CN104312905A - Biogas fermentation and microalgae breeding coupled system in cold region - Google Patents

Biogas fermentation and microalgae breeding coupled system in cold region Download PDF

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Publication number
CN104312905A
CN104312905A CN201410544910.6A CN201410544910A CN104312905A CN 104312905 A CN104312905 A CN 104312905A CN 201410544910 A CN201410544910 A CN 201410544910A CN 104312905 A CN104312905 A CN 104312905A
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water
biogas
biogas fermentation
micro
hot
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CN201410544910.6A
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CN104312905B (en
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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
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/58Reaction vessels connected in series or in parallel
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/02Stirrer or mobile mixing elements
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/06Nozzles; Sprayers; Spargers; Diffusers
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/22Heat exchange systems, e.g. heat jackets or outer envelopes in contact with the bioreactor walls
    • 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

Abstract

The invention discloses a biogas fermentation and microalgae breeding coupled system in a cold region, belonging to biomass energy utilization technologies. The system comprises a sunlight plate solar greenhouse, a microalgae breeding pond, a biogas fermentation device and a solid-liquid separation device, a biogas slurry storage device, a liquid pump A, a biogas combustion heat exchange device and a hot water storage device, wherein a microalgae breeding heating coil pipe and a biogas fermentation heating coil pipe are respectively assembled in the microalgae breeding pond and the biogas fermentation device; and all the devices, the microalgae breeding pond and the coil pipes are respectively communicated with one another through pipelines. According to the system, biogas slurry generated after biogas fermentation and carbon dioxide waste gas generated after heat exchange after biogas combustion are introduced into the microalgae breeding pond, the biogas fermentation and microalgae breeding have complementary advantages by utilizing solar energy, the cost of the biogas fermentation and microalgae breeding is reduced, zero emission of pollutants is realized, and the system is novel and reasonable in structure, reliable to use and good in operating effect.

Description

Cold district's biogas fermentation and both culturing microalgae coupled system
Technical field
The invention belongs to biomass resource utilization technology, relate generally to a kind of cold district biogas fermentation and the both culturing microalgae coupled system that are adapted at cold district use.
Background technology
Due to the country that China is the extremely shortage of energy, so the both culturing microalgae of production biofuel and the biogas anaerobic fermentation engineering that can produce biogas can obtain the support energetically of country in recent years, development is swift and violent.But while biogas engineering and both culturing microalgae develop rapidly, still there are some problem demanding prompt solutions separately.Need in culturing pool, supply rich carbonated gas in microalga cultivation process at present, and the nutritive substances such as regular replenishment nitrogen, to ensure the eubolism of micro-algae.And biogas engineering particularly needs the boiler being equipped with burning biogas in north cold area at present, the heat after biogas combustion is utilized to heat for methane-generating pit, to realize the ferment at constant temperature of biogas engineering, and the waste gas after biogas combustion is rich in carbonic acid gas and certain heat, can not utilize it and arbitrarily discharge, not only cause the loss of heat, also add the Greenhouse effect of air.Simultaneously, residuum moisture content after biogas fermentation is comparatively large, and the natural pond liquid obtained after solid-liquid separation is more, and these natural pond liquid being rich in the nutritive substances such as nitrogen often can not get utilizing timely and effectively, not only cause the waste of resource, also great potential safety hazard is caused to the environment of biogas engineering periphery.
Summary of the invention
Object of the present invention is exactly for above-mentioned prior art Problems existing, in conjunction with the actual needs that northern China vast cold district biogas fermentation and both culturing microalgae are produced, the cold district's biogas fermentation of research and design one and both culturing microalgae coupled system, reach the object fully effectively utilizing the sun power of renewable energy source, the cold district's biogas fermentation of realization and both culturing microalgae synchronous production, reduce both culturing microalgae production cost, zero release of pollutant.
The object of the present invention is achieved like this: cold district's biogas fermentation and both culturing microalgae coupled system comprise sunlight board heliogreenhouse, micro-algae culture pond and biogas fermentation device, stirrer configuration is in micro-algae culture pond, biogas fermentation heating coil is configured in biogas fermentation device, airtight installation micro-algae culture pond on described biogas fermentation device upper end, sunlight board heliogreenhouse is fitted on micro-algae culture pond upper end; Equipped both culturing microalgae heating coil in described micro-algae culture pond; Residues transfer lime two ends are connected on biogas fermentation device and micro-algae culture pond, are communicated with, initial equipped equipment for separating liquid from solid, natural pond liquid storage facility and liquid pump A successively on described residues transfer lime, from biogas fermentation device side; The two ends of biogas transfer lime are communicated with the biogas entrance of biogas combustion heat-exchanger rig with the methane outlet of biogas fermentation device respectively, the two ends of being rich in CO 2 waste gas transfer lime are communicated with micro-algae culture pond exhaust gas entrance with the waste gas outlet of biogas combustion heat-exchanger rig respectively, biogas combustion heat-exchanger rig is communicated with hot-water storage device by water circulation pipe, the hot water output lower tube water intake end of equipped penstock B is communicated with hot-water storage device water outlet by liquid pump B, and described hot water output lower tube water side is connected with biogas fermentation heating coil water intake end; The water intake end of the hot water output upper tube of equipped penstock C is communicated with hot-water storage device water outlet by liquid pump B, and described hot water output upper tube water side is connected with both culturing microalgae heating coil water intake end; The two ends of water pipe next time of equipped penstock A are connected with biogas fermentation heating coil water side and hot-water storage device water return outlet respectively, and the water pipe last time two ends of equipped penstock D are connected with both culturing microalgae heating coil water side and hot-water storage device water return outlet respectively.
CO 2 waste gas after the natural pond liquid produced after biogas fermentation and biogas combustion after heat exchange is passed into micro-algae culture pond by the present invention, and micro-algae culture pond is placed in biogas fermentation device top, biogas fermentation device and micro-algae culture pond are placed in below sunlight board heliogreenhouse simultaneously, the mutual supplement with each other's advantages of biogas fermentation device and micro-algae culture pond is realized while utilizing sun power, while reduction biogas fermentation and both culturing microalgae cost, realize the zero release of pollutent, be conducive to the development of cold district biogas fermentation and both culturing microalgae industry, there is novel and reasonable structure, use reliable, operation effectiveness is good, production cost is low, the feature that environmental pollution is little.
Accompanying drawing explanation
Tu1Shi Han district biogas fermentation and both culturing microalgae coupled system overall structure schematic diagram.
In figure, piece number illustrates:
1, sunlight board heliogreenhouse, 2, micro-algae culture pond, 3, both culturing microalgae heating coil, 4, biogas fermentation device, 5, biogas fermentation heating coil, 6, be rich in CO 2 waste gas transfer lime, 7, biogas transfer lime, 8, hot water output lower tube, 9, residues transfer lime, 10, water pipe next time, 11, equipment for separating liquid from solid, 12, penstock A, 13, natural pond liquid storage facility, 14, liquid pump A, 15, penstock B, 16, biogas combustion heat-exchanger rig, 17, hot-water storage device, 18, liquid pump B, 19, last time water pipe, 20, penstock C, 21, penstock D, 22, water circulation pipe, 23, agitator, 24, hot water output upper tube.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention is described in detail.A kind of cold district's biogas fermentation and both culturing microalgae coupled system comprise sunlight board heliogreenhouse 1, micro-algae culture pond 2 and biogas fermentation device 4, agitator 23 is configured in micro-algae culture pond 2, biogas fermentation heating coil 5 is configured in biogas fermentation device 4, airtight installation micro-algae culture pond 2 on described biogas fermentation device 4 upper end, sunlight board heliogreenhouse 1 is fitted on micro-algae culture pond 2 upper end, equipped both culturing microalgae heating coil 3 in described micro-algae culture pond 2, residues transfer lime 9 two ends are connected on biogas fermentation device 4 and micro-algae culture pond 2, be communicated with, initial equipped equipment for separating liquid from solid 11, natural pond liquid storage facility 13 and liquid pump A14 successively on described residues transfer lime 9, from biogas fermentation device 4 side, the two ends of biogas transfer lime 7 are communicated with the biogas entrance of biogas combustion heat-exchanger rig 16 with the methane outlet of biogas fermentation device 4 respectively, the two ends of being rich in CO 2 waste gas transfer lime 6 are communicated with micro-algae culture pond 2 exhaust gas entrance with the waste gas outlet of biogas combustion heat-exchanger rig 16 respectively, biogas combustion heat-exchanger rig 16 is communicated with hot-water storage device 17 by water circulation pipe 22, hot water output lower tube 8 water intake end of equipped penstock B15 is communicated with hot-water storage device 17 water outlet by liquid pump B18, described hot water output lower tube 8 water side is connected with biogas fermentation heating coil 5 water intake end, the water intake end of the hot water output upper tube 24 of equipped penstock C20 is communicated with hot-water storage device 17 water outlet by liquid pump B18, and described hot water output upper tube 24 water side is connected with both culturing microalgae heating coil 3 water intake end, water pipe next time 10 two ends of equipped penstock A12 are connected with biogas fermentation heating coil 5 water side and hot-water storage device 17 water return outlet respectively, and the water pipe 19 last time two ends of equipped penstock D21 are connected with both culturing microalgae heating coil 3 water side and hot-water storage device 17 water return outlet respectively.
In process of production, first biogas fermentation device 4 produces biogas, the biogas part produced exports and is used for selling, a part carries out burning and heat exchange through biogas combustion heat-exchanger rig 16, the heat part produced after burning carries out ferment at constant temperature for maintaining biogas fermentation device 4, another part heat carries out constant temperature cultivation for maintaining micro-algae culture pond 2, after biogas combustion, rich carbonated waste gas passes in micro-algae culture pond 2, while realizing the supply of both culturing microalgae carbonic acid gas, realize making full use of of exhaust gases after combustion heat, waste gas after biogas combustion is passed in micro-algae culture pond 2 after recovery of heat again simultaneously, the waste gas after by biogas combustion can be avoided directly to pass into the micro-algae culture pond 2 easily occurred in micro-algae culture pond 2 to heat up the phenomenon that cannot simultaneously meet with carbonic acid gas supply.Residuum after biogas fermentation is after solid-liquid separation, and the natural pond slag of generation is for the production of solid-state biological organic fertilizer, and the natural pond liquid of the more difficult transport of generation passes in micro-algae culture pond 2, realizes the supply of the nutritive substances such as the nitrogenous source of both culturing microalgae.The sunlight board heliogreenhouse 1 that top is installed is for collecting sun power, and by water body larger for the specific heat capacity of thermal energy storage in micro-algae culture pond 2 of collection, while maintenance micro-algae culture pond 2 temperature, the calorific loss of biogas fermentation device 4 below micro-algae culture pond 2 can also be reduced.This cold district biogas fermentation and both culturing microalgae coupled system, while utilizing sun power, realizing biogas fermentation and both culturing microalgae synchronous production, can also realize the zero release of production process pollutent, and reduce the cost of both culturing microalgae.

Claims (1)

1. a Zhong Han district biogas fermentation and both culturing microalgae coupled system, comprise sunlight board heliogreenhouse (1), micro-algae culture pond (2) and biogas fermentation device (4), agitator (23) is configured in micro-algae culture pond (2), biogas fermentation heating coil (5) is configured in biogas fermentation device (4), it is characterized in that: airtight installation micro-algae culture pond (2) on described biogas fermentation device (4) upper end, sunlight board heliogreenhouse (1) is fitted on micro-algae culture pond (2) upper end, equipped both culturing microalgae heating coil (3) in described micro-algae culture pond (2), residues transfer lime (9) two ends are connected on biogas fermentation device (4) and micro-algae culture pond (2), be communicated with, initial equipped equipment for separating liquid from solid (11), natural pond liquid storage facility (13) and liquid pump A (14) successively on described residues transfer lime (9), from biogas fermentation device (4) side, the two ends of biogas transfer lime (7) are communicated with the biogas entrance of biogas combustion heat-exchanger rig (16) with the methane outlet of biogas fermentation device (4) respectively, the two ends of being rich in CO 2 waste gas transfer lime (6) are communicated with micro-algae culture pond (2) exhaust gas entrance with the waste gas outlet of biogas combustion heat-exchanger rig (16) respectively, biogas combustion heat-exchanger rig (16) is communicated with hot-water storage device (17) by water circulation pipe (22), hot water output lower tube (8) water intake end of equipped penstock B (15) is communicated with hot-water storage device (17) water outlet by liquid pump B (18), described hot water output lower tube (8) water side is connected with biogas fermentation heating coil (5) water intake end, the water intake end of the hot water output upper tube (24) of equipped penstock C (20) is communicated with hot-water storage device (17) water outlet by liquid pump B (18), and described hot water output upper tube (24) water side is connected with both culturing microalgae heating coil (3) water intake end, water pipe next time (10) two ends of equipped penstock A (12) are connected with biogas fermentation heating coil (5) water side and hot-water storage device (17) water return outlet respectively, and water pipe last time (19) two ends of equipped penstock D (21) are connected with both culturing microalgae heating coil (3) water side and hot-water storage device (17) water return outlet respectively.
CN201410544910.6A 2014-09-29 2014-09-29 Cold district biogas fermentation and both culturing microalgae coupled system Active CN104312905B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105039138A (en) * 2015-08-19 2015-11-11 东台市赐百年生物工程有限公司 Microalgae culture system with solar cell panels and culture method thereof
CN106745769A (en) * 2016-12-21 2017-05-31 兰州理工大学 Solar constant temperature culture microalgae domestic sewage treatment system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201634680U (en) * 2010-02-23 2010-11-17 牛志强 Methane tank with heating device
CN101920258A (en) * 2010-07-20 2010-12-22 中国科学院广州能源研究所 Energy utilization system of organic wastes with zero emission of carbon dioxide
US20120021477A1 (en) * 2009-01-20 2012-01-26 Olivier Bernard Method for the Fixation of CO2 and for Treating Organic Waste by Coupling an Anaerobic Digestion System and a Phytoplankton Microorganism Production System

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120021477A1 (en) * 2009-01-20 2012-01-26 Olivier Bernard Method for the Fixation of CO2 and for Treating Organic Waste by Coupling an Anaerobic Digestion System and a Phytoplankton Microorganism Production System
CN201634680U (en) * 2010-02-23 2010-11-17 牛志强 Methane tank with heating device
CN101920258A (en) * 2010-07-20 2010-12-22 中国科学院广州能源研究所 Energy utilization system of organic wastes with zero emission of carbon dioxide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105039138A (en) * 2015-08-19 2015-11-11 东台市赐百年生物工程有限公司 Microalgae culture system with solar cell panels and culture method thereof
CN106745769A (en) * 2016-12-21 2017-05-31 兰州理工大学 Solar constant temperature culture microalgae domestic sewage treatment system
CN106745769B (en) * 2016-12-21 2020-06-02 兰州理工大学 Solar constant-temperature microalgae cultivation domestic sewage treatment system

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