CN105540837A - Three-section type biogas reactor - Google Patents
Three-section type biogas reactor Download PDFInfo
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- CN105540837A CN105540837A CN201610124131.XA CN201610124131A CN105540837A CN 105540837 A CN105540837 A CN 105540837A CN 201610124131 A CN201610124131 A CN 201610124131A CN 105540837 A CN105540837 A CN 105540837A
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- biogas
- anaerobic zone
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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
- C02F3/286—Anaerobic digestion processes including two or more steps
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a three-section type biogas reactor. The three-section type biogas reactor comprises a preliminary anaerobic zone, a main anaerobic zone and a methane bacterium separation zone, wherein a three-phase separator is arranged between the main anaerobic zone and the methane bacterium separation zone; the methane bacterium separation zone is communicated with the preliminary anaerobic zone through a vent pipeline; the preliminary anaerobic zone is communicated with the main anaerobic zone through a water pipeline. Wastewater pretreated in the preliminary anaerobic zone enters the main anaerobic zone and is mixed with anaerobic microorganisms in anaerobic sludge to have an organic matter biodegradation reaction, biogas is generated, the biogas and the sludge are separated by the three-phase separator, the biogas rises to the methane bacterium separation zone and enters the preliminary anaerobic zone to be mixed with the wastewater, fine methanogens in the biogas absorb and degrade the wastewater, so that the biogas and the methanogens are separated, and the biogas is discharged or is continuously used in the next step. The three-section type biogas reactor can totally recycle biogas energy and increase the granulation rate of methane bacteria, and has the advantages of simple structure, small occupied area, low investment cost, low maintenance rate, low power consumption, low operating cost, simplicity in operation and management and the like.
Description
Technical field
The present invention relates to the sewage treatment equipment in environmental technology field, in particular to a kind of syllogic marsh gas reactor.
Background technology
The bioremediation of waste water can be divided into aerobic biological process for treating and the large class of anaerobic biological treatment method two, and wherein can to process organic content lower for aerobic process, as sanitary wastewater and easy aerobic biodegradation waste water etc.; Anaerobic treatment mainly processes used water difficult to degradate, but simple anaerobic treatment is difficult to reach emission standard, will connect aerobic treatment after general.Except Biochemical method, wastewater treatment also has physico-chemical process, embrane method, electrochemical process etc.
Anaerobic waste water biological treatment refers to the effect by anaerobion (comprising facultative microbe) under the condition of free-dioxygen, complicated organic substance decomposing various in waste water is changed into the process of the materials such as methane and carbon dioxide.In the process of anaerobic biological treatment, complicated organic compound is decomposed, and is converted into simple, stable compound, releases energy simultaneously.Wherein, most energy occurs with the form of methane, and this is a kind of inflammable gas, recoverable.Only a small amount of organism is converted and synthesizes new cell integral part simultaneously, therefore relative aerobic method, anaerobic process mud rate of increase is much smaller.
By prior art, in the preceding units of anaerobic waste water biological treatment, adopt air aeration to stir or regulate, regulating water quality and the water yield, pre-acidified waste water, but in waste water, the dissolved oxygen of trace enters anaerobic reactor after being through artificial atmosphere, the methanogen of absolute anaerobic environment is needed to produce certain impact to anaerobic reactor, affect the redox potential of anaerobic reaction, also anaerobic reactor equipment is produced and certain have oxygen corrosion, easily occur the problems such as mud is loose, organic loading is low, poor processing effect.
Summary of the invention
Technical problem solved by the invention: in the preprocessing process of anaerobic waste water biological treatment, air aeration is adopted to stir or regulating water quality and the water yield, pre-acidified waste water, the dissolved oxygen of trace in waste water is caused to enter anaerobic reactor, impact the generation of methanogen, affect the redox potential of anaerobic reaction, corrosion anaerobic reactor equipment, cause that mud is loose, organic loading is low, poor processing effect.
For solving the problems of the technologies described above, the invention provides following technical scheme:
Syllogic marsh gas reactor, comprises the first chamber and the second chamber, establishes pre-anaerobic zone in described first chamber, establishes main anaerobic zone and methanobacteria disengaging zone in described second chamber, and be provided with mud in described main anaerobic zone, methanobacteria disengaging zone is positioned at the top of main anaerobic zone; Be provided with triphase separator between described main anaerobic zone and methanobacteria disengaging zone, described methanobacteria disengaging zone is communicated with pre-anaerobic zone through vent line, and described pre-anaerobic zone is communicated with main anaerobic zone through water-filled pipe; Described first chamber is offered the water-in that is communicated with pre-anaerobic zone and is separated rear methane outlet, and described second chamber offers the water outlet be communicated with methanobacteria disengaging zone.
By technique scheme, the principle of work of syllogic marsh gas reactor of the present invention is as follows: waste water enters in the pre-anaerobic zone of the first chamber through water-in, and in pre-anaerobic zone, pretreated waste water enters the main anaerobic zone of the second chamber through water-filled pipe; Waste water in main anaerobic zone with mud abundant hybrid reaction, produce biogas, sludge bulking, biogas stir mud, reinforcing mass transfer effect; Biogas is separated at triphase separator place with mud, and sludge retention is in main anaerobic zone, and the waste water after triphase separator is separated then flows into subsequent processing units by water outlet; Biogas is little due to density, continues to rise to methanobacteria disengaging zone, and enters the pre-anaerobic zone of the first chamber by vent line; In pre-anaerobic zone, biogas fully mixes with waste water, and the methanogen quick adsorption in small, broken bits carried secretly in biogas and degrading waste water, make biogas be separated with methanogen, and the biogas after separation is discharged by being separated rear methane outlet or continuing next step utilization.
Pass through technique scheme, the present invention adopts the biogas that in the second chamber, main anaerobic zone produces, through vent line to pre-anaerobic zone, waste water behind pre-anaerobic zone enters main anaerobic zone through water-filled pipe, there is methanobacteria biological respinse, methanobacteria is separated in methanobacteria disengaging zone, and the waste water after purification enters subsequent processing units; Thus realize pre-anaerobic zone, main anaerobic zone and be separated with the function of methanobacteria disengaging zone, play the advantage efficiency of each functional zone, and reactor is become one.Syllogic marsh gas reactor of the present invention all can not only reclaim biogas energy, improve methane flora granulating rate, and syllogic marsh gas reactor has the advantages such as structure is simple, floor space is little, input cost is low, maintenance rate is low, power consumption is low, running cost is low, operational administrative is simple; Specifically, syllogic marsh gas reactor of the present invention reaches more than 90% to organic degradation rate, and methane flora granulating rate improves more than 80%, and facility investment reduces 50%.
The dissolved oxygen that present invention efficiently solves the trace produced because using pneumatic blending in prior art enters anaerobic reactor and affects the redox potential of anaerobic reaction and anaerobic reactor equipment produced to the technical problem of certain corrosion.
As the one explanation of the present invention to pre-anaerobic zone, in pre-anaerobic zone, the methanogen quick adsorption in small, broken bits carried secretly in biogas and degrading waste water, simultaneously, most carbon dioxide solubilities in biogas are in water, improve supercarbonate and the carbonate alkalinity of waste water, avoid voltaile fatty acid in the accumulation of main anaerobic zone.
Illustrate the one of methanogen, methanobacteria as the present invention, described methanogen belongs to the archeobacteria in prokaryotic organism, and the microorganism that can generate methane is called methanogen; Described methanobacteria belongs to prokaryotic organism, is that obligate strictly anaerobic bacterium, growth and breeding are slow especially, culture of isolated is more difficult; Methanogen can not be survived having oxygen place, and therefore they can only be found in the environment lacking oxygen completely, only has methane phase and fermentative action can occur as when electron acceptor(EA) when only having carbon compound.By methanogenesis, organic waste can change into useful methane, i.e. biogas; Wherein, methanogenesis, also known as methane generation, refers to the pathways metabolism of Microbe synthesis methane, and in a lot of environment, this is the final step of organic matter degradation.
Illustrate the one of triphase separator as the present invention, described triphase separator is used for the upflow anaerobic sludge blanket reactor (UASB) in biological sewage process, in order to separating digesting gas, Digestive system and mud granule.Digestion gas autoreactor top is derived; The automatic landing of mud granule is settled down to the Sludge Bed of reactor bottom; Digestive system is from settling section water outlet.
As the present invention, the one of vent line is illustrated, described vent line comprise be separated before biogas pipe, the Marsh gas booster pump installed on biogas pipe before separation, with the biogas sparger being separated front biogas pipe and being communicated with; Described biogas sparger is positioned at the bottom of pre-anaerobic zone; Described biogas sparger comprises and is separated the biogas import that front biogas pipe is communicated with and the multiple methane outlets be communicated with pre-anaerobic zone.Wherein, biogas sparger is equivalent to one and distributes intermediary, and it is provided with a biogas import, and the quantity of methane outlet is determined according to pre-anaerobic zone size, and multiple methane outlet is uniformly distributed.As described above, biogas, by being separated front biogas pipe, pumps into pre-anaerobic zone by Marsh gas booster pump through biogas sparger.
As the present invention, the one of water-filled pipe is illustrated, described water-filled pipe comprises waste pipe, the lift pump be arranged on waste pipe, the water distributor that is communicated with waste pipe; Described water distributor is positioned at the bottom of main anaerobic zone; Described water distributor comprises the waste water inlet be communicated with waste pipe and the multiple wastewater outlets be communicated with main anaerobic zone.Wherein, water distributor is equivalent to one and distributes intermediary, and it is provided with a waste water inlet, and the quantity of wastewater outlet is determined according to main anaerobic zone size, and multiple wastewater outlet is uniformly distributed.As described above, in pre-anaerobic zone, pretreated waste water enters main anaerobic zone by waste pipe and water distributor after lift pump.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of syllogic marsh gas reactor of the present invention;
Fig. 2 is the two dimensional structure schematic diagram observing described syllogic marsh gas reactor gained in Fig. 1 from below.
Nomenclature in figure:
10, the first chamber; 11, pre-anaerobic zone; 12, water-in; 13, methane outlet after being separated;
20, the second chamber; 21, main anaerobic zone; 22, methanobacteria disengaging zone; 23, triphase separator; 24, water outlet;
30, vent line; 31, biogas pipe before being separated; 32, Marsh gas booster pump; 33, biogas sparger;
40, water-filled pipe; 41, waste pipe; 42, lift pump; 43, water distributor.
Embodiment
Composition graphs 1, Fig. 2, a kind of syllogic marsh gas reactor, comprise the first chamber 10 and the second chamber 20, pre-anaerobic zone 11 is established in described first chamber, main anaerobic zone 21 and methanobacteria disengaging zone 22 is established in described second chamber, be provided with mud in described main anaerobic zone, methanobacteria disengaging zone is positioned at the top of main anaerobic zone.
Be provided with triphase separator 23 between described main anaerobic zone and methanobacteria disengaging zone, described methanobacteria disengaging zone is communicated with pre-anaerobic zone through vent line 30, and described pre-anaerobic zone is communicated with main anaerobic zone through water-filled pipe 40; Described first chamber is offered the water-in 12 that is communicated with pre-anaerobic zone and is separated rear methane outlet 13, and described second chamber offers the water outlet 24 be communicated with methanobacteria disengaging zone.
Wherein, described vent line 30 comprise be separated before biogas pipe 31, the Marsh gas booster pump 32 installed on biogas pipe before separation, with the biogas sparger 33 being separated front biogas pipe 31 and being communicated with, described biogas sparger is positioned at the bottom of pre-anaerobic zone 11; Described biogas sparger comprises and is separated the biogas import that front biogas pipe is communicated with and the multiple methane outlets be communicated with pre-anaerobic zone.
Wherein, described water-filled pipe 40 comprises waste pipe 41, the lift pump 42 be arranged on waste pipe, the water distributor 43 that is communicated with waste pipe 41, and described water distributor is positioned at the bottom of main anaerobic zone 21; Described water distributor comprises the waste water inlet be communicated with waste pipe and the multiple wastewater outlets be communicated with main anaerobic zone.
In actually operating, with reference to figure 1, the workflow of syllogic marsh gas reactor of the present invention is as follows:
The first, waste water enters in the pre-anaerobic zone 11 of the first chamber 10 through water-in 12, and in pre-anaerobic zone 11, pretreated waste water enters the main anaerobic zone 21 of the second chamber 20 through water-filled pipe 40.
The second, waste water is hybrid reaction abundant with mud in main anaerobic zone 21, produces biogas, sludge bulking, and biogas stirs mud, reinforcing mass transfer effect.
3rd, biogas is separated at triphase separator 23 place with mud, and sludge retention is in main anaerobic zone 21, and the waste water after triphase separator 23 is separated then flows into subsequent processing units by water outlet 24; Biogas is little due to density, continues to rise to methanobacteria disengaging zone 22, and enters the pre-anaerobic zone 11 of the first chamber 10 by vent line 30.
4th, in pre-anaerobic zone 11, biogas fully mixes with waste water, and the methanogen quick adsorption in small, broken bits carried secretly in biogas and degrading waste water, make biogas be separated with methanogen, and the biogas after separation is discharged by being separated rear methane outlet 13 or continuing next step utilization.
Above content is only better embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (5)
1. syllogic marsh gas reactor, comprise the first chamber (10) and the second chamber (20), pre-anaerobic zone (11) is established in described first chamber, main anaerobic zone (21) and methanobacteria disengaging zone (22) are established in described second chamber, be provided with mud in described main anaerobic zone, methanobacteria disengaging zone is positioned at the top of main anaerobic zone; It is characterized in that:
Triphase separator (23) is provided with between described main anaerobic zone and methanobacteria disengaging zone, described methanobacteria disengaging zone is communicated with pre-anaerobic zone through vent line (30), and described pre-anaerobic zone is communicated with main anaerobic zone through water-filled pipe (40); Described first chamber offer the water-in (12) that is communicated with pre-anaerobic zone and be separated after methane outlet (13), described second chamber offers the water outlet (24) be communicated with methanobacteria disengaging zone.
2. syllogic marsh gas reactor as claimed in claim 1, it is characterized in that: described vent line (30) comprise be separated before biogas pipe (31), the Marsh gas booster pump (32) installed on biogas pipe before separation, biogas is pumped into pre-anaerobic zone (11).
3. syllogic marsh gas reactor as claimed in claim 2, it is characterized in that: described vent line (30) also comprises and the biogas sparger (33) being separated front biogas pipe (31) and being communicated with, and described biogas sparger is positioned at the bottom of pre-anaerobic zone (11); Described biogas sparger comprises and is separated the biogas import that front biogas pipe is communicated with and the multiple methane outlets be communicated with pre-anaerobic zone.
4. syllogic marsh gas reactor as claimed in claim 1, is characterized in that: described water-filled pipe (40) comprises waste pipe (41), the lift pump (42) be arranged on waste pipe.
5. syllogic marsh gas reactor as claimed in claim 4, it is characterized in that: described water-filled pipe (40) also comprises the water distributor (43) be communicated with waste pipe (41), and described water distributor is positioned at the bottom of main anaerobic zone (21); Described water distributor comprises the waste water inlet be communicated with waste pipe and the multiple wastewater outlets be communicated with main anaerobic zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610124131.XA CN105540837A (en) | 2016-03-04 | 2016-03-04 | Three-section type biogas reactor |
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| CN201610124131.XA CN105540837A (en) | 2016-03-04 | 2016-03-04 | Three-section type biogas reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497984A (en) * | 2016-10-14 | 2017-03-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of integral type dry and wet anaerobic digestion process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002292393A (en) * | 2001-03-30 | 2002-10-08 | Sumitomo Heavy Ind Ltd | Apparatus and method for methane fermentation |
| CN105164062A (en) * | 2013-03-22 | 2015-12-16 | 住友重机械工业株式会社 | Anaerobic treatment system and anaerobic treatment method |
| CN205367880U (en) * | 2016-03-04 | 2016-07-06 | 苏州苏沃特环境科技有限公司 | Syllogic marsh gas reactor |
-
2016
- 2016-03-04 CN CN201610124131.XA patent/CN105540837A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002292393A (en) * | 2001-03-30 | 2002-10-08 | Sumitomo Heavy Ind Ltd | Apparatus and method for methane fermentation |
| CN105164062A (en) * | 2013-03-22 | 2015-12-16 | 住友重机械工业株式会社 | Anaerobic treatment system and anaerobic treatment method |
| CN205367880U (en) * | 2016-03-04 | 2016-07-06 | 苏州苏沃特环境科技有限公司 | Syllogic marsh gas reactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497984A (en) * | 2016-10-14 | 2017-03-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of integral type dry and wet anaerobic digestion process |
| CN106497984B (en) * | 2016-10-14 | 2021-08-06 | 上海市政工程设计研究总院（集团）有限公司 | Integrated dry-wet anaerobic digestion method |
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Application publication date: 20160504 |