CN104261925A - System for coupling aerobic composting and dry type anaerobic straw fermentation - Google Patents

System for coupling aerobic composting and dry type anaerobic straw fermentation Download PDF

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Publication number
CN104261925A
CN104261925A CN201410545333.2A CN201410545333A CN104261925A CN 104261925 A CN104261925 A CN 104261925A CN 201410545333 A CN201410545333 A CN 201410545333A CN 104261925 A CN104261925 A CN 104261925A
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China
Prior art keywords
type anaerobic
anaerobic fermentation
waste gas
stalk dry
dry type
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CN201410545333.2A
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Chinese (zh)
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CN104261925B (en
Inventor
王丽丽
王忠江
隋超
蔡康妮
刘欣欣
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Northeast Agricultural University
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Northeast Agricultural University
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90Apparatus therefor
    • C05F17/964Constructional parts, e.g. floors, covers or doors
    • C05F17/971Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
    • C05F17/979Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being gaseous
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90Apparatus therefor
    • C05F17/957Apparatus therefor using two or more serially arranged devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Abstract

The invention provides a system for coupling aerobic composting and dry type anaerobic straw fermentation, and belongs to a biomass fermentation technology. The system comprises a biological carbon waste gas purifier, a dry type anaerobic straw fermenter and an aerobic composting device, wherein the aerobic composting device is communicated with the dry type anaerobic straw fermenter through a first waste gas conveying pipe equipped with a first gas valve; two ends of a biogas residue conveying pipe equipped with a biogas residue discharge valve are connected with a slag discharge port of the dry type anaerobic straw fermenter and a slag inlet of the aerobic composting device respectively; the biogas residue conveying assembly is assembled on the biogas residue conveying pipe; and the dry type anaerobic straw fermenter and the biological carbon waste gas purifier are communicated through a second waste gas conveying pipe equipped with a second gas valve. The system is simple in overall configuration, the technological process is novel and reasonable, the straw fermentation speed is high, the straw degradation rate is high, the production cost is low, and the environment pollution is low.

Description

Aerobic compost and stalk dry-type anaerobic fermentation coupled system
Technical field
The invention belongs to biomass ferment technology, relate generally to a kind of aerobic compost and stalk dry-type anaerobic fermentation coupled system.
Background technology
Along with people are to the raising of food safety attention rate, the demand of biological organic fertilizer is increased, current biological organic fertilizer is mainly produced by the mode of aerobic compost, the waste gas of discharging in aerobic composting process contains a large amount of ammonias, heat and water vapour, directly be discharged to the waste not only causing resource in air, and serious pollution is caused to environment.China is a large agricultural country simultaneously, the agricultural crop straw that annual generation is a large amount of, and these stalk major parts are all dropped or burn, not only cause the huge waste of resource but also severe contamination is caused to environment, if using the raw material of these stalks as dry-type anaerobic fermentation, the deficiency of China's energy can also be made up while realizing stalk resource, but, because stalk is mainly by xylogen, Mierocrystalline cellulose and hemicellulose are formed, particularly xylogen is difficult to degraded, so stalk carry out anaerobically fermenting last as all need to carry out pre-treatment, destroy or remove the xylogen on surface, and then accelerate anaerobic fermentation speed and improve straw degradative rate, at present in numerous pretreatment processs, ammonification pre-treatment is used widely with its feature such as simply efficient.The by product biological carbon surface simultaneously produced after gasifying stalk is comparatively large, has stronger adsorptivity.If aerobic compost unit and stalk dry-type anaerobic fermentation unit are coupled, and utilize the feature of biological carbon high absorbability, not only can realize the high-efficiency resource recycling of waste gas after aerobic compost, but also stalk dry-type anaerobic fermentation speed can be accelerated and improve straw degradative rate, realize the mutual supplement with each other's advantages of aerobic compost and stalk dry-type anaerobic fermentation, while reducing aerobic compost and stalk dry-type anaerobic fermentation cost, realize the zero release of pollutent, and then accelerate the development of biological organic fertilizer industry and Biomass Energy Industry.
Summary of the invention
Object of the present invention is exactly for above-mentioned prior art Problems existing, in conjunction with aerobic compost and stalk dry-type anaerobic fermentation production operation actual needs, design provides a kind of aerobic compost and stalk dry-type anaerobic fermentation coupled system, the waste gas produced by utilizing aerobic composting fermentation mends nitrogen and temperature raising in stalk dry-type anaerobic fermentation device, reaches and improves straw degradative rate and fermenting speed, reduction production cost, the object that makes full use of stalk effective ingredient, alleviate environmental pollution.
The object of the present invention is achieved like this: aerobic compost and stalk dry-type anaerobic fermentation coupled system comprise biological carbon catalytic converter, stalk dry-type anaerobic fermentation device and aerobic Composter; Described biological carbon catalytic converter is connected and installed cleaning exhaust gas delivery pipe and the waste biomass carbon discharge of materials pipe with waste gas biological carbon discharge of materials valve; Air pump is communicated with aerobic compost device by inlet pipe, the equipped decomposed manure delivery pipe with decomposed manure vent valves on described aerobic compost device; Described stalk dry-type anaerobic fermentation device is connected with the biogas output tube with the 3rd air valve; Aerobic compost device is communicated with stalk dry-type anaerobic fermentation device by the first waste gas pipeline of equipped first air valve, the natural pond slag of equipped natural pond slag vent valves transports pipe two ends and is connected with the slag-drip opening of stalk dry-type anaerobic fermentation device and the cinder notch that enters of aerobic Composter respectively, transports equipped natural pond slag on pipe transport assembly at described natural pond slag; Stalk dry-type anaerobic fermentation device is communicated with biological carbon catalytic converter by the second waste gas pipeline of equipped second air valve.
The present invention is by aerobic compost device, stalk dry-type anaerobic fermentation device and biological carbon catalytic converter are combined into one, what aerobic compost device was produced is rich in ammonia, the waste gas of heat and water vapour passes in stalk dry-type anaerobic fermentation device by pipeline, ammonia in these waste gas and water vapor adsorption are on the stalk surface being positioned at stalk dry-type anaerobic fermentation device, heat in waste gas makes stalk temperature raise, and then the ammonification pre-treatment realized carrying out stalk before dry-type anaerobic fermentation, accelerate stalk dry-type anaerobic fermentation speed and improve straw degradative rate, reduce the ammonia level in waste gas simultaneously, that discharges in stalk dry-type anaerobic fermentation device afterwards enters in the biological carbon catalytic converter that is made up of biological carbon containing the waste gas of a small amount of ammonia, ammonia in further removal waste gas, realize resource utilization and tastelessization of aerobic compost combustion gas, the residuum natural pond slag that in stalk dry-type anaerobic fermentation device, stalk fermentation after pretreatment produces is transported to the raw material as aerobic compost in aerobic compost device, and lose adsorption in catalytic converter and be rich in the fertilizer mixture manufacturing biological organic fertilizer become thoroughly decomposed that the biological carbon of nitrogen and aerobic compost device export, there is technological process reasonable, overall arrangement is simple, stalk fermentation speed is fast, straw degradative rate is high, reduce production cost, the feature that environmental pollution is light.
Accompanying drawing explanation
Fig. 1 is aerobic compost and stalk dry-type anaerobic fermentation coupled system overall structure schematic diagram.
In figure, piece number illustrates:
1, biological carbon catalytic converter, 2, second waste gas pipeline, 3, second air valve, 4, 3rd air valve, 5, biogas output tube, 6, first waste gas pipeline, 7, natural pond slag vent valves, 8, natural pond slag transports assembly, 9, stalk dry-type anaerobic fermentation device, 10, natural pond slag transports pipe, 11, first air valve, 12, decomposed manure vent valves, 13, decomposed manure delivery pipe, 14, aerobic compost device, 15, inlet pipe, 16, air pump, 17, waste biomass carbon discharge of materials valve, 18, waste gas biological carbon delivery pipe, 19, cleaning exhaust gas delivery pipe.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention is described in detail.A kind of aerobic compost and stalk dry-type anaerobic fermentation coupled system comprise biological carbon catalytic converter 1, stalk dry-type anaerobic fermentation device 9 and aerobic Composter 14; Described biological carbon catalytic converter 1 is connected and installed cleaning exhaust gas delivery pipe 19 and the waste biomass carbon discharge of materials pipe 18 with waste gas biological carbon discharge of materials valve 17; Air pump 16 is communicated with aerobic compost device 14 by inlet pipe 15, the equipped decomposed manure delivery pipe 13 with decomposed manure vent valves 12 on described aerobic compost device 14; Described stalk dry-type anaerobic fermentation device 9 is connected with the biogas output tube 5 with the 3rd air valve 4; Aerobic compost device 14 is communicated with stalk dry-type anaerobic fermentation device 9 by the first waste gas pipeline 6 of equipped first air valve 11, the natural pond slag of equipped natural pond slag vent valves 7 transports pipe 10 two ends and is connected with the slag-drip opening of stalk dry-type anaerobic fermentation device 9 and the cinder notch that enters of aerobic Composter 14 respectively, transports equipped natural pond slag on pipe 10 transport assembly 8 at described natural pond slag; Stalk dry-type anaerobic fermentation device 9 is communicated with biological carbon catalytic converter 1 by the second waste gas pipeline 2 of equipped second air valve 3.

Claims (1)

1. aerobic compost and a stalk dry-type anaerobic fermentation coupled system, comprises biological carbon catalytic converter (1), stalk dry-type anaerobic fermentation device (9) and aerobic Composter (14); Described biological carbon catalytic converter (1) is connected and installed cleaning exhaust gas delivery pipe (19) and waste biomass carbon discharge of materials pipe (18) with waste gas biological carbon discharge of materials valve (17); Air pump (16) is communicated with aerobic compost device (14) by inlet pipe (15), at the upper equipped decomposed manure delivery pipe (13) with decomposed manure vent valves (12) of described aerobic compost device (14); Described stalk dry-type anaerobic fermentation device (9) is connected with the biogas output tube (5) with the 3rd air valve (4); It is characterized in that: aerobic compost device (14) is communicated with stalk dry-type anaerobic fermentation device (9) by first waste gas pipeline (6) of equipped first air valve (11), the natural pond slag in equipped natural pond slag vent valves (7) transports pipe (10) two ends and is connected with the slag-drip opening of stalk dry-type anaerobic fermentation device (9) and the cinder notch that enters of aerobic Composter (14) respectively, transports pipe (10) upper equipped natural pond slag transport assembly (8) at described natural pond slag; Stalk dry-type anaerobic fermentation device (9) is communicated with biological carbon catalytic converter (1) by second waste gas pipeline (2) of equipped second air valve (3).
CN201410545333.2A 2014-09-29 2014-09-29 Aerobic compost and stalk dry-type anaerobic fermentation coupled system Active CN104261925B (en)

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Application Number Priority Date Filing Date Title
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CN104261925B CN104261925B (en) 2017-03-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105175045A (en) * 2015-09-02 2015-12-23 东北农业大学 Microalgae culture and wood fiber waste fermentation coupling system
CN108017417A (en) * 2017-11-07 2018-05-11 中钢集团天澄环保科技股份有限公司 A kind of animal faeces wastes resource utilization system
CN110668852A (en) * 2019-11-19 2020-01-10 重庆大学 Method for preparing organic fertilizer by anaerobic fermentation of biogas residues by utilizing kitchen waste
CN112279247A (en) * 2020-09-23 2021-01-29 山东大学 Method and device for treating waste gas and repairing soil by comprehensively utilizing agricultural wastes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288719A1 (en) * 1974-08-02 1976-05-21 Isman Marcel Treatment of solid and liq excrement from piggeries - by aerobic followed by anaerobic fermentation for prodn of combustible gases
CN101637778A (en) * 2009-08-25 2010-02-03 云南昆船设计研究院 Comprehensive processing technology of organic wastes
CN102952827A (en) * 2011-08-17 2013-03-06 天津双象航宇科技发展有限公司 Method for dry anaerobic high temperature production of biogas
CN103205465A (en) * 2013-04-02 2013-07-17 盐城市新洋农业试验站 Integrative anaerobic and aerobic fermentation method of straws
CN103436435A (en) * 2013-08-30 2013-12-11 河南农业大学 Crop straw co-fermentation device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288719A1 (en) * 1974-08-02 1976-05-21 Isman Marcel Treatment of solid and liq excrement from piggeries - by aerobic followed by anaerobic fermentation for prodn of combustible gases
CN101637778A (en) * 2009-08-25 2010-02-03 云南昆船设计研究院 Comprehensive processing technology of organic wastes
CN102952827A (en) * 2011-08-17 2013-03-06 天津双象航宇科技发展有限公司 Method for dry anaerobic high temperature production of biogas
CN103205465A (en) * 2013-04-02 2013-07-17 盐城市新洋农业试验站 Integrative anaerobic and aerobic fermentation method of straws
CN103436435A (en) * 2013-08-30 2013-12-11 河南农业大学 Crop straw co-fermentation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105175045A (en) * 2015-09-02 2015-12-23 东北农业大学 Microalgae culture and wood fiber waste fermentation coupling system
CN108017417A (en) * 2017-11-07 2018-05-11 中钢集团天澄环保科技股份有限公司 A kind of animal faeces wastes resource utilization system
CN110668852A (en) * 2019-11-19 2020-01-10 重庆大学 Method for preparing organic fertilizer by anaerobic fermentation of biogas residues by utilizing kitchen waste
CN112279247A (en) * 2020-09-23 2021-01-29 山东大学 Method and device for treating waste gas and repairing soil by comprehensively utilizing agricultural wastes

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