Method for preparing organic fertilizer through continuous and rapid fermentation of furfural residues

Abstract

The invention belongs to a method for preparing an organic fertilizer through continuous and rapid fermentation of furfural residues. The preparation method comprises the following steps: adjusting the pH value of furfural residues, and adding a fermentation detonating agent and a microbial agent into the furfural residues after the pH value is adjusted; uniformly mixing the materials to form a fermented material pile for fermentation; when the temperature of the fermentation material pile is higher than 60 DEG C, adding a new material into the fermentation material pile and mixing with the fermentation material pile to form a master batch; when the temperature of the master batch is higher than 60 DEG C, the sub-materials are moved out of the master batch pile, new materials are added into the master batch pile after the sub-materials are moved out, and the sub-materials are the first batch of sub-materials; when the temperature of the master batch is larger than 60 DEG C again, the sub-materials are moved out of the master batch pile, new materials are added into the master batch pile after the sub-materials are moved out, and the sub-materials are two batches of sub-materials; the fermentation completion time of the first batch of sub-materials is 8-10 days after the fermentation of the fermentation material pile, and the fermentation completion time of the second batch of sub-materials is 8-10 days after the new materials are added for the first time; the device has the advantages that the furfural residues can be continuously fed, and the organic fertilizer is continuously produced.

Description

Technical Field

[0001] The invention belongs to the technical field of furfural residue utilization, and particularly relates to a method for preparing organic fertilizer by continuous and rapid fermentation of furfural residue. Background Art

[0002] Composting refers to the biochemical process of using widely existing microorganisms in nature to controllably promote the conversion of degradable organic matter in solid waste into stable humus. Composting is a process of producing organic fertilizers. It contains relatively rich nutrients, and the fertilizer effect is long and stable. At the same time, it is conducive to promoting the formation of soil solid particle structure, which can increase the soil's ability to retain water, heat, air and fertilizer. Moreover, when mixed with chemical fertilizers, it can make up for the defects of single nutrients contained in chemical fertilizers, long-term single use of chemical fertilizers, soil compaction, and reduced water and fertilizer retention. According to the method of biological fermentation, it can be divided into aerobic composting and anaerobic composting. Aerobic composting is the process of aerobic bacteria absorbing, oxidizing and decomposing waste under good ventilation conditions and sufficient oxygen. Aerobic microorganisms oxidize part of the absorbed macromolecular organic matter into small molecular organic matter through their own life activities, and release energy required for microbial growth activities, while the other part of the organic matter is synthesized into new cytoplasm, so that the microorganisms continue to grow and reproduce, and produce more organisms.

[0003] Furfural residue is a waste generated during the production of furfural. It is characterized by a high carbon-nitrogen ratio and strong acidity. A certain amount of furfural, sulfuric acid and acid catalyst remain. These residues will affect microbial fermentation, resulting in a long fermentation time of the furfural residue, generally more than 30 days. Furthermore, the heating process of the furfural residue is relatively slow. It usually takes more than 10 days to keep it in the heating stage (when the proportion of furfural residue is about 30%). When the amount of furfural residue is too large, it takes even longer. Therefore, the slow fermentation speed has become an obstacle for the fermentation of furfural residue into organic fertilizer, resulting in a large amount of furfural residue being unable to be reused. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues.

[0005] The object of the present invention is achieved in that:

[0006] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, characterized in that the preparation method comprises the following steps:

[0007] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0008] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0009] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0010] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0011] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0012] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0013] Step 7: Repeat step 6 above;

[0014] The fermentation detonator in the above steps is selected from one or more of horse manure stored for one week, sheep manure stored for one week, and furfural residue fermented at a temperature of 40-60° C.;

[0015] The fermentation of the first batch of sub-materials is completed 8 to 10 days after step 1, and the fermentation of the second batch of sub-materials is completed 8 to 10 days after the first addition of new materials in step 4;

[0016] The new material in step 4, step 5 and step 6 refers to the material obtained by adjusting the pH value of furfural residue, adding fermentation detonator and bacterial agent, mixing evenly and having a water content of 55-60%.

[0017] The beneficial effects of the present invention are as follows: the pH value of the furfural residue is adjusted to an acidity and alkalinity suitable for the growth of microorganisms by alkaline materials, so as to achieve rapid growth and reproduction of the microorganisms and complete fermentation; further, the present invention uses a fermentation detonator to achieve rapid heating of the furfural residue, wherein the fermentation detonator such as horse manure and sheep manure is hot manure that has been placed for more than one week, has strong fertility, is rich in fermentation microorganisms, can be quickly decomposed, and releases a large amount of heat during the decomposition process, so as to achieve the purpose of rapid growth and reproduction of the microorganisms and complete fermentation; and the furfural residue with a fermentation temperature of 40 to 60°C can achieve the characteristic of rapidly heating the entire fermentation pile, thereby satisfying the microorganisms. The needs of rapid growth and reproduction of plants; further, furfural residue has the characteristics of good air permeability. When fermented under conditions of sufficient oxygen, the pores can increase the oxygen transmission efficiency, and combined with the fermentation detonator, the fermentation efficiency can be improved and the fermentation time can be shortened; the present invention adopts the master batch pile as the basis. When the material temperature is greater than 60°C, new materials are added to mix with it. The mixing process can achieve cooling. Secondly, the master batch pile can also be cooled during the addition of new materials. Finally, the new materials added can accelerate the decomposition process under the action of the master batch pile. At the same time, the sub-material is removed for continuous fermentation to achieve the purpose of continuous and rapid fermentation.

[0018] Preferably, the alkaline material is one or more of calcium magnesium phosphate, lime, and magnesium oxide.

[0019] Preferably, the pH value of the furfural residue after adjusting the pH value in step 1 is 6-8.

[0020] Preferably, the mass of the furfural residue is 70-92% of the mass of the fermentation pile.

[0021] Preferably, the mass of the fermentation detonator is 5-20% of the mass of the fermentation pile.

[0022] Preferably, the bacterial agent is selected from one or more of Bacillus, Trichoderma, yeast, actinomycetes or Aspergillus niger.

[0023] Preferably, the mass of the bacterial agent is 0.1% to 1% of the mass of the fermentation pile.

[0024] Preferably, the amount of new material added is 20-33% of the mass fraction of the fermentation material pile.

[0025] Preferably, the sub-materials in step 5 and step 6 are respectively formed into sub-material piles, and when the material temperature of the sub-material pile is greater than 60° C., the piles are turned.

[0026] The advantages of the present invention are as follows:

[0027] 1. The present invention adopts a technical solution of continuous and rapid fermentation of furfural residues, which can realize rapid fermentation of furfural residues and prepare them into organic fertilizers, so as to achieve the characteristic of turning waste into treasure; it has the advantages of being able to realize continuous input of furfural residues and continuously produce organic fertilizers; since furfural residues are used, no additional nitrogen source is required, and fermentation is carried out under high carbon-nitrogen ratio conditions, the whole process of composting fermentation is odorless, and it is safe and environmentally friendly.

[0028] 2. The present invention uses a fermentation detonator in the preparation method, which has the function of rapidly heating up the fermentation pile, thereby achieving rapid growth and reproduction of microorganisms and completing the fermentation. At the same time, when the fermentation detonator contains horse manure and / or sheep manure, an organic carrier containing microorganisms is introduced to promote rapid fermentation of furfural residues. When it contains furfural residues, the proportion of processed furfural residues can be increased, and the mass of furfural residues can be up to 97.5% of the mass of the fermentation pile at the highest. Based on this, the present invention is suitable for the treatment of furfural residues, especially for enterprises producing furfural.

[0029] 3. Compared with the traditional compost turning, the process of adding new materials in the present invention has a relatively low temperature of the new materials, and the copper stick can mix the new materials evenly and the addition of the new materials can achieve a rapid drop in the material temperature, so as to achieve the purpose of rapid growth and reproduction of microorganisms and complete fermentation; at the same time, the new materials can accelerate the decomposition process under the action of the mother material pile, further laying the foundation for achieving continuous fermentation and rapid and continuous output of organic fertilizer.

[0030] 4. In the present invention, the sub-material is removed from the mother material pile, which lays a foundation for the subsequent output of organic fertilizer, and also has the function of turning the pile to cool the sub-material pile, so as to achieve the purpose of rapid growth and reproduction of microorganisms and complete fermentation.

[0031] 5. The alkaline material of the present invention can adjust the pH value of furfural residue. By using lime, the furfural residue can be adjusted to a suitable range under the premise of using a small amount of alkaline material, thereby improving the mass ratio of furfural residue and improving the processing capacity of furfural residue. When calcium magnesium phosphate fertilizer and / or magnesium oxide are used, not only the pH value of furfural residue can be adjusted, but also the purpose of supplementing trace elements in organic fertilizer can be achieved.

[0032] 6. The present invention takes the mother material pile as the basis, removes the sub-material and adds new material to achieve the purpose of continuous production and rapid fermentation. The above process can not only improve the decomposition process, but also turn the fermented materials over, thereby achieving the purpose of continuously consuming furfural residues and producing organic fertilizers. At the same time, the present invention can overcome the defects of the slow heating and long fermentation time of furfural residues, realize the composting fermentation of furfural residues with a high addition ratio, and complete the fermentation in 8 to 10 days. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention discloses a method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, and the preparation method comprises the following steps:

[0035] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0036] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0037] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0038] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0039] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0040] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0041] Step 7: Repeat step 6 above;

[0042] The fermentation detonator in the above steps is selected from one or more of horse manure that has been stored for one week, sheep manure that has been stored for one week, and furfural residue fermented at a temperature of 40 to 60 degrees Celsius;

[0043] The fermentation of the first batch of sub-materials is completed 8 to 10 days after step 1, and the fermentation of the second batch of sub-materials is completed 8 to 10 days after the first addition of new materials in step 4;

[0044] The new material in step 4, step 5 and step 6 refers to the material obtained by adjusting the pH value of furfural residue, adding fermentation detonator and bacterial agent, mixing evenly and having a water content of 55-60%.

[0045] The invention is suitable for processing furfural residue and fermenting it into organic fertilizer. Since the invention has the characteristics of large processing capacity and fast processing speed for furfural residue and can continuously produce organic fertilizer, the invention is particularly suitable for furfural production enterprises, thereby ensuring that the invention can produce continuously and stably; the invention can realize rapid fermentation under the premise of high proportion of furfural residue; at the same time, it can also realize the characteristics of continuously adding new materials and producing sub-materials based on the mother material pile, laying a foundation for continuously using furfural residue to produce organic fertilizer; the invention can realize rapid heating of high proportion furfural residue by fermentation detonator, and can also realize the characteristics of high proportion furfural residue (having good air permeability) under the premise of high proportion furfural residue Characteristics: fermentation under conditions of sufficient oxygen, pores can increase the transmission efficiency of oxygen) and rapid fermentation is achieved under the cooperation of alkaline materials and bacterial agents; the fermentation detonator in the present invention is selected from one or more of horse manure placed for a week, sheep manure placed for a week, and furfural residue fermented at a temperature of 40-60 degrees Celsius; when the fermentation detonator contains horse manure and / or sheep manure, an organic carrier containing microorganisms is introduced to promote the rapid fermentation of furfural residue; when it contains furfural residue, it can increase the proportion of processed furfural residue, and the mass of furfural residue can be 97.5% of the mass of the fermentation pile at the highest. Based on this, the present invention is suitable for the treatment of furfural residue, especially for enterprises producing furfural. In the present invention, the process of removing sub-materials from the mother material pile can achieve the cooling of the mother material pile and the sub-materials, and the process of adding new materials and mixing them evenly can quickly cool the materials and accelerate the process of maturation.

[0046] Furthermore, the alkaline material is one or more of calcium magnesium phosphate, lime, and magnesium oxide. The alkaline material in the present invention preferably uses one or more of calcium magnesium phosphate, lime, and magnesium oxide, the essence of which is to adjust the pH value of furfural slag. On this basis, it is more preferred to use materials with higher alkalinity to achieve the purpose of increasing the amount of furfural slag added, thereby achieving the advantage of improving the furfural slag processing capacity; the calcium magnesium phosphate and magnesium oxide added in the present invention can adjust the pH value of furfural slag while also supplementing trace elements for organic fertilizer.

[0047] Furthermore, the pH value of the furfural residue after adjusting the pH value in step 1 is 6 to 8. The above setting enables the bacterial agent to multiply rapidly within a suitable pH value threshold range.

[0048] Furthermore, the mass of the furfural residue is 70-92% of the mass of the fermentation pile. One of the purposes of the present invention is to increase the proportion of furfural residue in the fermentation process, so that the furfural residue can be fermented quickly at a high proportion; when the proportion of furfural residue exceeds 70%, it takes about 25 days for the conventional furfural residue to enter the temperature rise stage; while the furfural residue content in the present invention is at least 70%, and can even be increased to 92% (it should be noted that the furfural residue in the fermentation detonator is included in the mass percentage)

[0049] Furthermore, the mass of the fermentation detonator is 5-20% of the mass of the fermentation pile.

[0050] Furthermore, the bacterial agent is selected from one or more of Bacillus, Trichoderma, yeast, actinomycetes or Aspergillus niger.

[0051] Furthermore, the mass of the bacterial agent is 0.1% to 1% of the mass of the fermentation pile.

[0052] Furthermore, the amount of new material added is 20-33% of the mass fraction of the fermentation pile. The amount of new material added in the present invention is based on the mass of the fermentation pile, and the amount of new material added is equal to the amount of sub-material removed and the output of organic fertilizer.

[0053] Furthermore, the sub-materials in step 5 and step 6 are respectively formed into sub-material piles, and when the material temperature of the sub-material pile is greater than 60° C., the piles are turned.

[0054] The invention discloses a method for continuously and rapidly fermenting furfural residue and realizing continuous production of organic fertilizer, wherein a fermentation detonator can overcome the defect of slow heating speed of furfural residue itself and realize the purpose of rapid fermentation, especially horse manure and sheep manure can promote rapid fermentation of furfural residue by introducing microorganism-containing organic carriers while rapidly raising the temperature of fermented materials; in the invention, the first addition of new materials can realize cooling of the fermentation pile, and the added new materials can accelerate the decomposition process under the action of the master batch pile; and a master batch capable of continuously feeding and continuously producing sub-materials is formed, and the invention is based on the master batch, and when the material temperature is greater than 60 DEG C, new materials are added on the basis of removing the sub-materials; the sub-materials are fermented normally, and when the material temperature of the sub-materials is greater than 60 DEG C, the materials are turned over; each time the material temperature of the master batch is greater than 60 DEG C, the sub-materials are first removed and then the new materials are added; the first batch of sub-materials can be fermented in 8-10 days based on the time when the fermentation pile is fermented; the subsequent sub-materials can be fermented in 8-10 days based on the time when the new materials are added in the upper interval. At the same time, the present invention can also realize rapid fermentation under the premise that the mass of furfural residue in the fermentation material pile is not less than 70%, so as to realize the purpose of rapid treatment of a large amount of furfural residue. Based on this, the present invention is particularly suitable for use by furfural production enterprises. Further, in the traditional technology, composting fermentation needs to be carried out under the appropriate carbon-nitrogen ratio. The appropriate carbon-nitrogen ratio of microbial fermentation is 25-30:1, while the carbon-nitrogen ratio of furfural residue is greater than 100:1. Based on this, when the furfural residue is fermented, it is necessary to supplement nitrogen sources, such as urea, ammonium chloride, and nitrogen-containing fertilizers, or organic materials with high nitrogen content. Supplementing nitrogen sources generally produces odors, such as ammonia volatilization and hydrogen sulfide gas. The present invention can make the furfural residue skip the heating stage directly during the fermentation process through the combination of fermentation detonators and the selection of bacterial agents, so that the material temperature of the fermented material enters the high temperature stage (40-55°C). The above high temperature stage can make the selected bacterial agents quickly multiply and ferment, thereby achieving the purpose of rapid fermentation without supplementing nitrogen sources. The above method can achieve rapid fermentation while reducing costs, having no odor in the whole fermentation process, and being safe and environmentally friendly.

[0055] In order to explain the present invention in more detail, the present invention is further described in conjunction with embodiments. The specific embodiments are as follows:

[0056] Example 1

[0057] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, the preparation method comprising the following steps:

[0058] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0059] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0060] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0061] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0062] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0063] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0064] Step 7: Repeat step 6 above;

[0065] The fermentation detonator in the above steps is horse manure that has been placed for a week; the fermentation of the first batch of sub-materials is completed 8 days after step 1, and the fermentation of the second batch of sub-materials is completed 8 days after the first addition of new materials in step 4; the new materials in steps 4, 5 and 6 refer to furfural residues that have their pH adjusted, and are mixed evenly after adding fermentation detonators and bacterial agents, and have a water content of 55-60%.

[0066] The alkaline material is lime. The pH value of the furfural residue after adjusting the pH value in step 1 is 6-8. The mass of the furfural residue is 70% of the mass of the fermentation pile. The mass of the fermentation detonator is 20% of the mass of the fermentation pile. The bacterial agent is Bacillus. The mass of the bacterial agent is 1% of the mass of the fermentation pile. The amount of new material added is 20% of the mass fraction of the fermentation pile. The sub-materials in steps 5 and 6 form sub-material piles respectively, and when the material temperature of the sub-material pile is greater than 60°C, the pile is turned.

[0067] Example 2

[0068] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, the preparation method comprising the following steps:

[0069] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0070] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0071] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0072] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0073] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0074] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0075] Step 7: Repeat step 6 above;

[0076] The fermentation detonator in the above steps is sheep manure that has been placed for one week; the fermentation completion time of the first batch of sub-materials is 10 days after step 1, and the fermentation completion time of the second batch of sub-materials is 10 days after the first addition of new materials in step 4; the new materials in steps 4, 5 and 6 refer to the furfural residues that have been pH adjusted, and the fermentation detonator and the bacterial agent are added and mixed evenly, and the water content is 55-60%.

[0077] The alkaline material is calcium magnesium phosphate fertilizer. The pH value of the furfural residue after adjusting the pH value in step 1 is 6-8. The mass of the furfural residue is 92% of the mass of the fermentation pile. The mass of the fermentation detonator is 5% of the mass of the fermentation pile. The bacterial agent is a mixture of Bacillus, Trichoderma, yeast, actinomycetes and Aspergillus niger. The mass of the bacterial agent is 0.1% of the mass of the fermentation pile. The amount of new material added is 33% of the mass fraction of the fermentation pile. The sub-materials in steps 5 and 6 respectively form sub-material piles, and when the material temperature of the sub-material pile is greater than 60°C, the pile is turned over.

[0078] Example 3

[0079] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, the preparation method comprising the following steps:

[0080] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0081] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0082] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0083] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0084] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0085] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0086] Step 7: Repeat step 6 above;

[0087] The fermentation detonator in the above steps is furfural residue with a fermentation temperature of 40-60°C; the fermentation completion time of the first batch of sub-materials is 9 days after step 1, and the fermentation completion time of the second batch of sub-materials is 9 days after the first addition of new materials in step 4; the new materials in steps 4, 5 and 6 refer to the furfural residues with pH adjusted, and the fermentation detonator and bacterial agent are added and mixed evenly, and the water content is 55-60%.

[0088] The alkaline material is magnesium oxide. The pH value of the furfural residue after adjusting the pH value in step 1 is 6-8. The mass of the furfural residue is 81% of the mass of the fermentation pile. The mass of the fermentation detonator is 12.5% ​​of the mass of the fermentation pile. The bacterial agent is a mixture of Trichoderma and yeast. The mass of the bacterial agent is 0.6% of the mass of the fermentation pile. The amount of new material added is 27% of the mass fraction of the fermentation pile. The sub-materials in steps 5 and 6 form sub-material piles respectively, and when the material temperature of the sub-material pile is greater than 60°C, the pile is turned over.

[0089] Example 4

[0090] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, the preparation method comprising the following steps:

[0091] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0092] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0093] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0094] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0095] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0096] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0097] Step 7: Repeat step 6 above;

[0098] The fermentation detonator in the above steps is a mixture of horse manure that has been placed for one week, sheep manure that has been placed for one week and furfural residue fermented at a temperature of 40-60 degrees Celsius; the fermentation completion time of the first batch of sub-materials is 10 days after step 1, and the fermentation completion time of the second batch of sub-materials is 10 days after the first addition of new materials in step 4; the new materials in steps 4, 5 and 6 refer to the furfural residues that have their pH adjusted, and are mixed evenly after adding the fermentation detonator and the bacterial agent, and have a water content of 55-60%.

[0099] The alkaline material is a mixture of calcium magnesium phosphate, lime and magnesium oxide. The pH value of the furfural slag after adjusting the pH value in step 1 is 6-8. The mass of the furfural slag is 85% of the mass of the fermentation pile. The mass of the fermentation detonator is 18% of the mass of the fermentation pile. The bacterial agent is a mixture of yeast, actinomycetes and Aspergillus niger. The mass of the bacterial agent is 0.8% of the mass of the fermentation pile. The amount of new material added is 30% of the mass fraction of the fermentation pile. The sub-materials in steps 5 and 6 form sub-material piles respectively, and when the material temperature of the sub-material pile is greater than 60°C, the pile is turned over.

[0100] Example 5

[0101] A method for preparing organic fertilizer by continuous and rapid fermentation of furfural residues, the preparation method comprising the following steps:

[0102] Step 1: adjusting the pH value of the furfural residue by using an alkaline material;

[0103] Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value;

[0104] Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%;

[0105] Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed;

[0106] Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials;

[0107] Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material;

[0108] Step 7: Repeat step 6 above;

[0109] The fermentation detonator in the above steps is a mixture of sheep manure that has been placed for one week and furfural residue with a fermentation temperature of 40-60 degrees; the fermentation completion time of the first batch of sub-materials is 8 days after step 1, and the fermentation completion time of the second batch of sub-materials is 8 days after the first addition of new materials in step 4; the new materials in steps 4, 5 and 6 refer to the furfural residues that have pH value adjusted, and are mixed evenly after adding the fermentation detonator and the bacterial agent, and the water content is 55-60%.

[0110] The alkaline material is a mixture of calcium magnesium phosphate and lime. The pH value of the furfural slag after adjusting the pH value in step 1 is 6-8. The mass of the furfural slag is 90% of the mass of the fermentation pile. The mass of the fermentation detonator is 10% of the mass of the fermentation pile. The bacterial agent is selected from one or more of Bacillus, Trichoderma, yeast, actinomycetes or Aspergillus niger. The mass of the bacterial agent is 1% of the mass of the fermentation pile. The amount of new material added is 26% of the mass fraction of the fermentation pile. The sub-materials in steps 5 and 6 form sub-material piles respectively, and when the material temperature of the sub-material pile is greater than 60°C, the pile is turned over.

[0111] The above examples are merely specific descriptions of feasible implementation modes of the present invention. They are not intended to limit the protection scope of the present invention. All equivalent implementation modes, changes and modifications that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues, characterized in that: The preparation method comprises the following steps: Step 1: adjusting the pH value of the furfural residue by using an alkaline material; Step 2: adding fermentation detonator and bacterial agent to the furfural residue after adjusting the pH value; Step 3: Evenly mix the materials in step 2 and form a fermentation pile for fermentation, wherein the moisture content of the fermentation pile is 55-60%; Step 4: When the material temperature of the fermentation pile in step 3 is greater than 60° C., new material is added to the fermentation pile for mixing, and the pile is turned over; after the turning over is completed, a master batch is formed; Step 5: When the temperature of the masterbatch in step 4 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix it with the removed sub-material, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the first batch of sub-materials; Step 6: When the temperature of the masterbatch in the above step 5 is greater than 60°C, remove the sub-material from the masterbatch pile, add new material to the masterbatch pile and mix with it, and turn the pile over; the weight of the removed sub-material is the same as the weight of the added new material; the sub-material is the second batch of sub-material; Step 7: Repeat step 6 above; The fermentation detonator in the above steps is selected from one or more of horse manure that has been stored for one week, sheep manure that has been stored for one week, and furfural residue fermented at a temperature of 40 to 60 degrees Celsius; The fermentation of the first batch of sub-materials is completed 8 to 10 days after step 1, and the fermentation of the second batch of sub-materials is completed 8 to 10 days after the first addition of new materials in step 4; The new material in step 4, step 5 and step 6 refers to the material obtained by adjusting the pH value of furfural residue, adding fermentation detonator and bacterial agent, mixing evenly and having a water content of 55-60%.

2. a method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The alkaline material is one or more of calcium magnesium phosphate fertilizer, lime and magnesium oxide.

3. a method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The pH value of the furfural residue after adjusting the pH value in step 1 is 6-8.

4. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The mass of the furfural residue is 70-92% of the mass of the fermentation pile.

5. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The mass of the fermentation detonator is 5-20% of the mass of the fermentation pile.

6. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The bacterial agent is selected from one or more of Bacillus, Trichoderma, yeast, actinomycetes or Aspergillus niger.

7. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 6, characterized in that: The mass of the bacterial agent is 0.1% to 1% of the mass of the fermentation pile.

8. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The amount of new material added is 20-33% of the mass fraction of the fermentation material pile.

9. A method for preparing organic fertilizer by continuous rapid fermentation of furfural residues according to claim 1, characterized in that: The sub-materials in step 5 and step 6 are respectively formed into sub-material piles, and when the material temperature of the sub-material pile is greater than 60° C., the piles are turned.