CN101407827B - Method for improving gas production rate of marsh gas fermentation raw material - Google Patents

Method for improving gas production rate of marsh gas fermentation raw material Download PDF

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Publication number
CN101407827B
CN101407827B CN200810219160XA CN200810219160A CN101407827B CN 101407827 B CN101407827 B CN 101407827B CN 200810219160X A CN200810219160X A CN 200810219160XA CN 200810219160 A CN200810219160 A CN 200810219160A CN 101407827 B CN101407827 B CN 101407827B
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marsh gas
inoculum
plant
fermentation
sourced
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CN200810219160XA
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CN101407827A (en
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庄明儒
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Guangdong Fuerkang Chemical Technology Co., Ltd.
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庄明儒
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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
    • C12M45/00Means for pre-treatment of biological substances
    • C12M45/03Means for pre-treatment of biological substances by control of the humidity or content of liquids; Drying
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023Methane
    • 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 belongs to the technical fields of new agriculture energy sources and environment protection, in particular to a method for using a plant source inoculum to improve the gas yield rate of a marsh gas fermenting material. The method includes preparing the plant source inoculum; the materials of the plant source inoculum include the dry basis of a water hyacinth, EM bacteria and a biogas liquid; wherein, the dry basis of the water hyacinth is obtained from cutting and drying the water hyacinth salvaged from rivers; the biogas liquid in a fermentation vat is taken and then the temperature is heated to be between 23 DEG C and 25 DEG C; then the biogas liquid is poured and stirred uniformly and the dry basis of the water hyacinth is putted in; then the mixture is dipped for 24 hours under the environment of the temperature of between 23 DEG C and 25 DEG C for obtaining the plant source inoculum; then the plant source inoculum and the fermenting material are added into the fermentation vat together; and the temperature of the marsh gas fermentation vat is larger than or equal to 23 DEG C. The method can lead the unit gas yield rate of the marsh gas fermenting material to beimproved by 3 to 5 times, not only improves the utilization rates of the marsh gas and a marsh gas vat, but also improves the economic benefit of the marsh gas engineering and is beneficial to the development of the marsh gas engineering construction.

Description

A kind of method that improves gas production rate of marsh gas fermentation raw material
Technical field:
The invention belongs to agriculture new forms of energy, environmental technology field, especially a kind of method that improves gas production rate of marsh gas fermentation raw material with the plant-sourced inoculum.
Background technology:
Rural methane facilities development is an important component part of national energy development strategy, and biogas is one of four big emphasis renewable energy sources of greatly developing at present of China.Accelerate development the rural area clean energy, continuing increases the rural methane facilities development input, supports place with good conditionsi to carry out the big-and-middle-sized biogas construction of plant.Accelerate to implement village clean project, advance the comprehensive regulation and the trans-utilization of human and animal excreta, agricultural crop straw, domestic refuse and sewage.
Because river pollution aggravation in recent years, body eutrophication have surpassed natural pin and have received the limit, lake big area blue-green algae and the southeastern coast red tide incident that takes place frequently has appearred, and Herba Eichhorniae overflows.The fecundity of Herba Eichhorniae is extremely strong, based on vegetative propagation, and the expansion of Herba Eichhorniae rapid spread, from the angle of science, body eutrophication does not add utilization again to Herba Eichhorniae and causes stubble secondary pollution accumulation and rivers to silt up.
The marsh gas fermentation pool in existing rural area is built in ground usually, fermentation raw material such as stalk, domestic waste and human and animal excreta etc., and wherein human and animal excreta is a fermentation raw material, also is starter.
Because existing marsh gas fermentation pool is built in ground usually, thereby the fermentation gas rate is subjected to the variation of temperature and changes, in brief, summer, methane-generating pit substantially can fermentation gas, and winter, the north methane pond at all can not fermentation gas, even methane-generating pit have by bursting by freezing, although in summer, because existing marsh gas fermentation pool relies on the human and animal excreta that drops into to ferment, fermentation gas rate and gas production rate are on the low side, have a strong impact on the economic benefit of biogas engineering.
Summary of the invention:
The objective of the invention is to provides a kind of method that can improve gas production rate of marsh gas fermentation raw material at existing methane tank gas production rate and gas production rate this situation on the low side.
The present invention, comprise: preparation plant-sourced inoculum: the raw material of plant-sourced inoculum comprises Herba Eichhorniae butt, EM bacterium and natural pond liquid, its weight proportion is 15-20: 0.5-1.2: 78.5-84.2, wherein, the Herba Eichhorniae butt from the Herba Eichhorniae of salvaging rivers through chopping, dry gained, its water content 5-10%; Getting fermentation pond liquid heats to 23 ℃-25 ℃, pouring the EM bacterium into mixes thoroughly, drop into the Herba Eichhorniae butt, in 23 ℃-25 ℃ environment, soaked 24 hours, get the plant-sourced inoculum, then plant-sourced inoculum and fermentation raw material are dropped in the marsh gas fermentation pool in the lump, input amount is: fermentation raw material: the plant-sourced inoculum is 100: 0.5-2; The temperature of marsh gas fermentation pool is more than or equal to 23 ℃, but can not surpass 55 ℃, otherwise bacterial classification is killed, and fermentation stops.
The present invention, the temperature of described marsh gas fermentation pool will keep more than or equal to 23 ℃, if methane-generating pit is built in ground routinely, can reach this temperature summer, and the early spring or late autumn weather, one of method is an external heat source, to guarantee to reach this temperature; Two of method is that marsh gas fermentation pool is built in the dark underground environment of 6-10 rice, and is the domes that Steel Concrete is built.At the dark underground construction marsh gas fermentation pool of 6-10 rice, directly utilize underground heat to provide heat energy for marsh gas fermentation pool, it is possible that marsh gas fermentation pool is kept more than or equal to 23 ℃.In addition, adopt Steel Concrete that marsh gas fermentation pool is built up domes, can make marsh gas fermentation pool firmer, more durable.At the dark underground construction marsh gas fermentation pool of 6-10 rice,, calculate for the economic benefit (being input-output ratio) of biogas engineering though laid down cost is higher.
The present invention, utilize the Herba Eichhorniae butt, add the EM bacterium, be made into the plant-sourced inoculum with natural pond liquid, the one, Herba Eichhorniae contains very abundant cellulosic, protein, amino acid, carotene and trace element, the breeding fast growth, and the 2nd, utilize the zymotic efficiency of the prolific microbial bacteria of EM bacterium, thereby quickened organic decomposition, made the biogas fermentation raw material improve the factor of created gase 3-5 of unit doubly.Like this, both improve the utilization ratio of biogas and methane-generating pit, also improved the economic benefit of biogas engineering, helped developing the biogas construction.
The present invention both had been adapted to medium-and-large-sized feeding live pig plant and had used, and also was adapted to handle densely populated public lavatory, town and country discharging human faecal mass sewage.
Description of drawings:
Fig. 1 is the structure principle chart of embodiment marsh gas fermentation pool.
Among the figure, 1, charging pond 2, inoculating groove 3, feed-pipe 4, fermentation vat 5, discharge nozzle 6, material-output tank 7, finishing plant.
Embodiment:
A kind of method that improves gas production rate of marsh gas fermentation raw material, comprise: preparation plant-sourced inoculum: the raw material weight proportioning of plant-sourced inoculum is Herba Eichhorniae butt 18kg, EM bacterium 1.0kg, natural pond liquid 81kg, the Herba Eichhorniae butt from the Herba Eichhorniae of salvaging rivers through chopping, dry gained, its water content 5-10%; The EM bacterium is adopted sky, Henan justice bio tech ltd product supplied; Measuring fermentation vat natural pond liquid by prescription heats to 23 ℃-25 ℃, pouring the EM bacterium into mixes thoroughly, drop into the Herba Eichhorniae butt, in 23 ℃-25 ℃ inoculation pond 2, soaked 24 hours, get the plant-sourced inoculum, then, plant-sourced inoculum and fermentation raw material are put in the marsh gas fermentation pool 4 by the pond 1 that feeds intake in the lump, input amount is: every 100kg fermentation raw material is joined plant-sourced inoculum 1kg; Marsh gas fermentation pool 4 is chosen three grades of domes that placed in-line Steel Concrete is built that are built in the dark underground environment of 6-10 rice.Because marsh gas fermentation pool is built in dark underground of 6-10 rice, utilizes underground heat to provide heat energy for marsh gas fermentation pool, make marsh gas fermentation pool keep leavening temperature more than 25 ℃ throughout the year.
Present embodiment, every cubic metre methane tank gas production rate can reach 0.68m 3/ day (m 3/ d), the chemical reaction velocity of plant-sourced can increase 2-3 doubly.
Present embodiment, marsh gas fermentation pool is built the dark underground environment of 6-10 rice in, adopt Steel Concrete to build three grades of conjuncted fermentation vats of arch, symmetrical two ends in conjuncted fermentation vat, find out the drop point, the above input and output material plastic conduit of two diameter 30cm is installed,, is established charging pond 1, inoculating groove 2, material-output tank 6 and finishing plant 7 to apart from about 1-2 rice, ground.
Present embodiment, plant-sourced inoculation fermentation technology adopts underground device, makes feed-pipe 3 with the plastics tubing that diameter 30cm is above, guarantees inoculation material and the unimpeded fermentation vat 4 that enters of fermentation raw material; Keep the leavening temperature more than 25 ℃ throughout the year, principle, safe fortune, the aerogenesis of utilization nature drop, equivalent transposition, do not explode, do not crust, automatic sludge discharge, layout flexibly, save the area.
By discharge nozzle 5 sucking-offs, for the usefulness that finishing plant is made fertilizer, the natural pond liquid of failing to utilize enters the biological treatment tank purifying treatment with slush pump for settled natural pond slag and natural pond liquid in the present embodiment, tail level fermentation vat.

Claims (3)

1. method that improves gas production rate of marsh gas fermentation raw material, it is characterized in that comprising: preparation plant-sourced inoculum: the raw material of plant-sourced inoculum is made up of Herba Eichhorniae butt, EM bacterium and natural pond liquid, its weight proportion is 15-20: 0.5-1.2: 78.5-84.2, wherein, the Herba Eichhorniae butt from the Herba Eichhorniae of salvaging rivers through chopping, dry gained, its water content 5-10%; Getting fermentation pond liquid heats to 23 ℃-25 ℃, pouring the EM bacterium into mixes thoroughly, drop into the Herba Eichhorniae butt, in 23 ℃-25 ℃ environment, soaked 24 hours, get the plant-sourced inoculum, then plant-sourced inoculum and fermentation raw material are dropped in the marsh gas fermentation pool in the lump, input amount is: fermentation raw material: the plant-sourced inoculum is 100: 0.5-2; The temperature of marsh gas fermentation pool is more than or equal to 23 ℃, but can not be greater than 55 ℃.
2. the method for raising gas production rate of marsh gas fermentation raw material according to claim 1 is characterized in that: marsh gas fermentation pool is built in the dark underground environment of 6-10 rice, is the domes of Steel Concrete construction.
3. the method for raising gas production rate of marsh gas fermentation raw material according to claim 2 is characterized in that: described marsh gas fermentation pool is three grades of domes that placed in-line Steel Concrete is built.
CN200810219160XA 2008-11-14 2008-11-14 Method for improving gas production rate of marsh gas fermentation raw material Expired - Fee Related CN101407827B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103266053A (en) * 2013-05-31 2013-08-28 绵阳荣川环保科技有限公司 Plug flow type anaerobic biogas reactor

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CN102477813A (en) * 2010-11-23 2012-05-30 周诗忠 Environmental protection and agriculture combination device with ecological circulation
CN102173508B (en) * 2011-01-26 2012-09-05 广西必佳微生物工程有限责任公司 Method for producing biogas for vehicles by utilizing high concentration organic wastewater and waste residues
CN102318728B (en) * 2011-06-15 2013-04-17 宜章县梅田镇石子岭综合养殖场 Feed adopting bean dregs as raw material and being fermented by geotherm and preparation method thereof
CN103695524A (en) * 2013-12-20 2014-04-02 广西柳州浚业科技有限公司 Biogas residue fermentation raw material
CN103695523A (en) * 2013-12-20 2014-04-02 广西柳州浚业科技有限公司 Biogas residue fermentation raw material
CN104399735B (en) * 2014-11-04 2017-07-07 甘肃新德燃气有限公司 A kind of preprocess method of stalk biomass
CN109265207A (en) * 2018-10-22 2019-01-25 汪添法 A method of it is fermented using cellar underground heat to organic fertilizer

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CN1539799A (en) * 2003-04-23 2004-10-27 上海孙桥农业科技股份有限公司 Technique for producing organic matrix from hyacinth, stem and leaf of crop
CN1740328A (en) * 2005-09-13 2006-03-01 广东琪田农药化工有限公司 Method and apparatus for comprehensively utilizing water hyacinth plant residue to produce methane
CN101275150A (en) * 2008-05-13 2008-10-01 江苏省农业科学院 Fermentation method for changing methane into resource by using water hyacinth and application of product produced thereby

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1539799A (en) * 2003-04-23 2004-10-27 上海孙桥农业科技股份有限公司 Technique for producing organic matrix from hyacinth, stem and leaf of crop
CN1740328A (en) * 2005-09-13 2006-03-01 广东琪田农药化工有限公司 Method and apparatus for comprehensively utilizing water hyacinth plant residue to produce methane
CN101275150A (en) * 2008-05-13 2008-10-01 江苏省农业科学院 Fermentation method for changing methane into resource by using water hyacinth and application of product produced thereby

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103266053A (en) * 2013-05-31 2013-08-28 绵阳荣川环保科技有限公司 Plug flow type anaerobic biogas reactor
CN103266053B (en) * 2013-05-31 2015-05-20 绵阳荣川环保科技有限公司 Plug flow type anaerobic biogas reactor

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