume is 1: 3～4 with the ratio of reactor body volume.The width of mud backflow seam is 1～2cm.Cruciform gas gushes eliminator and adopts stainless steel or plastic tab, and two thin slices are vertical mutually, and two thin slices are horizontal by 40 °～50 ° inclinations.Angle β between division plate and datum water level is 25 °～35 °.
The utility model has the advantages that: 1) the collection chamber of putting can realize that with gas-liquid separation chamber mud, water, the effective of gas separate, its collection chamber can effectively cover the entire reaction chamber cross-section and have certain depth, make it fully to collect the biogas that escapes from reaction chamber, avoid mud and the direct outflow reactor of matrix in the air-flow tail washings, effectively contained the short stream of matrix effect.2) by the peripheral hardware return line, utilize the power of ease generation on the biogas and the density difference that biogas separates the front and back mixed solution, make mixed solution produce self-circulation, improved capacity of resisting impact load and acid base equilibrium ability; Promote the contact between waste water and the mud simultaneously, strengthened mass transfer process.3) in reaction chamber inside, two cruciform gas are set gush eliminator by equidistant, alleviate gas and gushed the short stream that causes.4) in the sludge settling chamber, the sludge settling process is not subjected to the direct interference of biogas, has reduced sludge loss effectively, makes reactor have very high treatment efficiency and high-quality water outlet.
Description of drawings
Accompanying drawing is the gas-lifting type self-circulating anaerobic bioreactor structural representation, and among the figure: water inlet pipe 1, reaction chamber 2, shore pipe 3, cruciform gas gush eliminator 4, thief hole 5, return line 6, rising pipe 7, collection chamber 8, sludge settling chamber 9, mud backflow seam 10, effuser 11, gas-liquid separation chamber 12, emergency disposal mouth 13, escape pipe 14, division plate 15.
Embodiment
As shown in drawings, gas-lifting type self-circulating anaerobic bioreactor has reactor body, is divided into reaction chamber 2, collection chamber 8, gas-liquid separation chamber 12 in the reactor body from top to bottom, the collection chamber outer sludge settling chambers 9 that are provided with 8.Be provided with shore pipe 3 in reaction chamber 2 bottoms, reaction chamber 2 bottoms are the pyramid type structure, apex angle is 50 °～70 °, be provided with water inlet pipe 1 in reaction chamber 2 bottoms, water inlet pipe 1 gos deep into reaction chamber central authorities from the bottom, and outlet up, equidistantly in the middle of reaction chamber 2 is provided with two cruciform gas and gushes eliminator 4.Be provided with mud backflow seam 10 between collection chamber 8 lower edges and the reactor body increaser, collection chamber 8 upper ends are reducing pipe, collection chamber 8 reducing pipes upper end is provided with effuser 11, collection chamber 8 reducing pipes upper end is provided with inclined clapboard 15, and inclined clapboard 15 is separated into gas-liquid separation chamber 12 and collection chamber 8, sludge settling chamber 9 with the reactor body upper end.Gas-liquid separation chamber 12 bottoms are provided with return line 6, and return line 6 lower ends and reaction chamber 2 bottoms join.Be provided with a plurality of thief holes 5 on reactor body and return line, 9 tops, sludge settling chamber are provided with rising pipe 7, and gas-liquid separation chamber 12 bottoms are provided with shore pipe 3, and the reactor body top is provided with emergency disposal mouth 13, escape pipe 14.
Described reactor body is cylindric, and two cylinders different by internal diameter are formed by connecting by increaser, and the ratio of its internal diameter is 1: 2～4, and increaser becomes 50 °～70 ° with the angle δ of datum water level.The diameter ratio of the height of reactor body and reaction chamber 2 is 13～8: 1.The cross-sectional area S of reaction chamber 2
1With sludge settling chamber 9 the maximum cross-section area S
2Ratio be 1: 2～4, the cross-sectional area S of reaction chamber 2
1Cross-sectional area S with effuser 11
3Ratio be 27～30: 1, the cross-sectional area S of reaction chamber 2
1With return line 6 cross-sectional area S
4Ratio be 2～4: 1.The reducing pipe of collection chamber 8 and the angle ε between datum water level are 50 °～70 °, collection chamber 8 lower edges to rising pipe 7 centers be 18～22: 1 apart from a and rising pipe 7 centers to the ratio of effuser 11 vertical distance b.Sludge settling chamber 9 volumes are 1: 3～4 with the ratio of reactor body volume.The width of mud backflow seam 10 is 1～2cm.Cruciform gas gushes eliminator 4 and adopts stainless steel or plastic tab, and two thin slices are vertical mutually, and two thin slices are horizontal by 40 °～50 ° inclinations.Angle β between division plate 15 and datum water level is 25 °～35 °.Angle β between return line 6 upper ends and datum water level is 25 °～35 °, and the angle γ between return line 6 lower ends and datum water level is 40 °～50 °.
The air lift type self-circulating anaerobic reactor can be made up by synthetic glass and steel plate.Seed sludge is added to the reaction chamber via gas-liquid separation chamber, effuser and collection chamber from the emergency disposal mouth.Waste water is the complete mixing flow attitude and is entered from the reaction chamber bottom center by water inlet pipe, reacts in reaction chamber, produces biogas.Be carried into the mud mixture on top by biogas, collect by collection chamber, realize mud, water, the triphasic first step separation of gas, part muddy water gas mixture is brought into gas-liquid separation chamber by effuser, realizes mud, water, gas triphasic second stage separation, and the mud mixture after the separation is back in the reaction chamber by return line, realize self-circulation, strengthen substrate degradation, the negative impact due to the alleviation weak point flows, thereby the steady running of assurance reactor.After sewage is handled in reaction chamber, reflux the seam by-pass flow to the sludge settling chamber through mud, precipitating sludge relies on gravity to be back to reaction chamber by mud backflow seam.Water outlet is drawn by rising pipe.
Claims (9)
1. a gas-lifting type self-circulating anaerobic bioreactor is characterized in that it has reactor body, is divided into reaction chamber (2), collection chamber (8), gas-liquid separation chamber (12) in the reactor body from top to bottom, the outer sludge settling chamber (9) that is provided with of collection chamber (8); Be provided with shore pipe (3) in reaction chamber (2) bottom, be provided with water inlet pipe (1), equidistantly in the middle of reaction chamber (2) be provided with two cruciform gas and gush eliminator (4) in reaction chamber (2) bottom; Be provided with mud backflow seam (10) between collection chamber (8) lower edge and the reactor body increaser, collection chamber (8) upper end is a reducing pipe, collection chamber (8) reducing pipe upper end is provided with effuser (11), collection chamber (8) reducing pipe upper end is provided with inclined clapboard (15), and inclined clapboard (15) is separated into gas-liquid separation chamber (12) and collection chamber (8), sludge settling chamber (9) with the reactor body upper end; Gas-liquid separation chamber (12) bottom is provided with return line (6), and return line (6) lower end and reaction chamber (2) bottom join; Be provided with a plurality of thief holes (5) on reactor body and return line, top, sludge settling chamber (9) is provided with rising pipe (7), and gas-liquid separation chamber (12) bottom is provided with shore pipe (3), and the reactor body top is provided with emergency disposal mouth (13), escape pipe (14).
2. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1, it is characterized in that: described reactor body is cylindric, two cylinders different by internal diameter are formed by connecting by increaser, the ratio of its internal diameter is 1: 2～4, and increaser becomes 50 °～70 ° with the angle δ of datum water level.
3. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1 is characterized in that: the diameter ratio of the height of described reactor body and reaction chamber (2) is 13～8: 1; The cross-sectional area S of reaction chamber (2)
1With sludge settling chamber (9) the maximum cross-section area S
2Ratio be 1: 2～4, the cross-sectional area S of reaction chamber (2)
1Cross-sectional area S with effuser (11)
3Ratio be 27～30: 1, the cross-sectional area S of reaction chamber (2)
1With return line (6) cross-sectional area S
4Ratio be 2～4: 1.
4. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1, it is characterized in that: the reducing pipe of described collection chamber (8) and the angle ε between datum water level are 50 °～70 °, collection chamber (8) lower edge to rising pipe (7) center be 18～22: 1 apart from a and rising pipe (7) center to the ratio of the vertical distance b of effuser (11).
5. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1 is characterized in that: described sludge settling chamber (9) volume is 1: 3～4 with the ratio of reactor body volume.
6. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1 is characterized in that: the width of described mud backflow seam (10) is 1～2cm.
7. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1 is characterized in that: described cruciform gas gushes eliminator (4) and adopts stainless steel or plastic tab, and two thin slices are vertical mutually, and two thin slices are horizontal by 40 °～50 ° inclinations.
8. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1 is characterized in that: the angle β between described division plate (15) and datum water level is 25 °～35 °.
9. a kind of gas-lifting type self-circulating anaerobic bioreactor according to claim 1, it is characterized in that: the angle β between described return line (6) upper end and datum water level is 25 °～35 °, and the angle γ between return line (6) lower end and datum water level is 40 °～50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201057271U CN201049909Y (en) | 2007-01-22 | 2007-01-22 | Air-lift type self-circulating anaerobic bioreactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201057271U CN201049909Y (en) | 2007-01-22 | 2007-01-22 | Air-lift type self-circulating anaerobic bioreactor |
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| CN201049909Y true CN201049909Y (en) | 2008-04-23 |
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| CNU2007201057271U Expired - Fee Related CN201049909Y (en) | 2007-01-22 | 2007-01-22 | Air-lift type self-circulating anaerobic bioreactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448787C (en) * | 2007-01-22 | 2009-01-07 | 浙江大学 | Gas-lifting type self-circulating anaerobic bioreactor |
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2007
- 2007-01-22 CN CNU2007201057271U patent/CN201049909Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100448787C (en) * | 2007-01-22 | 2009-01-07 | 浙江大学 | Gas-lifting type self-circulating anaerobic bioreactor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20100222 |