CN101121175A - Method for preprocessing stalk with alkali and ozone - Google Patents
Method for preprocessing stalk with alkali and ozone Download PDFInfo
- Publication number
- CN101121175A CN101121175A CNA2007101394941A CN200710139494A CN101121175A CN 101121175 A CN101121175 A CN 101121175A CN A2007101394941 A CNA2007101394941 A CN A2007101394941A CN 200710139494 A CN200710139494 A CN 200710139494A CN 101121175 A CN101121175 A CN 101121175A
- Authority
- CN
- China
- Prior art keywords
- straw
- ozone
- stalk
- present
- feed liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003513 alkali Substances 0.000 title claims abstract description 8
- 238000007781 pre-processing Methods 0.000 title abstract 3
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 14
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 14
- 239000004571 lime Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000010902 straw Substances 0.000 abstract description 22
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 7
- 238000006731 degradation reaction Methods 0.000 abstract description 7
- 229920005610 lignin Polymers 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 239000000575 pesticide Substances 0.000 abstract description 2
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 abstract 3
- 102000009123 Fibrin Human genes 0.000 abstract 2
- 108010073385 Fibrin Proteins 0.000 abstract 2
- 229950003499 fibrin Drugs 0.000 abstract 2
- 239000002154 agricultural waste Substances 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 238000012993 chemical processing Methods 0.000 abstract 1
- 230000003413 degradative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The present invention belongs to the technical field of agricultural waste straw treatment, in specific to a straw degradation preprocessing technology; the present invention solves the problem that the present biological or physical and chemical processing of straw takes a long time and the degradation rate is low because the straw lignin and fibrin are hard to be degraded. With the straw alkali ozone preprocessing method, the straw is mixed with limewater after being smashed and the straw (according to dry mass) accounts for 3 to 15 percent of the liquid total weight and the lime accounts for 0.3 to 1 percent of the liquid total weight; after the mixed liquid being input with low-flux ozone, the liquid is kept still. The present invention kills a plurality of harmful bacteria carried by the straw and decomposes the possible residual pesticide; in addition, the invention can damage the lignin and fibrin structures of the straw to change the macromolecule material which is hard to be degraded into micromolecule material; the degradation rate of the lignin and fibrin in the subsequent processing is increased and the processing speed is accelerated.
Description
Technical field
The invention belongs to the technical field that the agriculture waste stalk is handled, be specifically related to a kind of degraded preconditioning technique of stalk.
Background technology
At present, the agricultural crop straw that the vast rural area of China is produced every year is about 800,000,000 tons, wherein fails to obtain effective and reasonable utilization at least about 500,000,000 tons stalk, perhaps discarded, perhaps burn, environment has been caused serious pollution, also wasted the precious resources and the energy of being contained in the stalk simultaneously.At present, people have explored many methods with straw degradative, realize turning waste into wealth.Mainly contain following several:
1) straw ammoniation greenfeed generally carries out proportioning to the stalk that crushes and a certain proportion of urea or ammonia, carries out closed stack retting then, improves the gross protein value and the nutritive value of stalk; But because the ammonification time long (needing about 20～40 days) and less and preserve and shortcoming such as be difficult for to straw lignin and cellulosic structure influence, thus as yet not large tracts of land popularize, and draught animal has not been raised in considerable rural area.
2) stalk field also on the spot, through country and local wideling popularize for many years, this technology has obtained effect in some areas, but because the problem on regional farming custom and the treatment technology makes this technology also fail to obtain overall application.
3) stalk fermentation produces biogas, in the household biogas technology of promoting at present, there are some areas applying the stalk stack retting and produce biogas technology, its lime (alkali) that adopts when handling stalk amount is very big, general concentration is 5%～10%, when post-processed,, cause intractability to strengthen the processing cost height because feed liquid alkalescence is excessive.
Summary of the invention
The present invention causes problems such as degradation rate is low in order to solve long, straw lignin of existing straw biological or physics and chemistry disposal methods time and cellulose difficult degradation, and a kind of alkali and ozone preprocess method of stalk is provided.
The present invention adopts following technical scheme to realize:
Stalk and limewash after a kind of will the pulverizing are mixed into feed liquid, wherein the dry of stalk accounts for the 3%-15% of feed liquid total amount, lime accounts for the 0.3%-1% of feed liquid total amount, all the other are water, feed ozone to mixed feed liquid, the ozone flux is 2-5 gram/(cubic meter hour), time 1-4 hour, leaves standstill then 6-24 hour.The feeding mode of ozone is continuous or compartment.
Among the present invention, the effect of lime is to destroy straw lignin and cellulosic tight structure by the base of generation soluble in water, the effect of ozone is to kill in the feed liquid all kinds of harmful bacterium and parasitic ovum and because its strong oxidation, make the macromolecular substances of difficult degradation in the stalk be converted into the small-molecule substance of easy biological treatment, and the synergy of above-mentioned two kinds of materials make its usefulness separately obtain bigger promotion.
The present invention compares with existing soda lime method stalk treatment technology, and lime (alkali) amount that adopts when handling stalk reduces greatly, thus when avoiding post-processed because feed liquid excessive increase intractability of alkalescence and cost.
Beneficial effect of the present invention: evidence, to harmful bacterium in the processing stalk feed liquid is more than 99.9%, to the clearance of remains of pesticide in the stalk also more than 95%, in follow-up biodegradation is handled, its straw degradative velocity ratio improves 2 times without the pretreated straw degradative speed of the present invention, and degradation rate improves 30%.The present invention can carry out preliminary treatment to stalk in mode low-cost, fast, has application fields, industry such as makes, brewage as the processing of biomass energy production (stalk marsh gas), feed, fertilizer and all can use, have high promotion and application value.
The specific embodiment
Embodiment is used for illustrating of the present invention, rather than it is imposed any restrictions.
Embodiment 1: dry straw 100kg (water content 10%), water 890Kg, give birth to (ripe) lime 10Kg, mix back feed liquid total amount 1000Kg, wherein the stalk dry matter content is 9%, and lime content is 1%, use ozone generator that ozone is fed in the mixed feed liquid, ozone amount is 5g/h, and continuous 1 hour, feed liquid leaves standstill preliminary treatment in 6 hours to be finished.
Embodiment 2: dry straw 20kg (water content 10%), water 478Kg, give birth to (ripe) lime 2Kg, mix back feed liquid total amount 500Kg, wherein the stalk dry matter content is 4.5%, lime content is 0.4%, use ozone generator that ozone is fed in the mixed feed liquid, ozone amount is 2g/h, opens to stop 2 hours in 1 hour, the logical 4 hours ozone time of accumulative total, feed liquid leaves standstill preliminary treatment in 24 hours to be finished.
Embodiment 3: dry straw 50kg (water content 10%), water 1438Kg, give birth to (ripe) lime 12Kg, mix back feed liquid total amount 1500Kg, wherein the stalk dry matter content is 3%, and lime content is 0.8%, use ozone generator that ozone is fed in the mixed feed liquid, ozone amount is 3g/h, and continuous 2 hours, feed liquid leaves standstill preliminary treatment in 6 hours to be finished.
Embodiment 4: dry straw 60kg (water content 10%), water 298.92Kg, give birth to (ripe) lime 1.08Kg, mix back feed liquid total amount 360Kg, wherein the stalk dry matter content is 15%, lime content is 0.3%, use ozone generator that ozone is fed in the mixed feed liquid, ozone amount is 2g/h, opens to stop 2 hours in 1 hour, the logical 4 hours ozone time of accumulative total, feed liquid leaves standstill preliminary treatment in 24 hours to be finished.
Claims (2)
1. the alkali and ozone preprocess method of a stalk, it is characterized in that stalk and limewash after pulverizing are mixed into feed liquid, wherein the dry of stalk accounts for the 3%-15% of feed liquid total amount, lime accounts for the 0.3%-1% of feed liquid total amount, all the other are water, feed ozone to mixed feed liquid, and the ozone flux is 2-5 gram/(cubic meter hour), time 1-4 hour, left standstill then 6-24 hour.
2. the alkali and ozone preprocess method of stalk according to claim 1 is characterized in that the feeding mode of ozone is continuous or compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101394941A CN101121175B (en) | 2007-09-22 | 2007-09-22 | Method for preprocessing stalk with alkali and ozone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101394941A CN101121175B (en) | 2007-09-22 | 2007-09-22 | Method for preprocessing stalk with alkali and ozone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101121175A true CN101121175A (en) | 2008-02-13 |
| CN101121175B CN101121175B (en) | 2011-01-05 |
Family
ID=39083787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101394941A Expired - Fee Related CN101121175B (en) | 2007-09-22 | 2007-09-22 | Method for preprocessing stalk with alkali and ozone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101121175B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010094985A1 (en) * | 2009-02-20 | 2010-08-26 | UCHRIN, Jánosné | Improved process for the preparation of a water-soluble humate-containing composition and the use thereof |
| WO2014067969A1 (en) | 2012-10-31 | 2014-05-08 | Shell Internationale Research Maatschappij B.V. | Process for pretreating a lignocellulosic material |
| CN105733878A (en) * | 2016-04-06 | 2016-07-06 | 北京化工大学 | Pretreatment mode for vinasse refermentation |
| CN106173262A (en) * | 2016-07-26 | 2016-12-07 | 安徽香杨林业有限公司 | A kind of processing method of rice wheat straw |
| CN109776461A (en) * | 2019-02-26 | 2019-05-21 | 东北农业大学 | A kind of co-production for producing furfural and methane product with stalk |
| CN112899323A (en) * | 2019-12-04 | 2021-06-04 | 中国农业大学 | Method for promoting inonotus obliquus to produce hypoglycemic active polysaccharide by adding pretreated birch sawdust |
-
2007
- 2007-09-22 CN CN2007101394941A patent/CN101121175B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010094985A1 (en) * | 2009-02-20 | 2010-08-26 | UCHRIN, Jánosné | Improved process for the preparation of a water-soluble humate-containing composition and the use thereof |
| WO2014067969A1 (en) | 2012-10-31 | 2014-05-08 | Shell Internationale Research Maatschappij B.V. | Process for pretreating a lignocellulosic material |
| CN105733878A (en) * | 2016-04-06 | 2016-07-06 | 北京化工大学 | Pretreatment mode for vinasse refermentation |
| CN105733878B (en) * | 2016-04-06 | 2019-04-23 | 北京化工大学 | A kind of pretreatment mode that vinasse ferment again |
| CN106173262A (en) * | 2016-07-26 | 2016-12-07 | 安徽香杨林业有限公司 | A kind of processing method of rice wheat straw |
| CN109776461A (en) * | 2019-02-26 | 2019-05-21 | 东北农业大学 | A kind of co-production for producing furfural and methane product with stalk |
| CN112899323A (en) * | 2019-12-04 | 2021-06-04 | 中国农业大学 | Method for promoting inonotus obliquus to produce hypoglycemic active polysaccharide by adding pretreated birch sawdust |
| CN112899323B (en) * | 2019-12-04 | 2022-03-22 | 中国农业大学 | Method for promoting inonotus obliquus to produce hypoglycemic active polysaccharide by adding pretreated birch sawdust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101121175B (en) | 2011-01-05 |
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| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: TAIYUAN TESHI BIOLOGICAL ENERGY TECHNOLOGY CO., LT Free format text: FORMER OWNER: HAN NONG Effective date: 20140121 |
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Free format text: CORRECT: ADDRESS; FROM: 030027 TAIYUAN, SHAANXI PROVINCE TO: 030006 TAIYUAN, SHAANXI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140121 Address after: 030006 room 407, block B, Pioneer Park, Taiyuan hi tech Zone, Shanxi Patentee after: Taiyuan special Bio Energy Technology Co.,Ltd. Address before: 030027 B, block 407, science and Technology Street, hi tech Zone, Shanxi, Taiyuan Patentee before: Han Nong |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 030006 Room 201, Block B, Overseas Students Pioneering Park, 11 Science and Technology Street, Taiyuan High-tech District, Shanxi Province Patentee after: Taiyuan Teshi Biotechnology Co.,Ltd. Address before: 030006 room 407, block B, Pioneer Park, Taiyuan hi tech Zone, Shanxi Patentee before: Taiyuan special Bio Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190919 Address after: No.1 Building, 424 Caozhi Road, Xinnan Village, Xinchang Town, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Teshi Ecology Technology Co.,Ltd. Address before: 030006 Room 201, Block B, Overseas Students Pioneering Park, 11 Science and Technology Street, Taiyuan High-tech District, Shanxi Province Patentee before: Taiyuan Teshi Biotechnology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20200922 |