CN103255179A - Biogas fermentation accelerant and preparation method thereof - Google Patents
Biogas fermentation accelerant and preparation method thereof Download PDFInfo
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- CN103255179A CN103255179A CN2013101633562A CN201310163356A CN103255179A CN 103255179 A CN103255179 A CN 103255179A CN 2013101633562 A CN2013101633562 A CN 2013101633562A CN 201310163356 A CN201310163356 A CN 201310163356A CN 103255179 A CN103255179 A CN 103255179A
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- promotor
- fermentation
- biogas fermentation
- biogas
- accelerant
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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
Abstract
The invention discloses a preparation method of a biogas fermentation accelerant. The fermentation accelerant comprises trace metal elements such as Fe, Co, Ni and Zn. The preparation method comprise the following steps of preparing a thick salt solution in a chloride form; adding quantified thick salt solution into a fermenting methane pool every day, then stirring for well mixing the metal elements in fermentation liquor. The accelerant has good effect for biogas fermentation taking cow dung, pig manure and sheep manure as raw materials, and has good immediate effect on methanogens in biogas fermentation; if the accelerant is added in biogas fermentation, the methane yield can be improved and the methane content of the methane can be improved, the removal rate of COD (chemical oxygen demand), TS (thymidylate synthase) and VS can be obviously improved, and the accelerant has good prospect for promotion and application of the biogas fermentation.
Description
Technical field
The present invention relates to field of agricultural production technologies, be specifically related to a kind of biogas fermentation promotor and preparation method thereof.This promotor can be improved the start time in the marsh gas fermentation processes effectively, accelerates biogas and produces, and improves gas production rate, and safety, environmental protection.Good ecological benefits and social benefit are arranged.
Background technology
Biogas is a kind of high-grade energy of clean and effective, and main component is CH
4, the utilization of biogas not only can solve peasant's domestic energy problem, alleviates the nervous situation of energy, can also utilize waste, reduces environmental pollution., along with carrying forward vigorously of new countryside construction, and the developing rapidly of aquaculture, unprecedented gratifying situation appears in the biogas career development, and all size biogas facility has all had the application of bigger improvement, particularly sun power, allows produce biogas throughout the year and become possibility.But the raw material difference owing to various places weather, crop material, feces of livestock and poultry etc., it is widely different to prepare burden, add the difference on user's operative technique, the biogas instability appears producing, three season of spring and summer autumn, aerogenesis was unbalanced, the north of china in winter severe cold season is phenomenon such as aerogenesis not, has restricted the development of biogas to a certain extent.By the agent of artificial interpolation methanogen, to improve and stable methane generation, one of important measures of new construction of marsh gas tank and large-sized biogas facility had been become already.
But in the applying of biogas reality, exist a lot of problems, such as: fermentation starting is slow, and methane content is low, and term, efficient was low even can not aerogenesis etc., and these problems are all restricting popularizing of biogas engineering.
Summary of the invention
The object of the present invention is to provide a kind ofly at above-mentioned deficiency of the prior art, a kind of promotor that biogas fermentation is had excellent promoter action, environmental protection is provided.
The technical solution used in the present invention is: fermentation accelerant consists of Fe, Co, Ni, micro-metalss such as Zn are mixed with dense saline solution with muriatic form, add the dense saline solution of fixed amount every day in the marsh gas fermentation pool, stir then, metallic element is merged in fermented liquid preferably.
The consumption of described micro-metals is that the consumption of iron, cobalt, nickel, zinc etc. is respectively 0.1,0.15,0.3,0.35mg/L/d.
Described promotor is to form with the form of the dense saline solution of metal chloride.
Performance test
Embodiment 1: biogas fermentation promotor is to the influence of fermentation starting time and gas production rate
The fermentation of this experiment is chosen cow dung and carry out fermentation operation 60 days as substrate in the 1L fermentor tank.Respectively the biogas fermentation that adds the fermentation of iron, cobalt, nickel, zinc metallic element separately and add this promotor biogas fermentation and do not add any material is compared in the marsh gas fermentation processes, contrast the start time of the biogas fermentation of each group, thereby prove that the biogas additive has certain promoter action to the startup of biogas fermentation.
Use:
Experimental group 1: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, iron(ic) chloride is made into dense saline solution, with syringe every day fixing in the reactor 0.1mg/L/d, the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Experimental group 2: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, cobalt chloride is made into dense saline solution, with syringe every day fixing in the reactor 0.15mg/L/d, the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Experimental group 3: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, nickelous chloride is made into dense saline solution, with syringe every day fixing in the reactor 0.3mg/L/d, the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Experimental group 4: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, zinc chloride is made into dense saline solution, with syringe every day fixing in the reactor 0.35mg/L/d, the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Experimental group 5: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, fermentation accelerant of the present invention is made into dense saline solution to mix, with syringe every day fixing in the reactor 0.1mg/L/d, the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Control group: biogas fermentation is chosen cow dung and is carried out in the 1L fermentor tank as substrate, does not add any foreign aid's material except inoculum, and the collection of gas adopts draining water gathering of gas law to carry out, and is designated as the start time of reaction the moment that has gas to generate in the reaction.
Survey the fermentation starting time of each experimental group respectively.The result as shown in Table 1, add each micro-start time separately a little more than adding this promotor, but the start time than the blank group of not adding foreign aid's additive is short, illustrates that this promotor of interpolation has good facilitation effect to the startup of biogas fermentation.
The different additives of table 1 are to the influence of biogas fermentation start time and biogas output
Embodiment 2: fermentation is chosen cow dung, pig manure, sheep excrement respectively and is carried out in the 1L fermentor tank as substrate, biogas fermentation carries out comparing with the biogas fermentation that does not add any material adding this promotor biogas fermentation respectively in the process, the biogas fermentation time is 60 days, contrast the total gas production of the biogas fermentation of each group, the clearance of methane content and COD in the biogas, thus illustrate that this biogas fermentation promotor all has good promoter action to every index of biogas fermentation.
Comparative group 1: fermentation is chosen the cow dung substrate and is carried out in the 1L fermentor tank, and biogas fermentation carries out in the process every day and add this promotor biogas fermentation in fermentor tank, and the collection of gas adopts draining water gathering of gas law to carry out, and the clearance of COD calculates according to the value of COD before and after the reaction
Comparative group 2: fermentation is chosen the pig manure substrate and is carried out in the 1L fermentor tank, and biogas fermentation carries out in the process every day and add this promotor biogas fermentation in fermentor tank, and the collection of gas adopts draining water gathering of gas law to carry out, and the clearance of COD calculates according to the value of COD before and after the reaction
Comparative group 3: fermentation is chosen sheep excrement substrate and is carried out in the 1L fermentor tank, and biogas fermentation carries out in the process every day and add this promotor biogas fermentation in fermentor tank, and the collection of gas adopts draining water gathering of gas law to carry out, and the clearance of COD calculates according to the value of COD before and after the reaction
Blank group 1,2,3: it is that substrate carries out in the 1L fermentor tank that cow dung, pig manure, sheep excrement are chosen in fermentation, and biogas fermentation carries out in the process every day and add this promotor biogas fermentation in fermentor tank, the collection of gas adopts draining water gathering of gas law to carry out, and the clearance of COD calculates according to the value of COD before and after the reaction
This promotor of table 2 is to the influence of the every index of different substrates biogas fermentation
Table 2 is to carry out in the marsh gas fermentation processes with different substrates, adding this promotor compares with the fermentation of not adding any foreign aid's material, contrasted biogas total gas production in the marsh gas fermentation processes, methane content and COD clearance respectively, illustrated that this promotor has good promoter action to biogas fermentation in different substrate marsh gas fermentation processes.
Claims (7)
1. a biogas fermentation promotor is characterized in that, described promotor is multiple micro-metals, and forming is respectively iron, cobalt, nickel, zinc etc.
2. according to the described a kind of biogas fermentation promotor of claim 1, it is characterized in that: the condition of described biogas fermentation is to carry out under room temperature (15～30 ℃) condition, and the interpolation frequency of trace element is once a day.
3. a kind of biogas fermentation promotor according to claim 1, it is characterized in that: described promotor can have good instant effect to the methanogen in the marsh gas fermentation processes.
4. require described a kind of biogas fermentation promotor according to right 3, it is characterized in that: the raw material of described fermentation accelerant consists of several trace elements: the consumption of iron, cobalt, nickel, zinc etc. is respectively 0.1,0.15,0.3,0.35mg/L/d.
One kind prepare require as right 1 as described in a kind of biogas fermentation promotor and preparation method thereof, it is characterized in that, add in the fermenting process this promotor can: to the activation of methanogen, adding promotor has increased by 10～40% than the system's gas production rate that does not add, the methane content of biogas has improved 3.5～7.4%, COD clearance and has improved 7～15.6%
6. according to described a kind of biogas fermentation promotor of claim 5 and preparation method thereof, it is characterized in that: described promotor is to being that the fermentation of raw material all has good effect with cow dung, pig manure and sheep excrement.
7. according to described a kind of biogas fermentation promotor of claim 4 and preparation method thereof, it is characterized in that: described promotor is to form with the form of metal-salt strong solution.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397053A (en) * | 2013-08-20 | 2013-11-20 | 湖南省土壤肥料研究所 | Activator for methanogen and usage method thereof |
| CN103642846A (en) * | 2013-12-24 | 2014-03-19 | 齐鲁工业大学 | Accelerant for increasing methanogenesis ratio of methane bacteria |
| CN104593432A (en) * | 2015-01-11 | 2015-05-06 | 北京化工大学 | Method for improving methane yield of corn straw anaerobic digestion by combined pretreatment of alkali and salt |
| CN104609547A (en) * | 2015-01-27 | 2015-05-13 | 唐山中科格润环境技术有限公司 | Medicament for improving anaerobe activity |
| CN105543285A (en) * | 2016-02-02 | 2016-05-04 | 青岛天人环境股份有限公司 | Method for producing biogas by enhancing kitchen waste anaerobic fermentation |
| CN107674908A (en) * | 2017-11-30 | 2018-02-09 | 江苏中科重工股份有限公司 | A kind of accelerator for biogas fermentation |
| CN108588131A (en) * | 2018-04-11 | 2018-09-28 | 华北电力大学 | A method of the aerogenesis of biomass anaerobic fermentation containing cadmium |
| CN108676790A (en) * | 2018-07-25 | 2018-10-19 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of biogas fermentation complex micro organism fungicide |
| CN109722451A (en) * | 2017-10-27 | 2019-05-07 | 西北农林科技大学 | The solid biologic film accelerator for anaerobic digestion and preparation method thereof that charcoal mediates |
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| CN102876725A (en) * | 2012-09-18 | 2013-01-16 | 安徽农业大学 | Active compound additive for promoting fermentation of methane and use method thereof |
| CN102925493A (en) * | 2012-11-21 | 2013-02-13 | 江苏省农业科学院 | Accelerant for producing biogas by straw anaerobic digestion as well as preparation method and application thereof |
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| CN102876725A (en) * | 2012-09-18 | 2013-01-16 | 安徽农业大学 | Active compound additive for promoting fermentation of methane and use method thereof |
| CN102925493A (en) * | 2012-11-21 | 2013-02-13 | 江苏省农业科学院 | Accelerant for producing biogas by straw anaerobic digestion as well as preparation method and application thereof |
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| 潘云峰等: "微量金属元素对牛粪厌氧发酵产气特性的影响", 《江苏环境科技》, 31 August 2006 (2006-08-31) * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397053A (en) * | 2013-08-20 | 2013-11-20 | 湖南省土壤肥料研究所 | Activator for methanogen and usage method thereof |
| CN103642846A (en) * | 2013-12-24 | 2014-03-19 | 齐鲁工业大学 | Accelerant for increasing methanogenesis ratio of methane bacteria |
| CN103642846B (en) * | 2013-12-24 | 2016-01-20 | 齐鲁工业大学 | A kind of promotor of improving methanobacteria methane phase ratio |
| CN104593432A (en) * | 2015-01-11 | 2015-05-06 | 北京化工大学 | Method for improving methane yield of corn straw anaerobic digestion by combined pretreatment of alkali and salt |
| CN104593432B (en) * | 2015-01-11 | 2018-03-30 | 北京化工大学 | The method that alkali improves maize straw anaerobic digestion methane production with salt combined pretreatment |
| CN104609547A (en) * | 2015-01-27 | 2015-05-13 | 唐山中科格润环境技术有限公司 | Medicament for improving anaerobe activity |
| CN105543285A (en) * | 2016-02-02 | 2016-05-04 | 青岛天人环境股份有限公司 | Method for producing biogas by enhancing kitchen waste anaerobic fermentation |
| CN109722451A (en) * | 2017-10-27 | 2019-05-07 | 西北农林科技大学 | The solid biologic film accelerator for anaerobic digestion and preparation method thereof that charcoal mediates |
| CN107674908A (en) * | 2017-11-30 | 2018-02-09 | 江苏中科重工股份有限公司 | A kind of accelerator for biogas fermentation |
| CN108588131A (en) * | 2018-04-11 | 2018-09-28 | 华北电力大学 | A method of the aerogenesis of biomass anaerobic fermentation containing cadmium |
| CN108676790A (en) * | 2018-07-25 | 2018-10-19 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of biogas fermentation complex micro organism fungicide |
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Application publication date: 20130821 |