CN113135788B - Production process for preparing organic fertilizer by mixing and fermenting Maotai-flavor distilled spirit vinasse and waste pit mud - Google Patents
Production process for preparing organic fertilizer by mixing and fermenting Maotai-flavor distilled spirit vinasse and waste pit mud Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- 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
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- 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 belongs to the field of agriculture, and relates to a production process for preparing organic fertilizer by mixing and fermenting Maotai-flavor distilled spirit vinasse and waste pit mud. The invention provides an organic fertilizer which is prepared from the following raw materials in parts by weight: 75-90 parts of vinasse, 3-11 parts of pit mud and 5-15 parts of straw. In the method for producing the organic fertilizer from the vinasse, which is disclosed in the prior art, the vinasse is pretreated, functional bacteria are added and the like in production, and then the vinasse can be normally decomposed and fermented. The raw material formula system can ensure that the raw materials are normally decomposed and fermented without pretreatment, functional microbial inoculum and other operations, thereby obtaining the organic fertilizer. Because the organic fertilizer raw material contains the vinasse and the waste pit mud, the treatment difficulty of the solid waste of the vinasse and the waste pit mud in the Maotai-flavor white spirit is solved while the organic fertilizer is obtained. Can solve the problem of the subsequent development of the Maotai-flavor liquor, promote enterprises to realize sustainable development, and have wide application prospect in the Maotai-flavor liquor industry.
Description
Technical Field
The invention belongs to the field of agriculture, and relates to a production process for preparing organic fertilizer by mixing and fermenting Maotai-flavor distilled spirit vinasse and waste pit mud.
Background
Along with the rapid development of the Maotai-flavor liquor brewing industry, the production amount of industrial solid waste is also increased, and the distilled grain is a main byproduct of the Maotai-flavor liquor industry, has the characteristics of strong acidity, high viscosity and the like, so that the waste distilled grain is difficult to recycle, the content of the odorous substances is increased along with the round production and the viscosity is reduced along with the round production due to the raw and auxiliary materials such as chaff, fermented grains and the like mixed in the process of producing the liquor, and finally the waste is formed due to the fact that the waste does not meet the production and use standard, and the waste is the main body of the solid waste generated by the Maotai-flavor liquor industry, so that serious environmental pollution and resource waste are caused by reasonable harmless and recycling treatment are caused, and even the ecological environment of a brewing production area and the living quality of people are influenced.
Chinese patent CN201410338709 discloses a vinasse organic fertilizer and a production method thereof, wherein vinasse, straw, sawn timber face, quicklime and strain are uniformly mixed to form a strip pile for fermentation, the organic fertilizer is produced by means of adjusting pile turning frequency and the like, but normal production can be realized by adding functional microbial agents, and the risk of influencing the microbial flora structure of the environment for brewing Maotai wine is unavoidable in the mode; chinese patent CN110999756a discloses a method for preparing an organic substrate based on brewing waste, in which distillers ' grains are subjected to anaerobic fermentation treatment, distillers ' grains residues and anaerobic digestion liquid are separated, and then raw materials such as distillers ' grains residues are mixed and subjected to aerobic fermentation to prepare an organic fertilizer, however, the patent does not describe the way of treating the anaerobic digestion liquid generated by the method, and there is a risk of becoming a new pollutant. Chinese patent CN200810212722 discloses a recycling method of pit sealing mud, and the pit sealing mud is recycled to a certain extent through a spacer paved between the pit sealing mud and the surface grains, however, the recycling of the pit sealing mud does not well solve the problems of viscosity and sealing performance reduction of the pit sealing mud after long-term use, and the problem of treatment after pit sealing mud waste is not fundamentally solved. The method for producing the organic fertilizer by using the vinasse disclosed by the prior art can normally decompose and ferment after operations such as pretreatment, functional microbial inoculum addition and the like are carried out on the vinasse in production, and no process or technical scheme for producing the organic fertilizer by simultaneously treating two solid wastes of the vinasse and waste pit mud in batches exists at present.
Disclosure of Invention
In some embodiments, the invention provides an organic fertilizer prepared based on raw materials comprising the following parts by weight: 75-90 parts of vinasse, 3-11 parts of pit mud and 5-15 parts of straw.
In some embodiments, the organic fertilizer is prepared based on raw materials comprising the following parts by weight: 75-88 parts of vinasse, 5-11 parts of pit mud and 5-10 parts of straw.
In some embodiments, based on raw materials comprising the following parts by weight: 78-85 parts of vinasse, 5-10 parts of pit mud and 5-9 parts of straw.
In some embodiments, the feedstock further comprises minerals.
In some embodiments, the mineral is in powder form.
In some embodiments, the mineral is a mineral powder formed by calcination of natural ore.
In some embodiments, the mineral is present in an amount of 3 to 10 parts by weight.
In some embodiments, the mineral is present in an amount of 4 to 8 parts by weight.
In some embodiments, the mineral is present in an amount of 4 to 6 parts by weight.
In some embodiments, the distillers grains are fresh distillers grains.
In some embodiments, the fresh distillers grains initial moisture is 50-60%.
In some embodiments, the fresh distillers grains have a pH of 3-5.
In some embodiments, the pit mud is waste pit mud.
In some embodiments, the straw is waste straw.
In the method for producing the organic fertilizer from the vinasse, which is disclosed in the prior art, the vinasse is pretreated, functional bacteria are added and the like in production, and then the vinasse can be normally decomposed and fermented. The inventor researches and discovers that the raw materials can be normally decomposed and fermented without pretreatment, functional bacteria and other operations by utilizing the raw material formula system, so that the organic fertilizer is obtained. Because the organic fertilizer raw material contains the vinasse and the waste pit mud, the treatment difficulty of the vinasse and the waste pit mud solid waste is solved while the organic fertilizer is obtained. The risk of damage to microbial flora of brewing enterprises is reduced and the production cost is reduced because no functional microbial agent is required to be added; in addition, the production cost is reduced without pretreatment.
In some embodiments, the organic fertilizer production process of mixed fermentation of the Maotai-flavor distilled spirit vinasse and waste pit mud from the production of the wine can produce the organic fertilizer in a natural state without adding functional strains and any chemical materials, can more scientifically, more effectively and furthest recycle, harmlessly and quantitatively utilize main solid wastes after the production of the Maotai-flavor distilled spirit, can solve the problem of the development of the Maotai-flavor distilled spirit, promotes enterprises to realize sustainable development, and has wide application prospects in the Maotai-flavor distilled spirit industry. In some embodiments, the present invention provides a method for producing an organic fertilizer, comprising the steps of: (1) uniformly mixing the raw materials: the raw materials comprise 75-90 parts of vinasse, 3-11 parts of pit mud and 5-15 parts of straw; and (2) feeding: and (3) transferring the raw materials in the step (1) to a fermentation area, and carrying out composting fermentation to obtain the organic fertilizer.
In some embodiments, the feedstock further comprises minerals.
In some embodiments, the mineral is in powder form.
In some embodiments, the mineral is a mineral powder formed by calcination of natural ore.
In some embodiments, the mineral is present in an amount of 3 to 10 parts by weight.
In some embodiments, the mineral is present in an amount of 4 to 8 parts by weight.
In some embodiments, the mineral is present in an amount of 4 to 6 parts by weight.
In some embodiments, the distillers grains are fresh distillers grains.
In some embodiments, the fresh distillers grains initial moisture is 50-60%.
In some embodiments, the fresh distillers grains have a pH of 3-5.
In some embodiments, the pit mud is waste pit mud.
In some embodiments, the straw is waste straw.
In some embodiments, the method comprises producing by means of turndown, continuous feeding, fermentation in a fermentation tank.
In some embodiments, the step (2) further comprises composting further.
In some embodiments, the composting further comprises granulating, sieving, and packaging.
In some embodiments, the composting fermentation comprises the steps of: (1) first fermentation: starting to rise from the composting temperature, fermenting at 15-45 ℃ in a medium-temperature stage, fermenting at more than 45 ℃ in a high-temperature stage, and starting to fall after reaching 65-70 ℃; (2) second fermentation: and (3) conveying the fermented vinasse after the first fermentation composting to a post fermentation chamber for decomposition treatment, and stabilizing the composting temperature at 35-45 ℃ to achieve the decomposition.
In some embodiments, the medium temperature stage has a fermentation time of 3 to 5 days.
In some embodiments, the fermentation time for the high temperature stage is 10 to 15 days.
In some embodiments, the high temperature stage temperature is 45 ℃ to 65 ℃.
In some embodiments, the high temperature stage is above 55 ℃ for a temperature duration of 7d or more.
In some embodiments, agitation flip or forced ventilation is performed when the temperature rises above 65 ℃ during the high temperature stage.
In some embodiments, the first fermentation time is 13 to 20 days.
In some embodiments, the period of the second fermentation is 25-30 days.
In some embodiments, the ventilation is the supply of oxygen using mechanical forced ventilation.
In some embodiments, the pile height during composting fermentation is 1-3 m.
In some embodiments, the ventilation volume is 0.15-0.45 m per cubic meter of material 3 And/min, the wind pressure can be increased by 1000-1500 Pa according to the increment of each 1m of the pile layer.
In some embodiments, the first fermentation is performed in winter and spring for two seasons, with stirring once for 2-3 days.
In some embodiments, the stirring is performed once a day in summer and autumn.
In some embodiments, the invention provides organic fertilizer produced by the method.
In some embodiments, the invention provides the use of the organic fertilizer for promoting plant growth.
In some embodiments, the organic fertilizer is capable of promoting germination of seeds.
In some embodiments, the plant comprises sorghum, wheat, and chinese cabbage.
Drawings
FIG. 1 comparison of organic fertilizer nutrient produced by different technologies
FIG. 2 comparison of fermentation periods for different processes for producing organic fertilizers
FIG. 3 comparison of organic matter content of organic fertilizer produced by different technologies
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples, which do not represent limitations on the scope of the present invention. Some insubstantial modifications and adaptations of the invention based on the inventive concept by others remain within the scope of the invention.
Herein, the waste pit mud is formed by crushing pit mud which cannot be continuously used for wine production after the wine production is finished, and the crushing degree is preferably 4-10 meshes.
Here, the waste rice straw is formed by crushing rice straw which cannot be continuously used after the starter propagation production is finished, and the crushing fineness is preferably 0.5-2.0 cm.
The "minerals" are derived from Yunnan Shannon development group Co. The method adopts a blast furnace method to convert the selected raw materials such as phosphate ore, serpentine, silica, dolomite and the like into mineral powder which contains effective phosphorus, silicon, magnesium and calcium which can be easily absorbed by plants and a plurality of nutrient elements beneficial to the plants through a high-temperature melting and water quenching mode at 1400-1800 ℃ of the blast furnace, and the mineral powder is subjected to organic authentication.
Wherein, the ventilation fermentation refers to that when the temperature is increased to more than 65 ℃ in the high-temperature stage of the primary fermentation and mechanical forced ventilation is needed, the ventilation rate is 0.15-0.45 m per cubic meter of material 3 And/min, the wind pressure can be increased by 1000-1500 Pa according to the increment of each 1m of the pile layer.
Example 1 preparation raw materials and production method of organic fertilizer
The preparation method comprises the following steps: 81 parts of fresh vinasse, 10 parts of waste pit mud, 5 parts of waste straw and 4 parts of mineral substances; wherein, the initial moisture of the fresh vinasse is 55 percent, and the pH value is 3.5.
The preparation method comprises the following steps: (1) Uniformly mixing the raw materials, and composting in a turning and continuous feeding mode, wherein the composting height is 1.4m; (2) first fermentation: in the composting heating stage, the fermentation temperature is controlled at 15-45 ℃ in the medium-temperature stage, the fermentation temperature is controlled at more than 45 ℃ in the high-temperature stage, wherein the temperature above 55 ℃ is continuously 7d, the temperature reaches about 65-70 ℃ at the top, the temperature starts to drop, the temperature is raised to more than 65 ℃, the forced stirring is carried out once a day, and the total fermentation time is 20 days; (3) second fermentation: conveying the materials obtained after primary fermentation to a post fermentation chamber for secondary fermentation, wherein when the fermentation time reaches 30 days, the composting temperature is stabilized at about 40 ℃, the water content is 30%, and the pH value is 5.5, so that the composting standard is reached; (4) The organic fertilizer is detected, wherein the organic matter content reaches 65 percent, and the total nutrient (N+P) 2 O 5 +K 2 O) content 9.5%, the related index accords with the national standard (NY 525-2012); the germination index of the cabbage seeds is 85% by adopting the relative germination test of the seeds; (5) Removing impurities from the materials subjected to the process treatment, crushing, granulating, sieving and packaging to obtain finished products.
Example 2 preparation raw materials and production method of organic fertilizer
The preparation method comprises the following steps: 80 parts of fresh vinasse, 10 parts of waste pit mud, 5 parts of waste straw and 5 parts of mineral substances; wherein, the initial moisture of the fresh vinasse is 55 percent, and the pH value is 4.0.
The preparation method comprises the following steps: (1) Uniformly mixing the raw materials and the auxiliary materials, and composting in a turning and throwing manner in a continuous feeding manner, wherein the composting height is 1.7m; (2) first fermentation: in the composting heating stage, the medium temperature levelThe temperature of the section fermentation is controlled to be 15-45 ℃, the high temperature is controlled to be more than 45 ℃, wherein the temperature of more than 55 ℃ is continuously 7d, and the temperature reaches the top temperature of 65-70 ℃ to start to drop; when the temperature is raised to above 65 ℃, the mixture is forcedly stirred once a day, and the total fermentation time is 19 days; (3) second fermentation: conveying the materials obtained after primary fermentation to a post fermentation chamber for secondary fermentation, wherein when the fermentation time reaches 26 days, the composting temperature is stabilized at about 40 ℃, the water content is 25%, and the pH value is 6.0, so that the composting standard is reached; (4) The organic fertilizer is detected, wherein the content of organic matters reaches 68 percent, and the total nutrient (N+P) 2 O 5 +K 2 O) content 11.2%, the related index accords with the national standard (NY 525-2012); the germination index of the wheat seeds is 90% by adopting the relative germination test of the seeds; (5) Removing impurities from the materials subjected to the process treatment, crushing, granulating, sieving and packaging to obtain finished products.
Example 3 preparation raw materials and production method of organic fertilizer
The preparation method comprises the following steps: 85 parts of fresh vinasse, 6 parts of waste pit mud, 5 parts of waste straw and 4 parts of mineral substances; wherein, the initial moisture of the fresh vinasse is 58 percent, and the pH value is 4.5.
The preparation method comprises the following steps: (1) Uniformly mixing raw materials and auxiliary materials, composting in a turning and continuous feeding mode, and carrying out ventilation fermentation on the bottom during the composting process, wherein the composting height is 1.1m; (2) first fermentation: in the composting temperature rising stage, the medium temperature stage is controlled at 15-45 ℃, the high temperature stage is controlled at more than 45 ℃, wherein the temperature of more than 55 ℃ is continuously 9d, and the top temperature is 65-70 ℃ and begins to drop; when the temperature is raised to above 65 ℃, the mixture is forcedly stirred once a day, and the total fermentation time is 17 days;
(3) Primary fermentation: conveying the materials after primary fermentation to a post fermentation chamber for secondary fermentation, wherein when the fermentation time reaches 20 days, the composting temperature is stabilized at about 40 ℃, the water content is 20%, and the pH value is 6.5, so that the composting standard is reached;
(4) The organic fertilizer is detected, wherein the content of organic matters reaches 70 percent, and the total nutrient (N+P) 2 O 5 +K 2 O) content
10.0%, and the related index accords with the national standard (NY 525-2012); the germination index of sorghum seeds is 85% by adopting the relative germination test of seeds; (5) Removing impurities from the materials subjected to the process treatment, crushing, granulating, sieving and packaging to obtain finished products.
Comparative example 1
1. The soy sauce flavor type white spirit vinasse and pit mud prepared in the embodiment 2 of the invention are mixed and fermented to prepare an organic fertilizer, which is defined as CK; the organic fertilizer prepared from the following raw materials is defined as T: 80 parts of fresh vinasse, 10 parts of waste pit mud and 5 parts of waste straw (wherein the initial moisture of the fresh vinasse is 55% and the pH value is 4.0). The two are made of the same raw materials and scale, composting is carried out by adopting a continuous feeding fermentation tank mode, bottom ventilation fermentation is carried out when the temperature is raised to above 65 ℃, and the total nutrient, total nitrogen, total phosphorus and total potassium content of the compost are compared after the composting is finished.
As shown in figure 1, under the condition of keeping other conditions unchanged, the invention can still obtain the organic fertilizer with fertilizer efficiency (total nutrient is more than or equal to 5%) without adding minerals, and after adding minerals (total phosphorus), the invention can further promote the increase of other nutrients in the production process of the organic fertilizer.
Comparative example 2
1. The organic fertilizer prepared in example 3 of the present invention was defined as treatment CK2, and the organic fertilizer prepared from the following raw materials was defined as T2: 71 parts of fresh vinasse, 15 parts of waste pit mud, 10 parts of waste straw and 4 parts of mineral substances (wherein the initial moisture of the fresh vinasse is 55% and the pH value is 3.5). The two are made of the same raw materials and the same scale, composting is carried out by adopting a continuous feeding fermentation tank mode, and bottom ventilation fermentation is carried out when the temperature is raised to more than 65 ℃.
2. Test results for comparison of treatment CK2 and treatment T2:
2.1 fermentation period
As can be seen from FIG. 2, the 4d composting of CK2 can reach 55 ℃ and last for 9d above 55 ℃, the harmless standard of the composting can be reached, and the end of primary fermentation is 17d; the temperature rise of the treatment T2 is slow, the temperature reaches more than 55 ℃ for 9 days at the 6 th day, then the temperature starts to drop, and the fermentation is finished for 20 days; the results show that the fermentation period is relatively prolonged although the temperature requirement of primary fermentation of the organic fertilizer can be met by changing the raw material components.
2.2 organic matter
As can be seen from fig. 3, after the primary fermentation is finished, CK2 and T2 are treated, and after secondary fermentation is performed, the organic matter content of CK2 is detected to be significantly higher than T2, and although the organic matter content of the batch T2 meets the NY525-2012 standard (the organic matter content is not less than 45%), the organic matter content of the final produced organic fertilizer may not reach the standard in consideration of factors such as errors existing between batches.
The results show that the content of the raw material components of the invention must be within a certain range, and beyond the protection range of the invention, the production period is prolonged, and the organic matter content cannot reach the standard.
Any combination of the above optional solutions may be adopted to form an optional embodiment of the present invention, which is not described herein.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (26)
1. The production method of the organic fertilizer is characterized by comprising the following steps of:
(1) Uniformly mixing the raw materials: the raw materials comprise 78-85 parts of vinasse, 5-10 parts of pit mud, 5-9 parts of straw and 4-6 parts of mineral substances in parts by weight;
(2) Feeding: transferring the raw materials in the step (1) to a fermentation area, and carrying out composting fermentation to obtain the organic fertilizer;
the mineral substances are as follows: the raw materials of the selected phosphate ore, serpentine, silica, dolomite and the like are converted into the mineral powder by a high-temperature melting and water quenching mode of a blast furnace at 1400-1800 ℃ and contain effective phosphorus, silicon, magnesium and calcium which can be easily absorbed by plants and a plurality of nutrient elements beneficial to the plants.
2. The method of claim 1, wherein the distillers grains are fresh distillers grains.
3. The method of claim 2, wherein the initial moisture of the fresh distillers grains is 50-60%.
4. The method of claim 2, wherein the fresh distillers grains have a pH of 3-5.
5. The method of claim 1 wherein the pit mud is waste pit mud.
6. The method of claim 1, wherein the straw is waste straw.
7. The method of claim 1, wherein the method comprises performing the production by means of turndown, continuous feeding, and fermentation in a fermentation tank.
8. The method of claim 1, wherein said step (2) is followed by further composting.
9. The method of claim 8, wherein said composting further comprises granulating, sieving, and packaging.
10. The method of claim 1, wherein the composting fermentation comprises the steps of: (1) first fermentation: starting to rise from the composting temperature, fermenting at 15-45 ℃ in a medium-temperature stage, fermenting at more than 45 ℃ in a high-temperature stage, and starting to fall after reaching 65-70 ℃;
(2) And (3) secondary fermentation: and (3) conveying the fermented vinasse after the first fermentation composting to a post fermentation chamber for decomposition treatment, and stabilizing the composting temperature at 35-45 ℃ to achieve the decomposition.
11. The method of claim 10, wherein the medium temperature stage fermentation time is 3 to 5 days.
12. The method of claim 10, wherein the fermentation time at the high temperature stage is 10 to 15 days.
13. The production process according to claim 10, wherein the temperature of the high temperature stage is 45 ℃ to 65 ℃.
14. The method of claim 10, wherein the high temperature stage comprises a temperature above 55 ℃ for a duration of 7d or more.
15. The method according to claim 10, wherein stirring, turning or forced ventilation is performed when the temperature in the high temperature stage is raised to 65 ℃ or higher.
16. The method of claim 10, wherein the first fermentation is performed for a period of 13 to 20 days.
17. The method of claim 10, wherein the second fermentation is performed for a period of 25 to 30 days.
18. The method of claim 15, wherein the ventilation is by supplying oxygen using mechanical forced ventilation.
19. The method according to claim 1, wherein the pile height during the composting fermentation is 1-3 m.
20. The production method according to claim 15, wherein the ventilation volume is 0.15-0.45 m per cubic meter of material 3 The wind pressure can be increased by 1000-1500 Pa according to the increment of each 1m of the pile layer per minute.
21. The method of claim 10, wherein the stirring is performed for two seasons of winter and spring and for 2 to 3 days in the first fermentation.
22. The method of claim 10, wherein in the first fermentation, the stirring is performed for two seasons, i.e., 1 day.
23. An organic fertilizer produced by the production process of any one of claims 1-22.
24. Use of the organic fertilizer of claim 23 to promote plant growth.
25. The use of claim 24, wherein the organic fertilizer is capable of promoting germination of seeds.
26. The use according to claim 24, wherein said plants comprise sorghum, wheat and chinese cabbage.
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| CN115028468B (en) * | 2022-05-27 | 2023-06-16 | 贵州茅台酒股份有限公司 | Ceramsite based on waste pit mud and preparation method thereof |
| CN115215703A (en) * | 2022-07-28 | 2022-10-21 | 无锡国联环保科技股份有限公司 | Soil conditioner based on dried sludge and preparation method thereof |
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| CN1282719A (en) * | 1999-07-28 | 2001-02-07 | 四川沱牌曲酒股份有限公司 | Bioactive organic fertilizer |
| BRPI1100645B1 (en) * | 2011-01-18 | 2014-03-11 | Biomassa Com De Racoes En E Adubos Ltda | Process of transformation of vinasse into organo-mineral fertilizer |
| CN110540462A (en) * | 2019-09-12 | 2019-12-06 | 贵州卓豪农业科技股份有限公司 | organic fertilizer binder based on brewing wastes and preparation method thereof |
| CN110999756A (en) * | 2019-10-25 | 2020-04-14 | 中国农业科学院农业环境与可持续发展研究所 | Preparation method of organic matrix based on brewing waste |
| CN111153726A (en) * | 2020-01-20 | 2020-05-15 | 北京晟启环能科技有限公司 | Pit mud impurity removal and drying process method and system |
| CN111574254A (en) * | 2020-04-17 | 2020-08-25 | 贵州茅台酒股份有限公司 | Production process for fermenting organic fertilizer by utilizing Maotai-flavor liquor vinasse |
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