CN102583733A - Anaerobic denitration fluidized bed reactor - Google Patents
Anaerobic denitration fluidized bed reactor Download PDFInfo
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- CN102583733A CN102583733A CN201210085742XA CN201210085742A CN102583733A CN 102583733 A CN102583733 A CN 102583733A CN 201210085742X A CN201210085742X A CN 201210085742XA CN 201210085742 A CN201210085742 A CN 201210085742A CN 102583733 A CN102583733 A CN 102583733A
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Abstract
The invention discloses an anaerobic denitration fluidized bed reactor. The anaerobic denitration fluidized bed reactor comprises a three-phase separator, a reaction chamber and a water flow distributor, wherein a water outlet is formed in the upper part of the reaction chamber; a baffling plate is arranged above the middle part of the reaction chamber; the space below the baffling plate is a stable water flow area; the space in the reaction chamber between the upper edge and the lower edge of the baffling plate is a sludge settling area; fine carriers are filled in the reaction chamber; and anaerobic microorganisms are attached to the surfaces of the fine carriers to form a microorganism film enclosing the fine carriers. The defect that the traditional anaerobism requires a high chemical oxygen demand (COD) load is overcome by the reactor; the removal emphasis lies in the removal rate of nitric nitrogen; and the requirement on the concentration of COD is not high, but the concentration of the COD must be enough to satisfy the needs of energy required by the reproduction and the growth of the microorganisms.
Description
Technical field
The present invention relates to a kind of anaerobic reactor that is used for wastewater treatment, relate in particular to a kind of anaerobism denitration fluidized bed reactor.
Background technology
COD is claimed chemical oxygen demand again, and English name chemical oxygen demand is called for short COD.Be to utilize chemical oxidizing agent,,,, calculate the consumption of oxygen then according to the amount of residual oxygenant like organism, nitrite, ferrous salt, sulfide etc. with an oxidisable substance oxygenolysis in the water like potassium permanganate.It is the same with biochemical oxygen demand, is the important indicator of expression water pollution degree.The unit of COD is ppm or mg/litre, and its value is more little, explains that the water pollution degree is light more.The tradition anaerobic reactor is mainly with removing the COD in the water, simultaneously owing to reasons such as mikrobe self Synthesis consume a spot of nitric nitrogen.But for the nitric nitrogen waste water of high density, like explosive factory waste water, high-nitrate state nitrogen waste water such as silicon processing industry waste water, traditional anaerobic reactor can not have very high clearance to nitric nitrogen.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned prior art; Provide a kind of clearance of nitric nitrogen high; Concentration to COD does not have high requirement simultaneously, and can satisfy the grow anaerobism denitration fluidized bed reactor of necessary energy requirement of microbial reproduction.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of anaerobism denitration fluidized bed reactor comprises being used for isolating triphase separator of gas-liquid solid phase and reaction chamber that reaction chamber top is provided with water outlet; It is characterized in that: also be provided with water distributor, said water distributor is arranged in the reaction chamber, and is positioned at the reaction chamber bottom, and the inlet of water distributor stretches out outside the reaction chamber; The top, middle part of reaction chamber is provided with baffler, and the space of the baffler below in the reaction chamber is the stationary flow district, and the space between the upper limb of baffler and the lower rim in the pairing reaction chamber is the sludge settling district; Said triphase separator comprises separation hood and separates guide; The separation hood upper end is provided with pneumatic outlet, and the lower openings of separation hood covers on the place suitable for reading of reaction chamber, and the lower openings of separation hood stretches in the reaction chamber; Separating guide is connected to form by the annular guide on top and the horn-like guide of bottom; The annular guide is positioned at separation hood, leaves the space between the lower rim of horn-like guide and the ramp of baffler; Be filled with tiny carrier in the reaction chamber, the surface attachment of tiny carrier has anaerobion, forms the microbial film that surrounds tiny carrier.
As the further improved technical scheme of the present invention, said tiny carrier is many spaces of high-density inorganic particle, and said anaerobion is a denitrifying bacterium.
As the further improved technical scheme of the present invention, on the reaction chamber wall below the water outlet, be provided with acclivitous overflow plate, the upper limb of overflow plate is higher than the upper limb of water outlet, is lower than the upper limb of annular guide, also is higher than the lower rim of cage simultaneously.
As the further improved technical scheme of the present invention, said baffler is the trilateral baffler.
As the further improved technical scheme of the present invention, also comprise water pump and the water-in that is arranged on the reaction chamber outer surface of upper, water-in is connected with the inlet of water pump, and the outlet of water pump is connected with the inlet of water distributor.
As the further improved technical scheme of the present invention, water distributor comprises current house steward and at least two current distribution pipings; The sealing of current house steward one end, the other end is the water inlet of water distributor, current distribution piping one end opening, the other end is connected with the current house steward.
The present invention adopts anaerobism denitration fluid bed biologic treating technique; Promptly be under system's anoxybiotic condition, utilize and fill tiny high specific gravity carrier in the reactive tank, supply denitrifying bacteria to adhere to so that huge surface area to be provided; Increase system sludge concentration greatly; And utilize the fast rise current to make biofilm carrier be the fluidization state, increase the matrix transfer rate, and then improve the biological denitrification processing efficiency.In a word the present invention changed traditional anaerobism must be high the shortcoming of COD load, removal has been focused on the clearance of nitric nitrogen, the concentration of COD is not had high requirement, but must be able to satisfy the microbial reproduction necessary energy requirement of growing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention.
Embodiment
Embodiment 1
Referring to Fig. 1, this anaerobism denitration fluidized bed reactor comprises being used for isolating triphase separator 1 of gas-liquid solid phase and reaction chamber 2 that reaction chamber 2 tops are provided with water outlet 3; Also be provided with water distributor 4, said water distributor 4 is arranged in the reaction chamber 2, and is positioned at reaction chamber 2 bottoms, and the inlet 6 of water distributor 4 stretches out outside the reaction chamber 2; The top, middle part of reaction chamber 2 is provided with baffler 5, and the space of baffler 5 belows in the reaction chamber 2 is stationary flow district 21, and the space between the upper limb of baffler 5 and the lower rim in the pairing reaction chamber 2 is sludge settling district 7; Said triphase separator 1 comprises separation hood 8 and separates guide 9; Separation hood 8 upper ends are provided with pneumatic outlet 10, and the lower openings 11 of separation hood 8 covers on the place suitable for reading of reaction chamber 2, and the lower openings 11 of separation hood 8 stretches in the reaction chamber 2; Separating guide 9 is connected to form by the annular guide 12 on top and the horn-like guide 13 of bottom; Annular guide 12 is positioned at separation hood 8, leaves the space between the lower rim 14 of horn-like guide 13 and the ramp 15 of baffler 5; Be filled with tiny carrier 24 in the reaction chamber, the surface attachment of tiny carrier 24 forms the microbial film that surrounds tiny carrier 24 by anaerobion.Said tiny carrier 24 is many spaces of high-density inorganic particle, and said anaerobion is a denitrifying bacterium.
As preferred version, on 2 inwalls of the reaction chamber below the water outlet 3, be provided with acclivitous overflow plate 16, the upper limb of overflow plate 16 is higher than the upper limb of water outlet 3, is lower than the upper limb of annular guide 12, also is higher than the lower rim of cage 8 simultaneously.Said baffler 5 is the trilateral baffler.The water-in 18 that also comprises water pump 17 and be arranged on reaction chamber 2 outer surface of upper, water-in 18 is connected with the inlet of water pump 17, and the outlet of water pump 17 is connected with the inlet 6 of water distributor 4.Water distributor 4 comprises current house steward 19 and at least two current distribution pipings 20; The sealing of current house steward 19 1 ends, the other end is the water inlet of water distributor 4, current distribution piping 20 1 end openings, the other end is connected with current house steward 19.
The working process of this anaerobism denitration fluidized bed reactor is:
At first, when waste water got into reaction chamber 2 by the bottom, waste water flowed from lower to upper; Then supply the tiny carrier 24 of microorganic adhesion in the reaction chamber 2; Be many spaces of high-density inorganic particle under the election of ascending current, suspended state, i.e. fluidization state are formed on bottom in reaction chamber 2; And denitrifying bacterium is promptly attached to the hole or the surface of tiny carrier; Prey on the organism around it and grow, thereby make the tiny carrier 24 peripheral microbial films that form, the microbial film 25 of whole so tiny carrier 24 and periphery thereof has constituted a carrier mud granule.
Secondly; The main purpose of triphase separator is being collected gas, and creates a stationary flow district 21, when the solid mud 22 of meeting band bubble 23; Be the carrier mud granule force with other carrier mud granule or baffler 5 collisions when rising consolidate, gas two is separated; Solid mud 22 after the separation, promptly the carrier mud granule returns stationary flow district 21, and gas is discharged via pneumatic outlet 10; Hypogene water flow through successively stationary flow district 21 and sludge settling district 7 get back to carrier mud granule deposition in the reaction chamber 2.When the water surface in the reaction chamber 2 was higher than overflow plate 16, then water flow through overflow plate 16, discharged reaction chamber 2 from water outlet 3.Therefore, when water outlet 3 there are flowing out, the liquid level in the reaction chamber 2 just in time was higher than the lower rim of separation hood 8, was lower than the upper limb that separates guide 9 simultaneously.
This anaerobism denitration fluidized bed reactor is utilized anaerobism denitration fluid bed biologic treating technique; Promptly utilize and fill tiny carrier in the reactive tank; Providing vast surface-area to adhere to, and utilize quick current to make its fluidised a kind of treatment of Organic Wastewater technology by anaerobion.Anaerobism denitration fluid bed biologic treating technique is followed the denitrification equation:
5C (organism)+4NO
3-+2H
2O=2N
2↑+5CO
2↑+4OH-
Anaerobism denitration fluid bed system has the following advantages: one of which, NO
3Advantages such as-N load is high, startup is fast, energy consumption is low, capacity of resisting impact load is strong.Its two, can under high hydraulic load, move.Its three, high-concentration waste water and the waste water that contains the Biostatic composition all are suitable for.Operation under high hydraulic load.Its four, sludge concentrations are high in the reaction chamber 2, volume load is high, treatment trough is tall and thin shape, saves land used.The scope of application of this anaerobism denitration fluidized bed reactor has: wastewater from chemical industry, high density nitrate salt, acryl slurry, trevira, polyester resin etc.; Single, polysilicon processing industry waste water; Be fit to the A section in the replacement A/O technology; Explosive factory waste water etc.
Claims (6)
1. an anaerobism denitration fluidized bed reactor comprises being used for isolating triphase separator of gas-liquid solid phase (1) and reaction chamber (2) that reaction chamber (2) top is provided with water outlet (3); It is characterized in that: also be provided with water distributor (4), said water distributor (4) is arranged in the reaction chamber (2), and is positioned at reaction chamber (2) bottom, and the inlet (6) of water distributor (4) stretches out outside the reaction chamber (2); (2 top, middle part is provided with baffler (5) to reaction chamber; The space of baffler (5) below in the reaction chamber (2) is stationary flow district (21), and the space between the upper limb of baffler (5) and the lower rim in the pairing reaction chamber (2) is sludge settling district (7); Said triphase separator (1) comprises separation hood (8) and separates guide (9); Separation hood (8) upper end is provided with pneumatic outlet (10), and the lower openings (11) of separation hood (8) covers on the place suitable for reading of reaction chamber (2), and the lower openings (11) of separation hood (8) stretches in the reaction chamber (2); Separating guide (9) is connected to form by the annular guide (12) on top and the horn-like guide (13) of bottom; Annular guide (12) is positioned at separation hood (8), leaves the space between the lower rim (14) of horn-like guide (13) and the ramp (15) of baffler (5); Reaction chamber is filled with tiny carrier in (2), and the surface attachment of tiny carrier has anaerobion, forms the microbial film that surrounds tiny carrier.
2. anaerobism denitration fluidized bed reactor according to claim 1 is characterized in that: said tiny carrier is many spaces of high-density inorganic particle, and said anaerobion is a denitrifying bacterium.
3. anaerobism denitration fluidized bed reactor according to claim 1; It is characterized in that: on reaction chamber (2) inwall of water outlet (3) below, be provided with acclivitous overflow plate (16); The upper limb of overflow plate (16) is higher than the upper limb of water outlet (3); Be lower than the upper limb of annular guide (12), also be higher than the lower rim of cage (8) simultaneously.
4. anaerobism denitration fluidized bed reactor according to claim 1 is characterized in that: said baffler (5) is the trilateral baffler.
5. anaerobism denitration fluidized bed reactor according to claim 1; It is characterized in that: the water-in (18) that also comprises water pump (17) and be arranged on reaction chamber (2) outer surface of upper; Water-in (18) is connected with the inlet of water pump (17), and the outlet of water pump (17) is connected with the inlet (6) of water distributor (4).
6. anaerobism denitration fluidized bed reactor according to claim 1 is characterized in that: water distributor (4) comprises current house steward (19) and at least two current distribution pipings (20); The sealing of current house steward (19) one ends, the other end is the water inlet of water distributor (4), current distribution piping (20) one end openings, the other end is connected with current house steward (19).
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| CN201210085742XA CN102583733A (en) | 2012-03-28 | 2012-03-28 | Anaerobic denitration fluidized bed reactor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951055A (en) * | 2014-04-30 | 2014-07-30 | 安徽大学 | Reactor and method for treating wastewater with low carbon nitrogen ratio by carrying out methanation and denitrification simultaneously |
| CN109761347A (en) * | 2019-02-28 | 2019-05-17 | 武汉理工大学 | Based on the denitrifying sewage plant Tailwater Depth denitrogenation method of anaerobe and device |
| CN110668570A (en) * | 2019-11-22 | 2020-01-10 | 山东默锐环境产业股份有限公司 | High-efficiency granular sludge anaerobic tower reactor |
| CN110980943A (en) * | 2019-12-14 | 2020-04-10 | 浙江永续环境工程有限公司 | Anaerobic flowing biological membrane reactor |
| CN114804527A (en) * | 2022-04-30 | 2022-07-29 | 齐鲁工业大学 | Movable upflow MBBR integrated sewage treatment equipment and system |
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| CN101054235A (en) * | 2007-04-28 | 2007-10-17 | 河北科技大学 | Three-phase separator for high efficiency anaerobic reactor |
| CN101066805A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Efficient anaerobic ammoxidation reactor |
| CN201056519Y (en) * | 2007-04-28 | 2008-05-07 | 河北科技大学 | Three-phase separator of upflow type anaerobic reactor |
| CN201056518Y (en) * | 2007-04-28 | 2008-05-07 | 河北科技大学 | Three-phase separator of upflow type anaerobic reactor |
| CN101643273A (en) * | 2009-08-28 | 2010-02-10 | 天津市农业资源与环境研究所 | Device and method applicable to anaerobic treatment of solid and liquid mixed sewage of breeding field |
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Patent Citations (8)
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| JPS62277196A (en) * | 1986-05-23 | 1987-12-02 | Sanki Eng Co Ltd | Microorganism reactor of fluidized bed type |
| KR20060019643A (en) * | 2004-08-28 | 2006-03-06 | 주식회사 세신청정 | Improvement of high rate anaerobic digestor to treat organic materials |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103951055A (en) * | 2014-04-30 | 2014-07-30 | 安徽大学 | Reactor and method for treating wastewater with low carbon nitrogen ratio by carrying out methanation and denitrification simultaneously |
| CN103951055B (en) * | 2014-04-30 | 2015-08-05 | 安徽大学 | The method of denitrification process low ratio of carbon to ammonium waste water while of methanation |
| CN109761347A (en) * | 2019-02-28 | 2019-05-17 | 武汉理工大学 | Based on the denitrifying sewage plant Tailwater Depth denitrogenation method of anaerobe and device |
| CN110668570A (en) * | 2019-11-22 | 2020-01-10 | 山东默锐环境产业股份有限公司 | High-efficiency granular sludge anaerobic tower reactor |
| CN110668570B (en) * | 2019-11-22 | 2022-03-04 | 山东默锐环境产业股份有限公司 | High-efficiency granular sludge anaerobic tower reactor |
| CN110980943A (en) * | 2019-12-14 | 2020-04-10 | 浙江永续环境工程有限公司 | Anaerobic flowing biological membrane reactor |
| CN110980943B (en) * | 2019-12-14 | 2022-02-18 | 浙江永续环境工程有限公司 | Anaerobic flowing biological membrane reactor |
| CN114804527A (en) * | 2022-04-30 | 2022-07-29 | 齐鲁工业大学 | Movable upflow MBBR integrated sewage treatment equipment and system |
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Application publication date: 20120718 |