CN103539259A - Internal and external circulation type high-efficiency anaerobic reactor - Google Patents
Internal and external circulation type high-efficiency anaerobic reactor Download PDFInfo
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- CN103539259A CN103539259A CN201310438803.0A CN201310438803A CN103539259A CN 103539259 A CN103539259 A CN 103539259A CN 201310438803 A CN201310438803 A CN 201310438803A CN 103539259 A CN103539259 A CN 103539259A
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention relates to an internal and external circulation type high-efficiency anaerobic reactor which is characterized by comprising a reactor main body which is of a columnar structure, wherein the inside of the reactor main body sequentially comprises a mixing region, a first anaerobic region, a second anaerobic region, a gas-liquid separating region and an external circulation region from bottom to top, a first-stage three-phase separator is arranged at the upper part of the first anaerobic reaction region, a second-stage three-phase separator is arranged at the upper part of the second anaerobic reaction region, the gas-liquid separation region is provided with a gas-liquid separator, and the external circulation region comprises an external circulation pipeline connected between the mixing region and the second anaerobic region, and an external circulation water pump. The internal and external circulation high-efficiency anaerobic reactor has the advantages of small occupation area, high organic load, strong impaction resistance capacity, relatively stable performance and simplicity in operation and management.
Description
Technical field
The present invention relates to inner-outer circulation high efficiency anaerobic reactor, belong to anaerobic reactor technical field of structures.
Background technology
Anaerobic reactor is a kind of efficient multistage inner circulation reactor, existing anaerobic reactor have take up an area large, organic loading is low, impact resistance is not strong, the defects such as unstable properties, operational administrative complexity.
Summary of the invention
The object of the invention is to solve the weak point that above-mentioned prior art exists, provide that a kind of occupation of land is little, organic loading is high, strong shock resistance, stable performance, the simple and direct reliable inner-outer circulation high efficiency anaerobic reactor of operational administrative.
Inner-outer circulation high efficiency anaerobic reactor IECAR(Internal and external circulation anaerobIECAR reactor) be high efficiency anaerobic reactor of new generation, waste water flows from bottom to top in reactor, pollutent is by bacterial adsorption degraded, and the water purifying flows out from reactor top.
The present invention is achieved by the following technical solutions:
Inner-outer circulation high efficiency anaerobic reactor, its special character is to comprise the reactor body 1 that is columnar structure, described reactor body 1 inside from bottom to top includes mixing zone A successively, the first anaerobic zone B, the second anaerobic zone C, gas-liquid separation zone D and outer circulation district E, the top of described the first anaerobic zone B is provided with one-level triphase separator 10, the top of described the second anaerobic reaction district C is provided with secondary triphase separator 11, described gas-liquid separation zone D is provided with gas-liquid separator 12, described outer circulation district E comprises external circulation line 13 and the outer circulation water pump 14 being connected between mixing zone A and the second anaerobic zone C,
Described mixing zone A is positioned at the bottommost of reactor body 1, and the water inlet pipe 2-1 being provided with by outside is connected with its inner set cyclone water distributor 2;
Between described one-level triphase separator 10 and gas-liquid separator 12, be communicated with for promoting the one-level biogas pipe 4 of biogas; Between described secondary triphase separator 11 and gas-liquid separator 12, be communicated with for promoting the secondary biogas pipe 6 of biogas; Between described gas-liquid separator 12 and described mixing zone A, be communicated with the return line 3 refluxing for muddy water;
The upper end of described external circulation line 13 is connected with the water shoot for the treatment of of the secondary triphase separator 11 of the second anaerobic zone C, and the lower end of described external circulation line 13 is connected with the cyclone water distributor 2 of mixing zone A;
The material that described one-level triphase separator 10 and secondary triphase separator 11 adopt is high poly-anticorrosion pure PP sheet material;
Described reactor body 1 outer cylinder body is covered with polyurethane foamed thermal-insulating layer and thick color steel outward.
Inner-outer circulation high efficiency anaerobic reactor of the present invention is a kind of efficient multistage inner circulation reactor, compare with existing anaerobic reactor, it have occupation of land less, organic loading is high, impact resistance is stronger, performance is more stable, operational administrative is simpler.High concentrated organic wastewater when COD is 10000-15000mg/1, the general volumetric loading of traditional reactor is 5-8kgCOD/m
3, and the application's anaerobic reactor volumetric loading rate can reach 15-30kgCOD/m
3.
Accompanying drawing explanation
Fig. 1: be structure of reactor overall schematic of the present invention.
Embodiment
Referring to accompanying drawing, provide the specific embodiment of the present invention, be used for formation of the present invention to be further described.
The inner-outer circulation high efficiency anaerobic reactor reference drawing of the present embodiment, comprise the reactor body 1 that is columnar structure, described reactor body 1 inside from bottom to top includes mixing zone A successively, the first anaerobic zone B, the second anaerobic zone C, gas-liquid separation zone D and outer circulation district E, the top of described the first anaerobic zone B is provided with one-level triphase separator 10, the top of described the second anaerobic reaction district C is provided with secondary triphase separator 11, described gas-liquid separation zone D is provided with gas-liquid separator 12, described outer circulation district E comprises external circulation line 13 and the outer circulation water pump 14 being connected between mixing zone A and the second anaerobic zone C, described mixing zone A is positioned at the bottommost of reactor body 1, and the water inlet pipe 2-1 being provided with by outside is connected with its inner set cyclone water distributor 2, between described one-level triphase separator 10 and gas-liquid separator 12, be communicated with for promoting the one-level biogas pipe 4 of biogas, between described secondary triphase separator 11 and gas-liquid separator 12, be communicated with for promoting the secondary biogas pipe 6 of biogas, between described gas-liquid separator 12 and described mixing zone A, be communicated with the return line 3 refluxing for muddy water, the upper end of described external circulation line 13 is connected with the water shoot for the treatment of of the secondary triphase separator 11 of the second anaerobic zone C, and the lower end of described external circulation line 13 is connected with the cyclone water distributor 2 of mixing zone A, the material that described one-level triphase separator 10 and secondary triphase separator 11 adopt is high poly-anticorrosion pure PP sheet material.
Mixing zone: the mud mixture refluxing in reactor bottom water inlet, granule sludge and gas-liquid separation zone and outer circulation water effectively Ci district mix.
The first anaerobic zone: the mud mixture that mixing zone forms enters this district, and under high concentration sludge effect, most of organism is converted into biogas.The violent disturbance of mixed solution upwelling and biogas makes mud in this reaction zone be expansion and fluidized state, has strengthened muddy water Surface Contact, and mud is keeping high activity therefrom.Along with increasing of biogas output, a part of mud mixture is the gas-liquid separation zone to top by biogas-lift.
Gas-liquid separation zone: the biogas in the mixture being raised is in this and mud-water separation and derive treatment system, mud mixture turns back to mixing zone bottom along return line, fully mix with mud, water inlet and the external reflux water of reactor bottom, realized the inside and outside circulation of mixed solution.
The second anaerobic zone: the waste water after process the first anaerobic zone, except a part is by biogas-lift, remaining all enters the second anaerobic zone by triphase separator.This district's sludge concentration is lower, and in waste water, most of organism is degraded in the first anaerobic zone, so biogas generation is less.Biogas imports gas-liquid separation zone by biogas pipe, and very little to the disturbance of the second anaerobic zone, this stop that is mud provides favourable condition.
Outer circulation district: adopt pump to promote the draining for the treatment of of separator well from the secondary triphase separator bottom of the second anaerobic zone and enter again bottom water-distributing device, outer circulation water, internal recycle water and water are fully mixed, dilution comes water concentration and poisonous element etc. greatly, more makes the load of anaerobism greatly improve.
Working process: waste water enters in the cyclone water distributor 2 of reactor mixing zone A through water inlet pipe 2-1, after evenly mixing with the muddy water of return line 3 circulations, enter in the first anaerobic zone B, most COD is degraded to biogas, biogas is collected by one-level triphase separator 10 and the separated rear air lift that produces, drive water and mud to move upward simultaneously, biogas is sent in gas-liquid separator 12 via one-level biogas pipe 4, by gas-liquid separator 12 tops, collected, remaining mud and water reenter mixing zone by return line 3 to be mixed; The water outlet of the first anaerobic zone in the second anaerobic zone by advanced treatment, remaining biodegradable COD is removed, the biogas producing is collected by top secondary triphase separator 11 and is separated, sends in the gas-liquid separator 12 at top via secondary upcast 6, realizes the separated of biogas and collects.The settling tank of waste water after secondary triphase separator 11 is processed in its underpart carries out solid-liquid separation, and as treating that draining is again in the water distributor of mixing zone bottom outer circulation water pump 14 pumps into, outer circulation water, internal recycle water and water are fully mixed, and dilution comes water concentration and poisonous element greatly.
From reactor principle of work, reactor is realized sludge retention time by two-layer triphase separator and is greater than hydraulic detention time, obtains high sludge concentration; Violent disturbance by a large amount of biogas and inner-outer circulation, fully contacts muddy water, obtains good mass transfer effect.
The structure of reactor of the present invention and principle of work thereof have determined that it is having more advantage than other reactor aspect control anaerobic treatment influence factor.
(1) volumetric loading is high: in IECAR reactor, sludge concentration is high, and microbial biomass is large, and has inner-outer circulation, and mass transfer effect is good, and water inlet organic loading can surpass the more than 3 times of common anaerobic reactor.
(2) reduce investment outlay and floor space: IECAR reactor volume rate of load condensate exceeds 3 times of left and right of common UASB reactor, and its volume is equivalent to about 1/4-1/3 of common response device, greatly reduces the initial cost of reactor; And IECAR reactor aspect ratio very large (being generally 3-8), so floor space is few.
(3) capacity of resisting impact load is strong: while processing low concentration wastewater (COD=2000-3000mg/L), reactor inner-outer circulation flow can reach 2-3 times of flooding quantity; While processing high-concentration waste water (COD=10000-15000mg/L), inner-outer circulation flow can reach 10-15 times of flooding quantity.A large amount of recirculated water and water inlet fully mix, and the objectionable impurities in former water is fully diluted, and greatly reduce the impact of poisonous substance on anaerobic digestion process.
(4) anti-low temperature ability is strong: temperature is mainly the impact on digestion rate on the impact of anaerobic digestion.IECAR reactor is owing to containing a large amount of microorganisms, and temperature becomes no longer significantly on the impact of anaerobic digestion and be serious.Conventionally the anaerobic digestion of IECAR reactor can be carried out under normal temperature condition (20-25 ℃), has reduced like this difficulty of digestion insulation, has saved energy.
(5) have the ability of buffer pH value: internal recycle flow is equivalent to the effluent recycling of the 1st anaerobic zone, the basicity that can utilize COD to transform, plays shock absorption to pH value, makes pH value in reactor keep optimum regime, also can reduce the throwing alkali number of water inlet simultaneously.
(6) inside and outside automated cycle: the backflow in conjunction with common anaerobic reactor realizes by external pressurized, adding that IECAR reactor usings the biogas self producing and realize mixed solution inner-outer circulation as the power promoting, reduces labour intensity greatly.
(7) stable water outlet is good: utilize secondary UASB serial graded anaerobic treatment, can compensate the high disadvantageous effect producing of K s in anaerobic process.Van Lier was proof in 1994, and reactor classification meeting reduces water outlet VFA concentration, extended the biological residence time, and reaction is stablized.
(8) start-up period is short: in IECAR reactor, sludge activity is high, and biological propagation is fast, for fast start up of reactor provides favourable condition.The IECAR reactor start-up cycle was generally about 40 days, and common UASB start-up period reaches 4～6 months.
(9) biogas utilization is worth high: the biogas purity that reactor produces is high, and CH4 is that 70%～80%, CO2 is 20%～30%, and other organism is 1%～5%, can be used as fuel, generating etc. and is used.
(10) my company of triphase separator develops and adopts high corrosion resistance, long service life, the density poly-anticorrosion PP board making of height little, easy for installation to form; Abandon and adopt Q235 material and glass steel material in the past; Triphase separator adopts two layers of mounting structure, has accomplished 3-5 layers of three phase separation plate (three-phase-water, gas, mud) in every layer, makes three-phase reach colleges and universities' separating effect.
(11) water-distributing device adopts eddy flow water distribution uniformity device, abandons pipeline tapping water distribution in the past, make water distribution more evenly, muddy water contact is more abundant.
(12) consider practical, low-cost, easy to operate, attractive in appearance effect, anaerobism is observed stair and is adopted vertical winding stair to be made.
(13) to anaerobism data, control is more rapid automatized, as PH meter, thermometer, test MLSS instrument, test CH are installed
4high definition, the accurate digital displays such as under meter, test water inlet, return flow meter.
Claims (6)
1. inner-outer circulation high efficiency anaerobic reactor, it is characterized in that comprising the reactor body (1) that is columnar structure, described reactor body (1) inside from bottom to top includes mixing zone (A) successively, the first anaerobic zone (B), the second anaerobic zone (C), gas-liquid separation zone (D) and outer circulation district (E), the top of described the first anaerobic zone (B) is provided with one-level triphase separator (10), the top in described the second anaerobic reaction district (C) is provided with secondary triphase separator (11), described gas-liquid separation zone (D) is provided with gas-liquid separator (12), described outer circulation district (E) comprises external circulation line (13) and the outer circulation water pump (14) being connected between mixing zone (A) and the second anaerobic zone (C).
2. inner-outer circulation high efficiency anaerobic reactor as claimed in claim 1, is characterized in that described mixing zone (A) is positioned at the bottommost of reactor body (1), and the water inlet pipe being provided with by outside (2-1) is connected with its inner set cyclone water distributor (2).
3. inner-outer circulation high efficiency anaerobic reactor as claimed in claim 1, is characterized in that being communicated with for promoting the one-level biogas pipe (4) of biogas between described one-level triphase separator (10) and gas-liquid separator (12); Between described secondary triphase separator (11) and gas-liquid separator (12), be communicated with for promoting the secondary biogas pipe (6) of biogas; Between described gas-liquid separator (12) and described mixing zone (A), be communicated with the return line (3) refluxing for muddy water.
4. inner-outer circulation high efficiency anaerobic reactor as claimed in claim 1, the water shoot for the treatment of that it is characterized in that the upper end of described external circulation line (13) and the secondary triphase separator (11) of the second anaerobic zone (C) is connected, and the lower end of described external circulation line (13) is connected with the cyclone water distributor (2) of mixing zone (A).
5. inner-outer circulation high efficiency anaerobic reactor as claimed in claim 1, is characterized in that the material that described one-level triphase separator (10) and secondary triphase separator (11) adopt is high poly-anticorrosion pure PP sheet material.
6. inner-outer circulation high efficiency anaerobic reactor as claimed in claim 1, is characterized in that described reactor body (1) outer cylinder body is covered with polyurethane foamed thermal-insulating layer and thick color steel outward.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437496A (en) * | 2018-12-29 | 2019-03-08 | 科盛环保科技股份有限公司 | A kind of energy-saving Treatment of Beer Wastewater system |
| CN112897688A (en) * | 2021-01-25 | 2021-06-04 | 南京环保产业创新中心有限公司 | HIC anaerobic reactor |
| CN114031180A (en) * | 2021-11-30 | 2022-02-11 | 广州瑞豪环保科技有限公司 | Novel IC anaerobic reactor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602546A (en) * | 2009-07-13 | 2009-12-16 | 安徽丰原生物化学股份有限公司 | A kind of anaerobic reactor reaches wastewater treatment method |
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- 2013-09-25 CN CN201310438803.0A patent/CN103539259A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602546A (en) * | 2009-07-13 | 2009-12-16 | 安徽丰原生物化学股份有限公司 | A kind of anaerobic reactor reaches wastewater treatment method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437496A (en) * | 2018-12-29 | 2019-03-08 | 科盛环保科技股份有限公司 | A kind of energy-saving Treatment of Beer Wastewater system |
| CN109437496B (en) * | 2018-12-29 | 2019-08-20 | 科盛环保科技股份有限公司 | A kind of energy-saving Treatment of Beer Wastewater system |
| CN112897688A (en) * | 2021-01-25 | 2021-06-04 | 南京环保产业创新中心有限公司 | HIC anaerobic reactor |
| CN114031180A (en) * | 2021-11-30 | 2022-02-11 | 广州瑞豪环保科技有限公司 | Novel IC anaerobic reactor |
| CN114031180B (en) * | 2021-11-30 | 2023-08-29 | 广州瑞豪环保科技有限公司 | IC anaerobic reactor |
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Application publication date: 20140129 |