CN105601374A - Preparation method of compound ecological fertilizer from plant stalks - Google Patents
Preparation method of compound ecological fertilizer from plant stalks Download PDFInfo
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- CN105601374A CN105601374A CN201510961800.4A CN201510961800A CN105601374A CN 105601374 A CN105601374 A CN 105601374A CN 201510961800 A CN201510961800 A CN 201510961800A CN 105601374 A CN105601374 A CN 105601374A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
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- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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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
- 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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Abstract
The invention relates to a preparation method of a compound ecological fertilizer from plant stalks. The compound fertilizer is prepared by degrading a main raw material of plant stalks under the action of small molecule organic acid in the presence of a solid super acid catalyst, and combining with distiller's grains, bone meal, bran leather, humic acid, and NPK fertilizer. The raw materials consist of, by weight, 60-80 parts of plant stalks, 5-10 parts of distiller's grains, 5-15 parts of bone meal, 5-15 parts of wheat bran, 5-10 parts of humic acid and 30-50 parts of NPK fertilizer. The method uses a catalytic degradation technology for preparation of the compound ecological fertilizer, reaches high catalytic degradation efficiency of stalks, completes the conversion from stalks to compound ecological fertilizer within 16h at the highest speed, and has the advantages of simple operation, low cost, recyclable catalyst, and no corrosion of equipment, and can quickly obtain the product. The prepared compound ecological fertilizer can effectively enhance fertilizer efficiency, stimulate crop growth, control pests and diseases, improve the quality of agricultural products, and the absorb soil pollutants, improve the water retention capacity of soil and fertilizer and improve soil structure, and is conducive to the sustainable development of agriculture.
Description
Technical field
The present invention relates to the preparation field of ecological organic fertilizer, especially relate to a kind of formula and preparation method who utilizes straw to prepare complex ecological fertilizer.
Background technology
Shi Ge large agricultural country of China, various agricultural outputs are quite high, and agricultural straw resource is very abundant. In the past, agricultural crop straw is not effectively developed, and people are usually by its burning. Crop straw burning is not only the serious waste to resource, and the gas such as carbon dioxide, sulfur dioxide producing in burning process, and environment is caused to serious destruction. The smog of its generation causes visibility to reduce, and directly affects the normal operation of highway, railway and civil aviaton. Burn the pellet producing, can cause the disease of respiratory system. Visible, the harm of straw burning is huge. Stalk is developed fully, reduce environmental pollution and the waste to living resources, become a large focus of research.
In recent years, the chemical fertilizer amount of China's agricultural use increases considerably. A large amount of uses of chemical fertilizer, greatly reduce gas permeability and the sponginess of soil, make soil knot tying, organic decline, and fertility declines. Meanwhile, the physicochemical environment of soil also changes, acid enhancing. Soil acidification energy dissolved nutrients matter, and cause release and the enhancing of harmful substance, certainly will affect for a long time agriculture sustainable development. Visible, traditional fertilizer is very large to soil harm, and research use amount is little, and fertility is stronger, and the fertilizer of safety and environmental protection has a very big significance.
Straw is recycled, for the preparation of ecological fertilizer, can be realized the exploitation of stalk, can reduce again the use amount of traditional fertilizer, can improve atmosphere quality and soil quality simultaneously, there is the effect of getting twice the result with half the effort.
Chinese invention patent CN103641583A discloses a kind of straw fertilizer, formed by plant straw powder 50-60, peat composed of rotten mosses 20-26, diatomite 20-23, gypsum 9-11, urea 10-12, potassium sulfate 7-9, Diammonium phosphate (DAP) 8-10, humic acid 2-4, soil activating agent 7-9, utilize plant straw as main material, can play increase soil nutrient, improve the physical property of soil, the effect of increasing soil fertility.
Stalk is adopted the quick-fried broken PROCESS FOR TREATMENT of HTHP by Chinese invention patent CN103787715A, makes stalk under pressure 0.8-2.5MPa, fully broken and become thoroughly decomposed within a certain period of time, for fertilizer. But adopt the quick-fried broken technology of HTHP higher to equipment requirement, and serialization degree is lower, the efficiency of becoming thoroughly decomposed is low.
Chinese invention patent CN102718596A discloses a kind of biological straw fertilizer and production method and application, prepares biological straw fertilizer by stalk bacteria fermentation.
The cell membrane main component of straw is crude fibre, comprises the compositions such as cellulose, hemicellulose, lignin, pectin, cutin. The main component of cellular content is soluble protein, sugar, starch, mineral matter, non-albumen nitrogen-containing compound etc. Wherein cellulose, hemicellulose and lignin are all polymer, they stop that to cause straw degradative slow, be difficult to the conversion of fermenting at short notice. And above-mentioned traditional stalk fermentation transformation time is long, efficiency is low, high to equipment requirement.
Summary of the invention
The object of this invention is to provide a kind of method of utilizing straw to prepare complex ecological fertilizer, utilize stalk to do the degradable fermented efficiency of fertilizer low in solution prior art, cost is high, etching apparatus, the problems such as moldy metamorphism.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
Utilize straw to prepare a method for complex ecological fertilizer, it is characterized in that being divided into following four-stage: dewaxing matter pretreatment stage; High-temperature catalytic degradation period; The composite fermentation stage; Cooling fertilizer conservation and post-processing stages.
Mainly by the material of following weight portion as raw material: 60 ~ 80 parts of straws, 5 ~ 10 parts, vinasse, 5 ~ 15 parts of bone meal, 5 ~ 15 parts, wheat bran, 5 ~ 10 parts of humic acid, azophoska 30-50 part.
Preferably, described straw is common agricultural crop straw, and as wheat stalk, maize straw, broomcorn straw, granularity is not more than 120 orders; Described vinasse are for being rich in amino acid, the distiller's wass of sustainable fermentation;
Described bone meal is coarse bone powder, and wherein the weight fraction of calcium is 20 ~ 25%, the weight fraction 10 ~ 13% of phosphorus; Described wheat bran is the outer epidermis of wheat that is rich in nitrogen, phosphorus, calcium, potassium etc.; Described humic acid is for taking aromatic ring and alicyclic ring as basic structure, and is connected with the organic macromolecule of various functional groups; Described azophoska is one or more mixture in urea, potassium nitrate, ammonium nitrate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate (ADP), phosphoric acid one hydrogen ammonia, calcium superphosphate, potassium sulfate, potassium chloride.
The concrete operation method of described dewaxing matter pretreatment stage is, toluene-ethanol solution is mixed with stalk, is added to the water and is warming up to 70 ~ 90 DEG C, after 1.5 ~ 2h, filters; Regulate pH value to 3.5 ~ 4.0 with acetic acid solution, then regulate pH value to 6 ~ 7 with sodium hydroxide solution, after processing 4 ~ 5h, filter.
Preferably, the weight ratio of described toluene-absolute ethyl alcohol and stalk is 1:2 ~ 1:3; The mass fraction of described acetic acid solution is 10 ~ 15%; The mass fraction of described sodium hydroxide solution is 10 ~ 15%.
The concrete operation method of described high-temperature catalytic degradation period is that regulating stalk water content is 30 ~ 50%, adds solid super-strong acid and small molecular organic acid solution, is heated to 110 ~ 130 DEG C, reaction 0.5 ~ 1.5h.
Preferably, described solid super-strong acid consumption is 5 ~ 10% of stalk weight; Described small molecular organic acid liquid quality fraction is 10 ~ 15%, weight is stalk 2 ~ 3 times.
Preferably, described solid super-strong acid is S/Fe2O3Type, S/Fe3O4Type or S/ZrO2Type super acids.
Preferably, described small molecular organic acid is acetic acid, propionic acid or succinic acid.
The concrete operation method in described composite fermentation stage is vinasse, bone meal, wheat bran and humic acid to be added in acidifying stalk system to isolated air, fermentation 4 ~ 6h.
The concrete operation method of described cooling fertilizer conservation and post-processing stages is, stops heating, naturally is cooled to 20 ~ 30 DEG C, and recovery solid catalyst and small molecular organic acid, mix with azophoska and obtain a kind of complex ecological fertilizer that utilizes straw to prepare.
The present invention first adopts toluene-ethanol solution to remove the wax on straw surface, then makes catalyst by solid super strong acid substitution liquid acid, and adds small molecular organic acid solution, and rising temperature, to increase catalyst activity, promotes crude fibre acidified degradation. In this process, coarse-fibred macromolecular chain is degraded under acidization, and firmly network structure is destroyed for it, and cell membrane destroys. Chemical bond break to form many free radical intermediates, and then further cause chain reaction, crude fibre is depolymerized to the fragment that relative molecular mass is lower. Then, in degraded system, add vinasse, bone meal, wheat bran and humic acid, in the further sweat of system, by adding of other components of the further content that has increased the required nitrogen of plant growth, phosphorus, potassium element, make the complex ecological fertilizer finally obtaining have more excellent combination property.
Compared with prior art, the present invention has following beneficial effect:
(1) solid super-strong acid using in the present invention and organic acid, make stalk catalytic degradation efficiency high, can in 16h, complete the soonest the transformation from stalk to ripe complex ecological fertilizer, and use the moldy metamorphism problem after solid superacid as catalyst degraded can effectively be avoided stalk during the fermentation and ferment completely;
(2) solid super-strong acid using in the present invention and organic acid, not etching apparatus, easy and reactants separate, and removal process is simple to operate. Whole reaction can form the circulating system of sealing, has improved utilization rate of equipment and installations and material cycling efficiency, and has stopped the generation of secondary pollution.
(3) prices of raw and semifnished materials that the present invention uses are cheap, and majority is the leftover bits and pieces of trade waste or other industry, adds that solid super-strong acid use amount is less, and itself and the equal recoverable of organic acid, further reduced the processing cost of this method. The preparation process of this method needs heating, but heating-up temperature is low, and the time is short, and energy consumption is less, is beneficial to and economizes on resources and protection of the environment.
(4) in the present invention, make the fermentation such as straw degradative and humic acid, impel the nutrient in complex ecological fertilizer to transmit to crops, can strengthen fertilizer efficiency, stimulate plant growth, prevention and elimination of disease and pests, improves agricultural product quality, and can adsorb soil pollutant, improve soil fertilizer water holding capacity, improve soil texture, be conducive to realize agriculture sustainable development.
Detailed description of the invention
The following stated detailed description of the invention, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as follows with preferred embodiment, but not in order to limit the present invention, any disengaging within the scope of technical solution of the present invention, utilize the method for following announcement and technology contents to make a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of following examples being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Embodiment 1
The fertile preparation method of complex ecological: first, taking 30kg toluene-ethanol solution and 60kg granularity is the wheat stalk of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 70 DEG C, filters after processing 2h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 10%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 10%, after processing 4h, filter. Then regulating stalk water content is 40% left and right. Add again 5kgS/Fe2O3Type solid super-strong acid, and the 150kg mass fraction acetic acid solution that is 15%, and mix. The temperature to 110 DEG C that raises subsequently, reaction 1.5h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 5kg, bone meal 15kg, wheat bran 15kg, humic acid 5kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 6h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 30kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking wheat stalk as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
Embodiment 2
The fertile preparation method of complex ecological: first, taking 35kg toluene-ethanol solution and 70kg granularity is the wheat stalk of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 90 DEG C, filters after processing 1.5h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 15%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 15%, after processing 5h, filter. Then regulating stalk water content is 40% left and right. Add again 6kgS/Fe3O4Type solid super-strong acid, and the 180kg mass fraction propionic acid solution that is 15%, and mix. The temperature to 120 DEG C that raises subsequently, reaction 1h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 10kg, bone meal 10kg, wheat bran 5kg, humic acid 5kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 5h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 35kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking wheat stalk as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
Embodiment 3
The fertile preparation method of complex ecological: first, taking 30kg toluene-ethanol solution and 60kg granularity is the maize straw of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 70 DEG C, filters after processing 2h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 10%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 10%, after processing 4h, filter. Then regulating stalk water content is 40% left and right. Add again 5kgS/ZrO2Type solid super-strong acid, and the 150kg mass fraction succinic acid solution that is 15%, and mix. The temperature to 130 DEG C that raises subsequently, reaction 0.5h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 10kg, bone meal 10kg, wheat bran 10kg, humic acid 10kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 4h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 40kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking maize straw as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
Embodiment 4
The fertile preparation method of complex ecological: first, taking 40kg toluene-ethanol solution and 80kg granularity is the maize straw of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 80 DEG C, filters after processing 1.5h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 15%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 15%, after processing 5h, filter. Then regulating stalk water content is 40% left and right. Add again 7kgS/Fe2O3Type solid super-strong acid, and the 200kg mass fraction acetic acid solution that is 10%, and mix. The temperature to 110 DEG C that raises subsequently, reaction 1.5h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 5kg, bone meal 5kg, wheat bran 5kg, humic acid 5kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 6h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 45kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking maize straw as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
Embodiment 5
The fertile preparation method of complex ecological: first, taking 35kg toluene-ethanol solution and 70kg granularity is the broomcorn straw of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 80 DEG C, filters after processing 2h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 10%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 10%, after processing 4h, filter. Then regulating stalk water content is 40% left and right. Add again 6kgS/Fe3O4Type solid super-strong acid, and the 180kg mass fraction propionic acid solution that is 10%, and mix. The temperature to 120 DEG C that raises subsequently, reaction 1h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 5kg, bone meal 5kg, wheat bran 10kg, humic acid 10kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 5h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 50kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking broomcorn straw as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
Embodiment 6
The fertile preparation method of complex ecological: first, taking 40kg toluene-ethanol solution and 80kg granularity is the broomcorn straw of 100 order left and right, slightly mixes it is mixed, and adds in 100kg water, and is heated to 90 DEG C, filters after processing 1.5h; Then regulate pH of mixed value to 3.5 ~ 4.0 with the acetic acid solution of mass fraction 15%, then regulate pH of mixed value to 6 ~ 7 with the sodium hydroxide solution of mass fraction 15%, after processing 5h, filter. Then regulating stalk water content is 40% left and right. Add again 7kgS/ZrO2Type solid super-strong acid, and the 200kg mass fraction succinic acid solution that is 10%, and mix. The temperature to 130 DEG C that raises subsequently, reaction 0.5h, makes stalk under catalytic action, occur effectively to degrade. Then by vinasse 5kg, bone meal 5kg, wheat bran 5kg, humic acid 5kg joins in acidifying stalk system, and isolated air, makes its continuing fermentation. After reaction 4h, stop heating, be naturally cooled to 20 ~ 30 DEG C, reclaim solid catalyst and small molecular organic acid, add 50kg nitrogen-phosphorus-potassium compound fertilizer. Make thus taking broomcorn straw as main raw material(s) the complex ecological fertilizer that vinasse, bone meal, wheat bran, humic acid are auxiliary material.
In conjunction with specific embodiments, the experimental data obtaining is as shown in the table.
Claims (3)
1. utilize straw to prepare a method for complex ecological fertilizer, it is characterized in that taking solid super-strong acid as catalyst, degrading straw under the effect of small molecular organic acid and obtaining, is divided into following four-stage: dewaxing matter pretreatment stage; High-temperature catalytic degradation period; The composite fermentation stage; Cooling fertilizer conservation and post-processing stages;
Mainly by the material of following weight portion as raw material: 60 ~ 80 parts of straws, 5 ~ 10 parts, vinasse, 5 ~ 15 parts of bone meal, 5 ~ 15 parts, wheat bran, 5 ~ 10 parts of humic acid, azophoska 30-50 part;
The pretreated concrete operation method of described dewaxing matter is, toluene-ethanol solution is mixed with stalk, is added to the water and is warming up to 70 ~ 90 DEG C, after 1.5 ~ 2h, filters; Regulate pH value to 3.5 ~ 4.0 with acetic acid solution, then regulate pH value to 6 ~ 7 with sodium hydroxide solution, after processing 4 ~ 5h, filter, wherein, the weight ratio of toluene-absolute ethyl alcohol and stalk is 1:2 ~ 1:3;
The concrete operation method of described high-temperature catalytic degraded is, regulating stalk water content is 30 ~ 50%, add solid super-strong acid and small molecular organic acid solution, be heated to 110 ~ 130 DEG C, reaction 0.5 ~ 1.5h, wherein solid super-strong acid consumption is 5 ~ 10% of stalk weight, and small molecular organic acid liquid quality fraction is 10 ~ 15%, weight is stalk 2 ~ 3 times;
The concrete operation method in described composite fermentation stage is vinasse, bone meal, wheat bran and humic acid to be added in acidifying stalk system to isolated air, fermentation 4 ~ 6h;
The concrete operation method of described cooling fertilizer conservation and post-processing stages is, stops heating, naturally is cooled to 20 ~ 30 DEG C, and recovery solid catalyst and small molecular organic acid, mix with azophoska and obtain a kind of complex ecological fertilizer that utilizes straw to prepare.
2. a kind of method of utilizing straw to prepare complex ecological fertilizer according to claim 1, is characterized in that: described straw is common agricultural crop straw, preferably wheat stalk, maize straw, broomcorn straw, and granularity is not more than 120 orders; Described vinasse are for being rich in amino acid, the distiller's wass of sustainable fermentation; Described bone meal is coarse bone powder, and wherein the weight fraction of calcium is 20 ~ 25%, and the weight fraction of phosphorus is 10 ~ 13%; Described wheat bran is the outer epidermis of wheat that is rich in nitrogen, phosphorus, calcium, potassium etc.; Described humic acid is for taking aromatic ring and alicyclic ring as basic structure, and is connected with the organic macromolecule of various functional groups.
3. a kind of method of utilizing complex ecological fertilizer prepared by straw according to claim 1, is characterized in that: described solid super-strong acid is S/Fe2O3Type, S/Fe3O4Type or S/ZrO2Type super acids, small molecular organic acid is acetic acid, propionic acid or succinic acid.
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| CN106116856A (en) * | 2016-06-23 | 2016-11-16 | 安徽格义循环经济产业园有限公司 | A kind of device preparing fertilizer |
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| CN106116857A (en) * | 2016-06-23 | 2016-11-16 | 安徽格义循环经济产业园有限公司 | A kind of method preparing fertilizer |
| CN106396817A (en) * | 2016-12-02 | 2017-02-15 | 内蒙古蒙肥生物科技有限公司 | Method for preparing organic fertilizer based on straw and livestock and poultry manure |
| CN111269064A (en) * | 2018-12-03 | 2020-06-12 | 江苏北斗星环保股份有限公司 | Bio-based organic fertilizer for livestock and poultry died of diseases and preparation method thereof |
| CN111470887A (en) * | 2019-01-22 | 2020-07-31 | 吴东霖 | Method for producing organic fertilizer by rapid reaction of agricultural and forestry waste and plant straw |
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| CN106396817B (en) * | 2016-12-02 | 2021-04-27 | 内蒙古蒙肥生物科技有限公司 | Method for preparing organic fertilizer based on straw and livestock and poultry manure |
| CN111269064A (en) * | 2018-12-03 | 2020-06-12 | 江苏北斗星环保股份有限公司 | Bio-based organic fertilizer for livestock and poultry died of diseases and preparation method thereof |
| CN111470887A (en) * | 2019-01-22 | 2020-07-31 | 吴东霖 | Method for producing organic fertilizer by rapid reaction of agricultural and forestry waste and plant straw |
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Application publication date: 20160525 |