CN106748560A - A kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate - Google Patents

A kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate Download PDF

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Publication number
CN106748560A
CN106748560A CN201710155324.6A CN201710155324A CN106748560A CN 106748560 A CN106748560 A CN 106748560A CN 201710155324 A CN201710155324 A CN 201710155324A CN 106748560 A CN106748560 A CN 106748560A
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stalk
hydrolysis acidification
anaerobic
sludge
yellow
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Inventor
李维尊
鞠美庭
邢艺洲
王剑
杨茜
木合塔尔·吐尔洪
王晶
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Kashi, University of
Nankai University
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Kashi, University of
Nankai University
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • Health & Medical Sciences (AREA)
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  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Soil Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Fertilizers (AREA)

Abstract

It is a kind of that the method that organic acid is used for soil acidification improvement of producing is acidified as substrate is hydrolyzed with yellow stalk, it is that enrichment culture first is carried out to hydrolysis acidification bacterium, alkali process then are carried out to stalk, finally inoculation bacterium source is hydrolyzed and produces acid.Described method is first, acclimating culture to be oriented to initial bacterium source with microcrystalline cellulose；Secondly, alkali solid-state pretreatment is carried out to stalk；Again, by certain mass than mixed straw and inoculum, be hydrolyzed acidifying under specific anaerobic condition；Finally, extracting acidifying solution is used for soil improvement.It is an advantage of the invention that it provides the method for suitable yellow stalk hydrolysis acidification, sour efficiency high is produced.Compared to routine hydrolysis acidization tool, the method can reach the sour peak of product for 3 days.The method has the advantages that with low cost, simple and practical, non-secondary pollution, and can realize being adapted to the purpose of the soil improvement that blueberry is planted on ecological significance.

Description

A kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate
Technical field
The present invention relates to produce acid for the method for soil acidification improvement by substrate effectively hydrolyzing of yellow agricultural crop straw.
Background technology
China is used as 1,500,000,000 mu of large agricultural countries in farmland are possessed, and the annual agricultural crop straw amount for producing is very big, causes serious Environmental pollution.Therefore solved produced by annual stalk in the urgent need to a kind of method of the digestion stalk of more highly effective Environmental pressure.If can effectively utilize, the contradiction between rural area plant development and environment can be relaxed, resource can be realized again Recycle, a kind of feasible method can be provided for the treatment of China agricultural crop straw, also comply with the current environmental protection of China Policy.
Anaerobic hydrolysis-acidification technology initially applies to waste water treatment process, i.e., will in the presence of a large amount of hydrolysis acidification bacteriums Insoluble hydrolysis of organic matter is dissolved organic matter, and the macromolecular substances of difficult for biological degradation are converted into small point of easily biological-degradable The process of sub- material, and produce the various organic acids to be used for other field by the metabolic process of microorganism.Because yellow stalk is special Different physicalchemical structure, conventional hydrolysis acidification bacterium is difficult degraded to it in nature.To improve the hydrolysis acidification of stalk Effect, domestication is oriented to bacterium source and to carry out to stalk appropriate pretreatment very crucial.By taming and pre-processing, in sludge Hydrolysis acidification bacterium can effectively using the cellulose and hemicellulose in stalk, the organic acid of generation is used as important intermediate supersession Product is largely accumulated.Organic acid can not only be directly absorbed and used by plants, moreover it is possible to the effect of improvement is played to soil.
Used as a kind of emerging fruit tree, with nutrition higher and medical value, development blueberry industry has very heavy blueberry Big economic benefit, social benefit and ecological benefits.But the requirement that blueberry grows to soil environment is stricter, that is, need Strongly acidic soil（pH 4.5-5.5）.It is exactly that soil improvement cost is too high that current blueberry cultivation compares distinct issues, and this is serious Restrict the industrialized development of blueberry.In order to accelerate the high yield and quality cultivation of blueberry, the plantation for blueberry carries out soil acidification and changes It is good to be particularly important.
The content of the invention
The purpose of the present invention is according to above mentioned problem, there is provided be hydrolyzed acidifying most by substrate of yellow agricultural crop straw The suitable research for producing sour condition and method.The method is representative substrate with broomcorn straw and maize straw, and inoculation is tamed and dociled by orientation The bacterium source of change, by controlling hydrolysis acidification condition, to obtain high yield organic acid.
To achieve the above object, technical scheme comprises the following steps：
（1）Active anaerobic sludge is tamed with microcrystalline cellulose, is enriched with the hydrolysis acidification bacterium of efficient degradation stalk；
（2）Yellow stalk is pre-processed using solid base；
（3）Sludge after domestication is mixed with the stalk handled well by certain mass ratio, the moisture content of regulation system and just Beginning pH value, under conditions of complete closed anaerobic, constant temperature is hydrolyzed and is acidified 3-4 days, obtains acidifying solution；
（4）Extraction acidifying solution is improved or enters row element compounding and prepares blueberry fertilizer special for organic, remaining solid for soil acidification Material can be used for anaerobic digestion methane production.
Wherein, described active anaerobic sludge is taken from this laboratory sewage treatment anaerobic section sludge, and its initial TS is 14.76%。
Wherein, the acclimation method of described active anaerobic sludge is：Anaerobic fermentation tank（The L of cumulative volume 10, effective volume 6 L）Initial sludge is introduced, is 2-7% with distilled water regulating system TS values.Start heater preculture 3 under the conditions of 33-42 DEG C My god；From 4th day, the daily periodically mL of input and output material 200.Charging is formulated as：150-200 mL distilled water and 7-15 g microcrystalline celluloses Element；By 2 water conservancy residence times（HRT）Domestication after（HRT 40 d）, domestication terminates；The anaerobism mud can be used as follow-up test Bacterium source.
Wherein, described yellow stalk is the broomcorn straw or maize straw crushed, and crosses 10-20 mesh sieves（Take the lower rate of sieve）.
Wherein, described solid base is the solids of Ca (OH) 2, and 4%-7% according to stalk quality is added, and is adjusted by distilled water Section to system moisture content is 75%-85%, and 1-2d is processed under the conditions of 55 DEG C -65 DEG C.
Wherein, by the sludge after domestication and the stalk handled well in mass ratio 1：（1-2）Mixed, distilled water regulation TS It is 5-6%.KOH regulations pH is 8-11；It is passed through nitrogen 3-5 min and creates anaerobic environment；It is permanent under conditions of complete closed anaerobic Warm 37-45 °C acidifying 3-4 days that is hydrolyzed.
The advantage of the invention is that yellow stalk can be carried out diversification classified utilization, with low cost, operation letter The single, advantage of non-secondary pollution.Compared to traditional stalk single treatment mode, its organic acid for producing can not only be carried out to soil Acidifying improvement, moreover it is possible to provide raw material for the preparation of follow-up blueberry fertilizer special for organic and stalk produce natural pond.
Specific embodiment
The present invention is described in further detail by following examples, but the technology contents that are described of the present embodiment be it is illustrative, Rather than limited, protection scope of the present invention should not be limited to according to this.
Embodiment 1：
A kind of method for efficiently producing acid after hydrolysis acidification with broomcorn straw as substrate, step is as follows：
1）Anaerobic fermentation tank（The L of cumulative volume 10, the L of effective volume 6）Introduce initial sludge（TS 14.76%）, adjusted with distilled water System TS values are 3%.Start heater preculture 3 days under the conditions of 37.0 ± 0.5 DEG C.From 4th day, daily periodically input and output material 200 mL.Charging is formulated as：200 mL distilled water and 10 g microcrystalline celluloses.By 2 water conservancy residence times（HRT）Domestication Afterwards（HRT 40 d）, domestication terminates.
2）The g of broomcorn straw 20 for being crushed to 10 mesh is taken, 1.2 g Ca (OH) are added2Solid, is adjusted with 16 g distilled water and contained Water rate.After sealing, it is put into 60 °C of baking ovens and processes 24 h.
3）Learnt from else's experience domestication bacterium source, measure its TS=0.831%.The effective volume for specifying whole system is 150ml.Accurately Weigh 13.291g to be mixed by the stalk and 13.291g sludge of pretreatment, add distilled water until cumulative volume is 150ml （TS 5%）.Wherein bacterium source and the mass ratio of stalk is 1：1.
4）It is 9 with the initial pH of KOH solution regulation system of 1 mol/L, the nitrogen of a period of time is passed through, until whole system In anaerobic state.
5）After connection collection airbag, device is sealed, be subsequently placed in hydrolysis acidification 4 under 41 DEG C of incubator constant temperature My god.
Experimental result：After reaction terminates, measure at the end of reaction that total organic acids concentration is in system using colorimetric method 3040mg/L (with Acetometer).
Embodiment 2：
A kind of method for efficiently producing acid after hydrolysis acidification with maize straw as substrate, step is as follows：
1）Anaerobic fermentation tank（The L of cumulative volume 10, the L of effective volume 6）Introduce initial sludge（TS 14.76%）, adjusted with distilled water System TS values are 3%.Start heater preculture 3 days under the conditions of 37.0 ± 0.5 DEG C.From 4th day, daily periodically input and output material 200 mL.Charging is formulated as：200 mL distilled water and 10 g microcrystalline celluloses.By 2 water conservancy residence times（HRT）Domestication Afterwards（HRT 40 d）, domestication terminates.
2）The g of maize straw 20 for being crushed to 10 mesh is taken, 1.2 g Ca (OH) are added2Solid, is adjusted with 16 g distilled water and contained Water rate.After sealing, it is put into 60 °C of baking ovens and processes 24 h.
3）Learnt from else's experience the bacterium source 13.291g for taming（TS=0.831%）Mix with the pretreated maize straws of 13.291 g, Distilled water is added until cumulative volume is 150 ml（TS 5%）.Wherein bacterium source and the mass ratio of stalk is 1：1.
4）It is 11 with the initial pH of KOH solution regulation system of 1 mol/L, is passed through the nitrogen of a period of time, until whole body System is in anaerobic state.
5）After connection collection airbag, device is sealed, be subsequently placed in hydrolysis acidification 4 under 45 DEG C of incubator constant temperature My god.
Experimental result：After reaction terminates, measure at the end of reaction that organic acid concentration is 1825 in system using colorimetric method Mg/L (with Acetometer).
Embodiment 3：
A kind of method for efficiently producing acid after hydrolysis acidification with maize straw as substrate, step is as follows：
1）Anaerobic fermentation tank（The L of cumulative volume 10, the L of effective volume 6）Introduce initial sludge（TS 14.76%）, adjusted with distilled water System TS values are 3%.Start heater preculture 3 days under the conditions of 37.0 ± 0.5 DEG C.From 4th day, daily periodically input and output material 200 mL.Charging is formulated as：200 mL distilled water and 10 g microcrystalline celluloses.By 2 water conservancy residence times（HRT）Domestication Afterwards（HRT 40 d）, domestication terminates.
2）The maize straw 20g for being crushed to 20 mesh is taken, 1.2 g Ca (OH) are added2Solid, adjusts aqueous with 16g distilled water Rate.After sealing, it is put into 60 °C of baking ovens and processes 24 h.
3）Learnt from else's experience the g of bacterium source 6.700 for taming（TS=0.831%）Mix with the pretreated maize straws of 13.400 g, Distilled water is added until cumulative volume is 150 ml（TS 5%）, wherein bacterium source and the mass ratio of stalk is 1：2.
4）It is 10 with the initial pH of KOH solution regulation system of 1 mol/L, is passed through the nitrogen of a period of time, until whole body System is in anaerobic state.
5）After connection collection airbag, device is sealed, be subsequently placed in hydrolysis acidification under 37 DEG C of incubator constant temperature 4 days.
Experimental result：After reaction terminates, measure at the end of reaction that organic acid concentration is 1545mg/ in system using colorimetric method L (with Acetometer).

Claims (6)

1. it is a kind of that sour method is efficiently produced after hydrolysis acidification by substrate of yellow stalk, it is characterised in that to comprise the following steps：
1）Active anaerobic sludge is tamed with microcrystalline cellulose, is enriched with the hydrolysis acidification bacterium of efficient degradation stalk；
2）Yellow stalk is pre-processed using solid base；
3）Sludge after domestication is mixed with the stalk handled well by certain mass ratio, the moisture content of regulation system and initial PH value, under conditions of complete closed anaerobic, constant temperature is hydrolyzed and is acidified 3-4 days, obtains acidifying solution；
4）Extraction acidifying solution is improved or enters row element compounding and prepares blueberry fertilizer special for organic, remaining solids for soil acidification Matter can be used for anaerobic digestion methane production.
2. a kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate according to claim 1, it is special Levy and be：Described active anaerobic sludge is taken from this laboratory sewage treatment anaerobic section sludge, and its initial TS is 14.76%.
3. a kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate according to claim 1, it is special Levy and be：The acclimation method of described active anaerobic sludge is：Anaerobic fermentation tank（The L of cumulative volume 10, the L of effective volume 6）Introduce Initial sludge, is 2-7% with distilled water regulating system TS values；Start heater preculture 3 days under the conditions of 33-42 DEG C；4th It rises, daily the regular mL of input and output material 200；Charging is formulated as：150-200 mL distilled water and 7-15 g microcrystalline celluloses；By 2 The individual water conservancy residence time（HRT）Domestication after（HRT 40 d）, domestication terminates；The anaerobism mud can be used as the bacterium of follow-up test Source.
4. a kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate according to claim 1, it is special Levy and be：Described yellow stalk is the broomcorn straw or maize straw crushed, and crosses 10-20 mesh sieves（Take the lower rate of sieve）.
5. a kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate according to claim 1, it is special Levy and be：Described solid base is Ca (OH)2Solid, and 4%-7% according to stalk quality adds, and is adjusted to body by distilled water It is that moisture content is 75%-85%, 1-2d is processed under the conditions of 55 °C -65 DEG C.
6. a kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate according to claim 1, it is special Levy and be：By the sludge after domestication and the stalk handled well in mass ratio 1：（1-2）Mixed, distilled water regulation TS is 5- 6%；KOH regulations pH is 8-11；It is passed through nitrogen 3-5 min and creates anaerobic environment；Under conditions of complete closed anaerobic, constant temperature 37- 45 °C of acidifyings 3-4 days that are hydrolyzed.
CN201710155324.6A 2017-03-16 2017-03-16 A kind of method for efficiently producing acid after hydrolysis acidification with yellow stalk as substrate Pending CN106748560A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109486864A (en) * 2018-11-14 2019-03-19 江南大学 A kind of solid-state alkali treatment method improving organic waste anaerobic fermentation efficiency
CN109536537A (en) * 2018-12-13 2019-03-29 青岛合能环境技术有限公司 A kind of industrialized producing technology for accelerating stalk hydrolysis acidification

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174580A (en) * 2011-02-10 2011-09-07 中国科学院过程工程研究所 Method for preparing fermentation carbon source by hydrolysis and acidification of biomass raw materials
CN104630278A (en) * 2015-02-15 2015-05-20 陕西科技大学 Method for preparing hydrolytic acidification liquid by utilizing anaerobic technology based on wheat straw as raw material
CN105800897A (en) * 2016-05-11 2016-07-27 合肥工业大学 Method for intensifying rapid solid anaerobic digestion of residual sludge and straw by using zero-valent iron

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102174580A (en) * 2011-02-10 2011-09-07 中国科学院过程工程研究所 Method for preparing fermentation carbon source by hydrolysis and acidification of biomass raw materials
CN104630278A (en) * 2015-02-15 2015-05-20 陕西科技大学 Method for preparing hydrolytic acidification liquid by utilizing anaerobic technology based on wheat straw as raw material
CN105800897A (en) * 2016-05-11 2016-07-27 合肥工业大学 Method for intensifying rapid solid anaerobic digestion of residual sludge and straw by using zero-valent iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109486864A (en) * 2018-11-14 2019-03-19 江南大学 A kind of solid-state alkali treatment method improving organic waste anaerobic fermentation efficiency
CN109536537A (en) * 2018-12-13 2019-03-29 青岛合能环境技术有限公司 A kind of industrialized producing technology for accelerating stalk hydrolysis acidification

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Application publication date: 20170531