Rapid composting method for livestock and poultry manure
By using biochar-loaded stearic acid stabilizers and synergistic fluids in livestock and poultry manure compost, the problems of long and poor compost time caused by heavy metals and antibiotics are solved, and a fast and efficient compost process and high-quality compost products are achieved.
Patent Information
- Application Number
- CN202510098863.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-04-22
AI Technical Summary
Conventional compost for livestock and poultry manure is caused by the existence of heavy metals and antibiotics, which lead to long composting time and poor quality of compost products.
By adding biochar-loaded stearic acid stabilizer and synthesized liquid to livestock and poultry manure, the pH and moisture content of the compost materials are adjusted to form efficient compost materials, promote microbial decomposition, shorten the composting time, and seal heavy metal ions through the synthesized liquid to improve the quality of the compost.
It effectively reduces the inhibition of microbial activity by heavy metals and antibiotics, shortens the composting time, improves the compost efficiency and product quality, and ensures the reduction of the content of active heavy metals and antibiotics in compost products.
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Figure CN119859070A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of livestock and poultry excrement composting, and in particular to a livestock and poultry excrement rapid composting method. Background Art
[0002] As an important part of agricultural production, livestock and poultry farming plays a key role in ensuring food supply and promoting economic development. However, with the expansion of farming scale, the large amount of livestock and poultry manure has become an environmental problem that cannot be ignored. Livestock and poultry manure contains a large amount of organic matter and nutrients. If it is not handled properly, it will not only cause a waste of resources, but also may cause soil, water and air pollution. The resource utilization of livestock and poultry manure is an effective way to solve these problems.
[0003] At present, the resource utilization of livestock and poultry manure is mainly divided into three types: energy utilization, feed utilization and fertilizer utilization, among which fertilizer utilization is the simplest and most widely used method. In the past, livestock and poultry manure was usually used as fertilizer in agricultural production in the form of direct return to the field, but it was restricted because it was easy to cause the spread of pathogens and the emission of harmful gases. Applying livestock and poultry manure after composting and decomposing it into fertilizer can effectively reduce the problems of pathogen transmission and harmful gas emission, and better promote the fertilizer utilization of livestock and poultry manure. However, due to the addition and use of heavy metals and antibiotics in the livestock and poultry breeding process, a high amount of heavy metals and antibiotics are present in the livestock and poultry manure produced. When composting by conventional methods, heavy metals and antibiotics will inhibit the activity of microorganisms, resulting in prolonged composting time and reduced composting efficiency. In addition, the humus produced by composting can adsorb and fix heavy metal ions, passivating their activity. However, the degree of humification during conventional composting is low, and the passivation effect on heavy metals is poor. In addition, the adsorbed and fixed heavy metal ions are more easily desorbed and released when environmental conditions change, thereby reducing the quality of the compost product.
[0004] Therefore, there is a need to find a composting method for livestock and poultry manure to solve the problem of long composting time and poor quality of compost products due to the presence of heavy metals and antibiotics in conventional composting of livestock and poultry manure. Summary of the invention
[0005] In view of this, the object of the present invention is to provide a method for rapid composting of livestock and poultry manure to solve the problem that the composting time is long and the quality of the compost product is poor due to the presence of heavy metals and antibiotics in conventional composting of livestock and poultry manure.
[0006] The present invention solves the above technical problems by the following technical means:
[0007] A method for rapid composting of livestock and poultry manure, comprising the following steps:
[0008] (1) Adding a stabilizer to livestock and poultry manure, stirring and mixing thoroughly, and then letting it stand for 2 to 4 days to obtain stabilized livestock and poultry manure;
[0009] (2) adding agricultural and forestry waste to stabilized livestock and poultry manure to adjust the carbon-nitrogen ratio to (25-30):1, then adding composite microbial agents and glucose in sequence to obtain compost material, adjusting the pH of the compost material to 7.5-8.5, and adjusting the water content to 55%-65%;
[0010] (3) The compost material after adjusting the moisture content and pH value is built into a pile with a height of 1 to 1.5 m for composting. The width of the pile is determined according to the volume of the material and the composting site. The pile is turned every 4 to 6 days. When the temperature at the center of the pile drops to 55°C, a synergistic liquid is prepared and sprayed, and then the composting is continued. When the temperature at the center of the pile continues to drop to the ambient temperature and remains stable, and there is no obvious odor, the compost is mature and the finished compost is obtained.
[0011] Furthermore, the preparation method of the stabilizer in step (1) is as follows:
[0012] A: Soak the biochar in a 0.5wt% acetic acid solution overnight, then add thioglycerol, heat to 45-55°C for reaction for 4-6 hours, add p-aminobenzoic acid, further heat to 80-90°C for reaction for 4-6 hours, cool naturally to room temperature after the reaction is completed, filter to remove the filtrate and dry to obtain the pretreated biochar;
[0013] B: Stearic acid is heated to 80°C and melted, and then pretreated biochar is added and kept warm for 4 to 6 hours. After naturally cooling to room temperature, catechol is added and mixed evenly to obtain a stabilizer.
[0014] Furthermore, in step A, the mass ratio of biochar, acetic acid solution, thioglycerol and p-aminobenzoic acid is (5-10): (15-30): (0.6-1.2): (0.4-0.8).
[0015] Furthermore, in step B, the mass ratio of stearic acid to pretreated biochar and catechol is (6-9): (5-7): (0.5-0.6).
[0016] Furthermore, in step (1), the mass ratio of livestock and poultry manure to stabilizer is (100-120): (10-15).
[0017] Furthermore, in step (2), the agricultural and forestry waste is any one or two of straw, wood chips, rice husks, and coconut bran.
[0018] Furthermore, in step (2), the composite microbial agent is obtained by mixing Bacillus subtilis, Aspergillus niger and yeast in a mass ratio of 2:1:1.
[0019] Furthermore, in the step (2), the mass ratio of the stabilized livestock and poultry manure to the composite microbial agent and glucose is (100-120): (1-1.5): (0.8-1).
[0020] Furthermore, the preparation method of the synergistic liquid in step (3) is as follows:
[0021] After dissolving p-toluenesulfonic acid in water, 4-tert-butyl cyclohexanol is added and mixed evenly to obtain a synergistic solution.
[0022] Furthermore, the mass ratio of 4-tert-butyl cyclohexanol, p-toluenesulfonic acid and water in the synergistic liquid is (4-6): (0.04-0.06): (8-12).
[0023] In order to reduce the inhibition of heavy metals and antibiotics on the activity of microorganisms in the composting process and the influence on the quality of compost products, the present invention prepares a stabilizer and a synergist to treat the compost, wherein the stabilizer is prepared by loading stearic acid with biochar, and the stabilizer and livestock and poultry manure are mixed and statically treated, and the biochar in the stabilizer can effectively adsorb heavy metal ions and antibiotics in the livestock and poultry manure, thereby reducing the inhibitory effect of heavy metals and antibiotics on the activity of microorganisms, promoting the decomposition of livestock and poultry manure by microorganisms, and shortening the composting maturity time.
[0024] The stearic acid loaded on biochar is a phase change material. When the temperature rises during the composting process, it turns into a molten state to adhere to and wrap heavy metal ions. When the temperature drops to 55°C in the later stage, the synergist is sprayed for treatment. The 4-tert-butyl cyclohexanol in the synergist reacts with stearic acid to form a stable product, thereby sealing and retaining the heavy metal ions attached to itself and adsorbed by biochar inside the biochar, inhibiting their desorption, and thus effectively improving the quality of compost. In addition, since the stearic acid loaded on biochar has heat storage properties, it can reduce the loss of heat during composting, which is conducive to extending the duration of high temperature in composting, and then promoting the high-temperature decomposition of antibiotics. Through the combined action of stabilizers and synergists, while reducing the inhibition of heavy metals and antibiotics on microbial activity, it can effectively reduce the content of active heavy metals and antibiotics in compost products, and inhibit the desorption of adsorbed and fixed heavy metal ions, while improving the composting efficiency, ensuring the quality of compost products.
[0025] Since stearic acid will cover some of the active sites inside the biochar after entering it when biochar is loaded with stearic acid, thereby reducing the adsorption performance of the biochar for heavy metal ions and antibiotics. Therefore, before loading stearic acid, the biochar is treated with thioglycerol and p-aminobenzoic acid in sequence to adjust the surface charge and chemical properties of the biochar, enhance the interaction between the biochar and the heavy metal ions and antibiotics, and thus enhance the adsorption and fixation performance of the biochar for heavy metals and antibiotics. In addition, catechol is added to the stabilizer in the present invention to promote the humification of the compost, thereby forming more humus, which reacts and complexes with heavy metal ions through the rich functional groups on its surface, passivates the activity of heavy metal ions in the compost, and works together with the stabilizer and the synergist to better improve the quality of the compost product.
[0026] Beneficial effects:
[0027] The present invention prepares a stabilizer and a synergist liquid and adds them during livestock and poultry manure composting, thereby effectively reducing the influence of heavy metals and antibiotics on microbial activity, thereby shortening the composting time and improving the composting efficiency. At the same time, the stabilizer and the synergist liquid better promote the degradation of antibiotics and the passivation of heavy metal ions, and inhibit the desorption of heavy metal ions, so as to prepare a compost product with better quality, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 : This is a picture of the finished product obtained by composting the experimental group 1 of the present invention. DETAILED DESCRIPTION
[0029] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings:
[0030] The invention discloses a method for rapid composting of livestock and poultry excrement. When composting the livestock and poultry excrement, a stabilizer and a synergist liquid need to be prepared, as shown below.
[0031] Example 1: Preparation of stabilizer
[0032] A: 6 kg of biochar was placed in 18 kg of 0.5 wt% acetic acid solution and soaked overnight, then 0.9 kg of thioglycerol was added, the temperature was raised to 50 ° C for reaction for 5 hours, and then 0.6 kg of p-aminobenzoic acid was added, and the temperature was further raised to 85 ° C for reaction for 5 hours. After the reaction was completed, it was naturally cooled to room temperature, the filtrate was filtered out, and then dried at 60 ° C to obtain the pretreated biochar;
[0033] B: Heat 7 kg of stearic acid to 80°C, melt it, add 6 kg of pretreated biochar, keep it warm for 5 hours, then naturally cool it to room temperature, add 0.55 kg of catechol and mix well to obtain a stabilizer.
[0034] Example 2: Preparation of stabilizer 2
[0035] A: 5 kg of biochar was soaked in 15 kg of 0.5 wt% acetic acid solution overnight, and then 0.6 kg of thioglycerol was added, and the temperature was raised to 45 ° C for reaction for 6 hours, and then 0.4 kg of p-aminobenzoic acid was added, and the temperature was further raised to 80 ° C for reaction for 6 hours. After the reaction was completed, it was naturally cooled to room temperature, and the filtrate was filtered out and dried at 60 ° C to obtain the pretreated biochar;
[0036] B: Heat 6 kg of stearic acid to 80°C, melt it, add 5 kg of pretreated biochar, keep it warm for 4 hours, then naturally cool it to room temperature, add 0.5 kg of catechol and mix well to obtain a stabilizer.
[0037] Example 3: Preparation of Stabilizer III
[0038] A: 10 kg of biochar was soaked in 30 kg of 0.5 wt% acetic acid solution overnight, and then 1.2 kg of thioglycerol was added, and the temperature was raised to 55 ° C for reaction for 4 hours, and then 0.8 kg of p-aminobenzoic acid was added, and the temperature was further raised to 90 ° C for reaction for 4 hours. After the reaction was completed, it was naturally cooled to room temperature, and the filtrate was filtered out and dried at 60 ° C to obtain the pretreated biochar;
[0039] B: Heat 9 kg of stearic acid to 80°C, melt it, add 7 kg of pretreated biochar, keep it warm for 6 hours, then naturally cool it to room temperature, add 0.6 kg of catechol and mix well to obtain a stabilizer.
[0040] Comparative Example 1: Preparation of Stabilizer
[0041] In contrast to Example 1, the only difference is that in step A of preparing the stabilizer in Comparative Example 1, thioglycerol is not used to treat the biochar, as shown below:
[0042] A: 6 kg of biochar was soaked in 18 kg of 0.5 wt% acetic acid solution overnight, and then 0.6 kg of p-aminobenzoic acid was added, and the temperature was raised to 85 ° C for reaction for 5 hours. After the reaction was completed, it was naturally cooled to room temperature, and the filtrate was filtered out and dried at 60 ° C to obtain the pretreated biochar;
[0043] B: Same as Example 1.
[0044] Comparative Example 2: Preparation of Stabilizer
[0045] In contrast to Example 1, the only difference is that in step A of preparing the stabilizer in Comparative Example 2, p-aminobenzoic acid is not used to treat the biochar, as shown below:
[0046] A: 6 kg of biochar was soaked in 18 kg of 0.5 wt% acetic acid solution overnight, and then 0.9 kg of thioglycerol was added, and the temperature was raised to 50 ° C for reaction for 5 hours. After the reaction was completed, it was naturally cooled to room temperature, and the filtrate was filtered out and dried at 60 ° C to obtain the pretreated biochar;
[0047] B: Same as Example 1.
[0048] Comparative Example 3: Preparation of Stabilizer
[0049] In contrast to Example 1, the only difference is that in Comparative Example 3, when preparing the stabilizer, step A is not carried out in an acetic acid solution, but in an aqueous solution, as shown below:
[0050] A: 6 kg of biochar was soaked in 18 kg of clean water overnight, then 0.9 kg of thioglycerol was added, the temperature was raised to 50 ° C for reaction for 5 hours, and then 0.6 kg of p-aminobenzoic acid was added, and the temperature was further raised to 85 ° C for reaction for 5 hours. After the reaction was completed, it was naturally cooled to room temperature, the filtrate was filtered out, and then dried at 60 ° C to obtain the pretreated biochar;
[0051] B: Same as Example 1.
[0052] Comparative Example 4: Preparation of stabilizer
[0053] In contrast to Example 1, the only difference is that in the preparation of the stabilizer in Comparative Example 4, the reaction temperature after adding thioglycerol in step A is increased to 90° C., as shown below:
[0054] A: 6 kg of biochar was soaked in 18 kg of 0.5 wt% acetic acid solution overnight, and then 0.9 kg of thioglycerol was added, the temperature was raised to 90 ° C for reaction for 5 hours, and then 0.6 kg of p-aminobenzoic acid was added, the temperature was lowered to 85 ° C for reaction for 5 hours, and after the reaction was completed, it was naturally cooled to room temperature, the filtrate was filtered out, and then dried at 60 ° C to obtain the pretreated biochar;
[0055] B: Same as Example 1.
[0056] Comparative Example 5: Preparation of Stabilizer
[0057] In contrast to Example 1, the only difference is that in Comparative Example 5, the biochar is not pretreated during the preparation of the stabilizer, but conventional biochar is loaded with stearic acid to obtain the stabilizer. The specific method is as follows:
[0058] 7 kg of stearic acid was heated to 80°C and melted, and then 6 kg of conventional biochar was added and kept warm for 5 hours. Then, the mixture was naturally cooled to room temperature, 0.55 kg of catechol was added, and the mixture was evenly mixed to obtain a stabilizer.
[0059] Comparative Example 6: Preparation of Stabilizer
[0060] In contrast to Example 1, the only difference is that in Comparative Example 6, no biochar is added during the preparation of the stabilizer, but stearic acid and catechol are directly mixed to prepare the stabilizer. The specific method is as follows:
[0061] A: Same as Example 1;
[0062] B: 7 kg of stearic acid and 0.55 kg of catechol were mixed uniformly to obtain a stabilizer.
[0063] Comparative Example 7: Preparation of Stabilizer
[0064] In contrast to Example 1, the only difference is that catechol is not added when preparing the stabilizer in Comparative Example 7. The specific method is as follows:
[0065] A: Same as Example 1;
[0066] B: Heat 7 kg of stearic acid to 80°C to melt, add 6 kg of pretreated biochar and keep warm for 5 hours, then cool naturally to room temperature to obtain a stabilizer.
[0067] Embodiment 4: livestock and poultry manure composting method
[0068] The preparation method of the synergistic liquid in this embodiment is as follows:
[0069] 0.04 kg of p-toluenesulfonic acid was added to 8 kg of water to dissolve, and then 4 kg of 4-tert-butyl cyclohexanol was added and mixed evenly to obtain a synergistic liquid;
[0070] (1) Add 12 kg of the stabilizer prepared by the method of Example 1 to 100 kg of pig manure, stir and mix thoroughly, and then let it stand for 3 days to obtain stabilized livestock and poultry manure;
[0071] (2) The number of viable bacteria is about 4×10 10 cfu / g of Bacillus subtilis, and the number of viable bacteria is about 1×10 9 The cfu / g of Aspergillus niger and the number of viable bacteria were about 2×10 10 cfu / g yeasts are mixed in a mass ratio of Bacillus subtilis: Aspergillus niger: yeast = 2:1:1 to obtain a composite microbial agent; wheat straw is added to stabilized livestock and poultry manure to adjust the carbon-nitrogen ratio to about 25:1, and then 1.2kg of the composite microbial agent and 0.9kg of glucose are added in sequence to obtain a compost material, and the pH of the compost material is adjusted to 8 and the water content is adjusted to 60%;
[0072] (3) The compost material after adjusting the moisture content and pH value is piled into a pile with a height of about 1 m for composting, and then turned over every 5 days. After the high temperature period, when the central temperature of the pile drops to 55°C in the later stage, 5 kg of synergistic liquid is prepared and sprayed, and then the composting is continued. When the central temperature of the pile continues to drop to the ambient temperature and remains stable, the composting is completed, and when there is no obvious odor, the compost is mature and the finished compost is obtained.
[0073] Experiment: Composting of livestock and poultry manure
[0074] According to the method of Example 4, a livestock and poultry manure composting experiment was carried out, and the experiment was divided into 11 groups: experimental group 1, control groups 1 to 9, and a blank control group;
[0075] Experimental group 1 used the composting method of Example 4 and the stabilizer prepared in Example 1;
[0076] Control groups 1 to 7 respectively used the stabilizers of comparative examples 1 to 7 and carried out composting according to the method of Example 4;
[0077] Control group 8: No stabilizer was added in step (1) during composting, and the remaining steps were the same as those in Example 4;
[0078] Control group 9: The stabilizer prepared by the method of Example 1 was used, and no synergist was sprayed in step (3) during composting, and the remaining steps were the same as those of Example 4;
[0079] Blank control group: during composting, no stabilizer was added in step (1), no synergist was added in step (3), and the remaining steps were the same as those in Example 4.
[0080] 2. The compost was judged to be fully mature when the central temperature of each group of compost dropped to room temperature and there was no obvious odor. The maturity time of each group of compost was tested, and the content of effective heavy metal ions (cadmium, copper, zinc) and antibiotics (tetracycline + oxytetracycline + chlortetracycline) before and after composting were tested. The reduction rate of effective heavy metal ions and the degradation rate of antibiotics before and after composting were calculated. The specific calculation method is as follows:
[0081] Reduction rate of effective heavy metal ions = (effective heavy metal ion content before composting - effective heavy metal ion content after composting) / effective heavy metal ion content before composting × 100%;
[0082] Antibiotic degradation rate = (antibiotic content before composting - antibiotic content after composting) / antibiotic content before composting × 100%. The experiment was repeated three times, and the data obtained are shown in Table 1.
[0083] Table 1
[0084]
[0085]
[0086] According to the data analysis in Table 1:
[0087] (1) According to the method of the present invention, the stabilizer and the synergist are prepared and co-composted. The composting is completed in only 31 days, which effectively shortens the composting maturity time. The degradation rates of tetracycline, oxytetracycline and chlortetracycline reach 98.63%. The content of effective heavy metal ions after composting is greatly reduced, and the obtained compost product has good quality.
[0088] (2) In the control group 1, the biochar was not treated with thioglycerol when preparing the stabilizer for composting, which reduced the adsorption performance of biochar for heavy metal ions, thus affecting the activity of microorganisms and increasing the composting time. In addition, the amount of fixed and passivated effective heavy metal ions in the final compost product was reduced. In the control group 2, the biochar was not treated with p-aminobenzoic acid when preparing the stabilizer for composting, which reduced the hydrophobic interaction of biochar with antibiotics, reduced the amount of adsorption and fixation, inhibited the activity of microorganisms, and prolonged the composting time.
[0089] (3) The stabilizer for the compost in control group 3 was not prepared in acetic acid solution. The reaction temperature of thioglycerol was adjusted to 90°C during the preparation of the stabilizer for the compost in control group 4. The changes in the reaction conditions of control groups 3 and 4 inhibited the reaction activity, thereby reducing the treatment effect of biochar and affecting the effect of the stabilizer. In the preparation of the stabilizer for the compost in control group 6, biochar was not used to load stearic acid. Instead, stearic acid was directly mixed with catechol to prepare the stabilizer, which failed to effectively adsorb and fix heavy metals and antibiotics. Heavy metals and antibiotics inhibited the activity of microorganisms, increased the composting time, and further affected the degradation of antibiotics. In the preparation of the stabilizer for the compost in control group 7, catechol was not added, which failed to better promote the humification of the compost, and the amount of complexed and fixed heavy metal ions was reduced.
[0090] (4) The control group 9 did not spray the enhancer during composting, which failed to fix and seal more heavy metal ions inside the biochar, and the content of effective heavy metal ions in the fertilizer increased.
[0091] Experiment 2: Determination of seed germination index
[0092] The seed germination index of the compost products of the experimental group 1, the control groups 1 to 9, and the blank control group was determined as follows:
[0093] Weigh 10g of fresh compost sample, place it in a 250ml conical flask, add 100ml of deionized water, shake it in a 25℃ constant temperature incubator at 180r / min for 1h, then take it out and let it stand for 0.5h, then centrifuge it at 3000r / min for 20min to get the supernatant, filter the supernatant, take 10ml and add it to a culture dish with filter paper, set a blank control with deionized water, place 20 high-quality cabbage seeds with full grains and uniform size in each culture dish, cover the culture dish with a lid and culture it in a 25℃ constant temperature incubator for 48h, count the number of germinated seeds, and measure the length of the main root. Do 3 replicates for each group of compost, and then calculate the seed germination index.
[0094] Seed germination index (GI) = (number of experimental seeds germinated / number of blank seeds germinated) × (root length of experimental group / root length of blank group) × 100%.
[0095] According to the above method, the seed germination index of the compost products of the experimental group 1, the control groups 1 to 9 and the blank control group was measured respectively, and the data obtained are shown in Table 2:
[0096] Table 2
[0097] Seed germination index (%) Experimental Group 1 96.42 Control group 1 91.45 Control group 2 92.14 Control group 3 93.44 Control group 4 95.08 Control group 5 91.02 Control group 6 85.28 Control group 7 88.32 Control group 8 83.95 Control group 9 93.69 Blank control 81.24
[0098] According to the data analysis in Table 2:
[0099] The seed germination index of each group was higher than 80%, which further proved that the composts in each group were fully decomposed, and the seed germination index in the experimental group 1 of the present invention reached 96.42%, indicating that the composting product obtained by the method of the present invention is of good quality, can effectively promote seed germination, and has good application prospects.
[0100] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.
Claims
1. A method for rapid composting of livestock and poultry manure, characterized in that: The method is as follows: (1) Adding a stabilizer to livestock and poultry manure, mixing well and letting it stand for 2 to 4 days to obtain stabilized livestock and poultry manure; (2) adding agricultural and forestry waste to stabilized livestock and poultry manure to adjust the carbon-nitrogen ratio to (25-30):1, then adding composite microbial agents and glucose to obtain compost material, adjusting the pH of the compost material to 7.5-8.5, and adjusting the water content to 55%-65%; (3) The compost material after adjusting the moisture content and pH value is piled into a pile with a height of 1 to 1.5 m for composting, and the pile is turned every 4 to 6 days. When the temperature at the center of the pile drops to 55°C, the compost is sprayed with a synergistic liquid and the compost is continued until maturity to obtain a finished compost product.
2. A method for rapid composting of livestock and poultry manure according to claim 1, characterized in that: The method for preparing the stabilizer in step (1) is as follows: A: Soak the biochar in a 0.5wt% acetic acid solution overnight, then add thioglycerol, heat to 45-55°C for reaction for 4-6 hours, add p-aminobenzoic acid, further heat to 80-90°C for reaction for 4-6 hours, cool naturally to room temperature after the reaction is completed, filter to remove the filtrate and dry to obtain the pretreated biochar; B: Stearic acid is heated to 80°C and melted, and then pretreated biochar is added and kept warm for 4 to 6 hours. After naturally cooling to room temperature, catechol is added and mixed evenly to obtain a stabilizer.
3. A method for rapid composting of livestock and poultry manure according to claim 2, characterized in that: In the step A, the mass ratio of biochar, acetic acid solution, thioglycerol and p-aminobenzoic acid is (5-10): (15-30): (0.6-1.2): (0.4-0.8).
4. A method for rapid composting of livestock and poultry manure according to claim 3, characterized in that: In the step B, the mass ratio of stearic acid to pretreated biochar and catechol is (6-9): (5-7): (0.5-0.6).
5. A method for rapid composting of livestock and poultry manure according to claim 4, characterized in that: In the step (1), the mass ratio of livestock and poultry manure to stabilizer is (100-120): (10-15).
6. A method for rapid composting of livestock and poultry manure according to claim 5, characterized in that: In the step (2), the agricultural and forestry waste is any one or two of straw, wood chips, rice husks and coconut bran.
7. A method for rapid composting of livestock and poultry manure according to claim 6, characterized in that: The composite microbial agent in step (2) is obtained by mixing Bacillus subtilis, Aspergillus niger and yeast in a mass ratio of 2:1:
1.
8. A method for rapid composting of livestock and poultry manure according to claim 7, characterized in that: In the step (2), the mass ratio of the stabilized livestock and poultry manure to the composite microbial agent and glucose is (100-120): (1-1.5): (0.8-1).
9. A method for rapid composting of livestock and poultry manure according to claim 8, characterized in that: The method for preparing the synergistic liquid in step (3) is as follows: After dissolving p-toluenesulfonic acid in water, 4-tert-butyl cyclohexanol is added and mixed evenly to obtain a synergistic solution.
10. A method for rapid composting of livestock and poultry manure according to claim 9, characterized in that: The mass ratio of 4-tert-butyl cyclohexanol, p-toluenesulfonic acid and water in the synergistic liquid is (4-6): (0.04-0.06): (8-12).