CN101845349B - Application of constructed wetland plant biomass resource - Google Patents

Application of constructed wetland plant biomass resource Download PDF

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Publication number
CN101845349B
CN101845349B CN2010101870687A CN201010187068A CN101845349B CN 101845349 B CN101845349 B CN 101845349B CN 2010101870687 A CN2010101870687 A CN 2010101870687A CN 201010187068 A CN201010187068 A CN 201010187068A CN 101845349 B CN101845349 B CN 101845349B
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China
Prior art keywords
constructed wetland
wetland plant
plant biomass
biomass resource
fuel
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CN2010101870687A
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Chinese (zh)
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CN101845349A (en
Inventor
何明雄
胡启春
祝其丽
潘科
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Biogas Institute of Ministry of Agriculture
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Biogas Institute of Ministry of Agriculture
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    • 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
    • Y02E50/10Biofuels, e.g. bio-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
    • 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 an application of constructed wetland plant biomass resource, which utilizes the constructed wetland plant biomass resource as raw material to prepare fuel. The invention not only can solve the problem of secondary pollution of the constructed wetland, but also can prepare solid shaping fuel, methane and fuel alcohol of which the quality is superior to that of the prior art so as to realize effective utilization of resource. The invention can couple the constructed wetland technology and the bioenergy technology in the technical mode of building the constructed wetland-bioenergy technology coupling, has favourable economic applicability and stable purification effect and effectively utilizes resource.

Description

The application of constructed wetland plant biomass resource
Technical field
The present invention relates to a kind of application of biomass resource and with its method for preparing fuel, relate in particular to a kind of application of constructed wetland plant biomass resource and prepare the method for fuel with it.
Background technology
Artificial swamp is the mode of disposing of sewage that is surging forward the seventies in 20th century, and its principle mainly is the interaction that utilizes between wetland mesostroma, wetland plant and the microorganism, purifies waste water by a series of physics, chemistry and biological approach.Wetland plant is the core of artificial swamp, in the artificial swamp technology, play an important role, mainly comprise pollutents such as direct absorbed nitrogen, phosphorus, cure by oxygen therapy redox reaction and aerobic microbiological activity and the enhancing that promotes the root district and the waterpower transmission of keeping medium etc. by root system.Not only can remove pollutent by wetland plant, can also promote circulation and the recycling of nutritive substance in the sewage, can also afforest the soil simultaneously, improve regional climate, promote the benign cycle of ecotope.Artificial swamp has removes that pollution effects is good, working cost is low and characteristics such as easy care, is widely used in the sewage disposal.Yet resource utilization and later use research for constructed wetland plant are comparatively vacant, have formed the secondary pollution problem of artificial swamp technology.
In addition, solid molding fuel, biogas and alcohol fuel generally adopt agricultural crop straw etc. to be raw material in the prior art.Agricultural crop straw is because its quality is light, volume is big, and transportation cost is higher, and regionality is comparatively obvious simultaneously, mainly is applicable to major grain producing areas such as northern China; And seasonality is comparatively obvious.And adopting agricultural crop straw is the alcohol fuel of feedstock production, because its content of lignin is higher, ethanol fermentation efficient is low; Agricultural crop straws etc. are that its output of feedstock production biogas is also lower.What produce the general employing of its pre-treatment of alcohol fuel simultaneously in the prior art is acid treatment, and its treatment condition are comparatively fierce, and are stronger to equipment corrosion, the work-ing life of having reduced equipment.
Constructed wetland plant because its fast growth, biomass are higher, as Herba Eichhorniae etc., it is reported that the annual production of every mu of Herba Eichhorniae can reach 50,000 tons; Simultaneously, wetland plant is once planted, and can forever gather in the crops, and adopt nutritive substance in the water body as nutrition source, does not need additionally to add nutrition, and therefore, its planting cost is lower; In addition, constructed wetland plant has higher Mierocrystalline cellulose and hemicellulose level as a kind of biomass resource of lignocellulose, lower content of lignin, and have higher calorific value, thereby can be used as a kind of new biomass resource and be used.But these wetland plants are not properly disposed at present, have caused the wasting of resources and secondary pollution problems.
Summary of the invention
The objective of the invention is to overcome the problems referred to above of existing artificial swamp and preparation solid molding fuel, biogas and alcohol fuel existence, a kind of application of constructed wetland plant biomass resource is provided and prepares the method for fuel with it, the present invention not only can solve the secondary pollution problem of artificial swamp, and can the preparation solid molding fuel in prior art of fine quality, biogas and alcohol fuel, improve the ethanol fermentation rate, realize the utilization of resource effectuation; By setting up artificial swamp---bioenergy lotus root connection technology mode, realize that the lotus root of artificial swamp technology and bioenergy technology joins, economic serviceability is good, decontamination effect improving is stable and utilization of resources.
For achieving the above object, the technical solution used in the present invention is as follows:
The application of-kind of constructed wetland plant biomass resource is characterized in that: utilize constructed wetland plant biomass resource to produce fuel for raw material.
Utilize constructed wetland plant biomass resource to produce solid molding fuel for raw material.
Described produce solid molding fuel for constructed wetland plant biomass resource through cutting, drying, recompress into bulk or particulate state and form solid molding fuel.
Described constructed wetland plant biomass resource is through being cut to 6-10cm, being dried to water ratio less than 15%, is compressed into bulk or particulate state as solid molding fuel through solid forming equipment again.
Utilize constructed wetland plant biomass resource to produce biogas fuel for raw material.
The described biogas fuel of producing is directly put into the anaerobic ferment devices fermentation and is produced biogas fuel for constructed wetland plant biomass resource is cut to 6-10cm.
Utilize constructed wetland plant biomass resource to be raw material ethanol production fuel.
Described ethanol production fuel for constructed wetland plant biomass resource through seasoning to water ratio less than 10%, pulverized the 20-80 mesh sieve, pass through pre-treatment, enzymic hydrolysis, preparing ethanol by fermentation fuel again.
Described pre-treatment is, it is 1% NaOH solution that raw material is put into concentration, and the mass ratio of raw material and NaOH solution is 1: 10, handles 12 hours under room temperature, 180rpm, adds concentration again and be 31% H in the compound of raw material and NaOH 2O 2Handled 12 hours, and after the solid-liquid separation, collected solid residue, and water washing, regulate pH to 4.8, be used for enzymic hydrolysis.
Described enzymic hydrolysis is, pretreated solid residue is added in pH4.8, the 0.1M sodium citrate buffer solution, adds the cellulase of 2.0%-4.0% again, at 45-50 ℃, handles 6-12 hour under the condition of 120rpm.
Described fermentation is, the hydrolyzed solution after enzymolysis is finished is adjusted to pH 6.5 with NaOH, inoculates the ethanol fermentation bacterial strain, and at 30 ℃, shaking culture is at least 24 hours under the condition of 180rpm.
Described constructed wetland plant biomass resource comprises that again institutes such as power flower, Herba Eichhorniae, umbrella grass, reed, ginger, rhizoma alismatis, long cattail, tuber fern, cattail, yellow flag, Canna generalis Bailey, Rhizome of Common Aspidistra, common calla, Herba Veronicae Undullatae (Herba Veronicae anagallis-aquaticae) are useful on the plant resources of artificial swamp.
Employing the invention has the advantages that:
One, the invention solves the secondary pollution that existing artificial swamp exists, and based on constructed wetland plant being had higher Mierocrystalline cellulose and hemicellulose level, lower content of lignin, and have higher characteristics such as calorific value is prepared into biomass energy with it and recovery energy in addition.
Two, the present invention as Energy resources, has environmental protection, sustainable and advantage that cost is low with constructed wetland plant, meets low-carbon economy thought.
Three, as a kind of Energy resources, production method is simple with constructed wetland plant in the present invention, helps to promote the comprehensive benefit of artificial swamp, solves the secondary pollution problem of artificial swamp.
Four, in the pre-treatment of the present invention, the concentration of NaOH solution is 1%, it is little to have the NaOH usage quantity, treatment condition are advantage such as gentleness comparatively, the mass ratio of raw material and NaOH solution is 1: 10, has advantages such as the NaOH usage quantity is little, handles 12 hours under room temperature, 180rpm, advantage with treatment condition gentleness, concentration are 31% H 2O 2Handled 12 hours, and can effectively remove the material generation of inhibition fermentations such as xylogen.
Five, in the enzymic hydrolysis of the present invention, adopt pH4.8,0.1M sodium citrate buffer solution, have advantage with low cost, add cellulase again at 50 ℃, handled 12 hours under the condition of 120rpm, have the enzymatic hydrolysis condition gentleness, advantage such as low for equipment requirements.
Six, in the present invention's fermentation, hydrolyzed solution is adjusted to pH 6.5 with NaOH, has advantages such as with low cost, at 30 ℃, shaking culture is at least 24 hours under the condition of 180rpm, improves the ethanol fermentation rate, alcohol yied reaches maximum, is the 0.22-8.27g/100g dried feed.
Seven, among the present invention, produce solid molding fuel for constructed wetland plant biomass resource through be cut to about 6-10cm, drying, recompress into bulk or particulate state and form solid molding fuel, the solid molding fuel rate of combustion that obtains obviously is better than adopting the solid molding fuel of preparation such as agricultural crop straw.
Eight, among the present invention, produce biogas fuel for constructed wetland plant biomass resource is cut to 6-10cm, directly put into the anaerobic ferment devices fermentation and produce biogas fuel, the productive rate of biogas is apparently higher than the biogas of preparations such as employing agricultural crop straw.
Embodiment
Embodiment 1
A kind of application of constructed wetland plant biomass resource utilizes constructed wetland plant biomass resource to produce fuel for raw material.
The present invention can utilize constructed wetland plant biomass resource to produce solid molding fuel for raw material.
When producing solid molding fuel with constructed wetland plant biomass resource through cutting, drying, recompress into bulk or particulate state and form solid molding fuel.
For example, constructed wetland plant biomass resource through about cutting 6-10cm, be dried to water ratio less than 15%, be compressed into bulk or particulate state as solid molding fuel through solid forming equipment again.
Embodiment 2
A kind of application of constructed wetland plant biomass resource utilizes constructed wetland plant biomass resource to produce fuel for raw material.
The present invention can utilize constructed wetland plant biomass resource to produce biogas fuel for raw material.
For example, constructed wetland plant biomass resource is cut to 6-10cm, directly puts into the anaerobic ferment devices fermentation and produce biogas fuel.
Embodiment 3
A kind of application of constructed wetland plant biomass resource utilizes constructed wetland plant biomass resource to produce fuel for raw material.
The present invention can utilize constructed wetland plant biomass resource to be raw material ethanol production fuel.
Described ethanol production fuel for constructed wetland plant biomass resource through seasoning to water ratio less than 10%, pulverized the 20-80 mesh sieve, pass through pre-treatment, enzymic hydrolysis, preparing ethanol by fermentation fuel again.
Pre-treatment is, it is 1% NaOH solution that raw material is put into concentration, and the mass ratio of raw material and NaOH solution is 1: 10, handles 12 hours under room temperature, 180rpm, adds concentration again and be 31% H in the compound of raw material and NaOH 2O 2Handled 12 hours, and after the solid-liquid separation, collected solid residue, and water washing, regulate pH to 4.8, be used for enzymic hydrolysis.
Enzymic hydrolysis is, pretreated solid residue is added in pH4.8, the 0.1M sodium citrate buffer solution, adds the cellulase of 2.0-4.0% again at 50 ℃, handles 12 hours under the condition of 120rpm.The add-on of cellulase is the quality with respect to pending solid residue.
Fermentation is, the hydrolyzed solution after enzymolysis is finished is adjusted to pH 6.5 with NaOH, inoculates Pichi strain DSM3652, and at 30 ℃, shaking culture is at least 24 hours under the condition of 180rpm.Pichi strain DSM3652 has preservation in German DSMZ DSMZ.
Constructed wetland plant biomass resource comprises that again institutes such as power flower, Herba Eichhorniae, umbrella grass, reed, ginger, rhizoma alismatis, long cattail, tuber fern, cattail, yellow flag, Canna generalis Bailey, Rhizome of Common Aspidistra, common calla, Herba Veronicae Undullatae (Herba Veronicae anagallis-aquaticae) are useful on the plant resources of artificial swamp.
Embodiment 4
Different constructed wetland plants are as the assessment of Energy resources
Different constructed wetland plant samples after seasoning 5-10 days (water ratio is less than 10%), were pulverized the 20-80 mesh sieve, be stored in-20 ℃ standby.Utilize IKA C2000 heating-value determination instrument to measure the calorific value of different constructed wetland plant resources, as shown in table 1.
The different constructed wetland plants of table 1 are as Energy resources heating-value determination result
As known from Table 1, constructed wetland plant has the calorific value suitable with maize straw, therefore can be used as a kind of resource of biomass energy preferably and is used.Solid molding fuel, biogas and alcohol fuel quality by the preparation of the treatment process among the present invention can be better than maize straw.
Embodiment 5
The constructed wetland plant resource is produced solid molding fuel:
Constructed wetland plant biomass resource is through being cut to about 6-10cm, being dried to water ratio less than 15%, pass through commercial solid forming equipment again, be compressed into bulk or particulate state acts as a fuel, have convenient transportation, calorific value advantages of higher, can be used as a kind of alternative fuel; Ash after the combustion can be improved the soil as the potash fertilizer direct returning to farmland of high-quality simultaneously.
Embodiment 6
The constructed wetland plant resource is produced alcohol fuel
Constructed wetland plant biomass resource drying (the general requirement water ratio is less than 10%), pulverizing, again through preconditioning techniques such as peracid, alkali or steam explosions, re-use cellulase hydrolysis, as the raw material of ethanol fermentation, produce alcohol fuel by microorganism (as existing yeast saccharomyces cerevisiae, bacterium and recombination yeast etc.) fermentation etc.
The constructed wetland plant biomass resource drying to water ratio less than 10%, pulverize, technical finesse is used for cellulase hydrolysis through the NaOH-cellulose treatment again.
NaOH-cellulose treatment technical matters:
The solid-liquid mass ratio of raw material and NaOH solution is 1: 10, and NaOH concentration is 1%, adopts conventional constant-temperature shaking culture shaking table, handles 12 hours at room temperature, 180rpm; Adding concentration is 31% H in the mixture of raw material and NaOH solution 2O 2(w/v), H 2O 2Being diluted to concentration is 1% (w/v), handles 12 hours, and solid-liquid separation is collected residue; Solid residue H 2PH to 4.8 is regulated in the O washing, is used for cellulase hydrolysis.
Utilizing bamboo biomass waste cellulase hydrolysis technology:
Solid residue is added in the 0.1M sodium citrate buffer solution (pH4.8), add cellulase again, adopt conventional constant-temperature shaking culture shaking table under 50 ℃, the condition of 120rpm, to handle 12 hours.
Adopt efficient ethanol fermentation strain fermentation:
After enzymolysis finished, hydrolyzed solution was adjusted to pH 6.5 with NaOH, inoculates Pichi strain DSM3652, and at 30 ℃, shaking culture is 24 hours under the 180rpm condition.The result shows: after fermentation in 24 hours, alcohol yied reaches maximum, is the 0.22-8.27g/100g dried feed.Pichi strain DSM3652 has preservation in German DSMZ DSMZ.
Obviously; those of ordinary skill in the art is according to the technical knowledge of grasping and customary means; according to above said content, can also make the various ways that does not break away from basic technical scheme of the present invention, these pro forma conversion are all within protection scope of the present invention.

Claims (3)

1. the application of a constructed wetland plant biomass resource is characterized in that: utilize constructed wetland plant biomass resource to be raw material ethanol production fuel; Described ethanol production fuel for constructed wetland plant biomass resource through seasoning to water ratio less than 10%, pulverized the 20-80 mesh sieve, pass through pre-treatment, enzymic hydrolysis, preparing ethanol by fermentation fuel again; Described pre-treatment is, it is 1% NaOH solution that raw material is put into concentration, and the mass ratio of raw material and NaOH solution is 1:10, handles 12 hours under room temperature, 180 rpm, adds concentration again and be 31% H in the compound of raw material and NaOH 2O 2Handled 12 hours, and after the solid-liquid separation, collected solid residue, and water washing, regulate pH to 4.8, be used for enzymic hydrolysis.
2. the application of constructed wetland plant biomass resource according to claim 1, it is characterized in that: described enzymic hydrolysis is, pretreated solid residue is added in pH4.8, the 0.1 M sodium citrate buffer solution, add the cellulase of 2.0-4.0% again at 50 ° of C, handled 12 hours under the condition of 120 rpm.
3. the application of constructed wetland plant biomass resource according to claim 2, it is characterized in that: described fermentation is that the hydrolyzed solution after enzymolysis is finished is adjusted to pH 6.5 with NaOH, inoculates the ethanol fermentation bacterial strain, at 30 ° of C, shaking culture is at least 24 hours under the condition of 180 rpm.
CN2010101870687A 2010-05-28 2010-05-28 Application of constructed wetland plant biomass resource Expired - Fee Related CN101845349B (en)

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CN104194858B (en) * 2014-09-05 2017-06-30 苏州德新元节能环保科技有限公司 A kind of use pasture and water prepare the method and its production line of biological particles
CN105002224A (en) * 2015-07-03 2015-10-28 浙江大学 Method for efficiently preparing ethanol by using water body remediation plants
CN105505507A (en) * 2015-12-28 2016-04-20 黄山锦富生物能源有限公司 Biomass granule fuel prepared from peels of carya cathayensis sarg and production method thereof
CN110813238A (en) * 2019-12-02 2020-02-21 深圳市碧园环保技术有限公司 Wetland plant resource utilization method
CN111676076B (en) * 2020-04-27 2021-06-18 吉林宏日新能源股份有限公司 Coupling method and system for ecological utilization and energy utilization of biomass resources

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999740A (en) * 2006-12-30 2007-07-18 陈启贵 Process of herbal fiber transferring to fule alcohol

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999740A (en) * 2006-12-30 2007-07-18 陈启贵 Process of herbal fiber transferring to fule alcohol

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