Antibiotic mushroom dreg composite soil conditioner and preparation method thereof
By mixing the solid-liquid mixture of harmless antibiotic bacteria residues with xanthan gum, nitrogen fertilizer and other raw materials in a specific proportion, an antibiotic bacteria residue composite soil improver was prepared, which solved the problem of low organic matter content and poor water retention of soil improver for the preparation of antibiotic bacteria residues, and efficient utilization of antibiotic bacteria residue resources was achieved, and the water retention capacity of saline-alkali land and waste residue resource utilization was improved.
Patent Information
- Application Number
- CN202510103251.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-04-25
AI Technical Summary
In the prior art, the soil improvement agent for preparing antibiotic bacteria residues has low organic matter content and poor water retention. It is difficult to effectively utilize antibiotic bacteria residue resources, and it is impossible to effectively alleviate the agricultural water pressure in salinization and desertification areas.
The antibiotic bacteria residue composite soil improver is prepared by mixing the harmless antibiotic bacteria residue solid-liquid mixture with xanthan gum, nitrogen fertilizer and other raw materials in a specific proportion, and stirring and adjusting the moisture content. This modified agent contains high organic matter and nutrients, and has good water retention and stability.
The efficient utilization of antibiotic bacterial residue resources has been achieved, the water retention capacity of salinized or desertified land has been improved, the problem of salinization has been eliminated, and the purpose of waste residue resource utilization and economic benefits has been achieved.
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Figure CN119874456A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of soil improvement, and in particular relates to an antibiotic bacterial residue composite soil improver and a preparation method thereof. Background Art
[0002] The main components of antibiotic residue are mycelium of drug-producing bacteria, unused culture medium, metabolites produced during fermentation, degradation products of culture medium and a small amount of active drug ingredients, etc. The moisture content of antibiotic residue is 70%-90%, the crude protein content in the dry residue is 30%-40%, the crude fiber and crude fat content is 10%-20%, and it also contains a variety of amino acids and trace elements, which has a high utilization value.
[0003] Soil salinization and desertification are a global problem. At present, there is little research on the preparation of water-retaining organic fertilizer improvers from antibiotic residues. Water-retaining organic fertilizers can not only improve the utilization value of antibiotic residues and solve the problem of resource utilization of antibiotic residues, but also alleviate the pressure of agricultural water use in arid, semi-arid, saline-alkali and desertified areas to a certain extent.
[0004] In view of the problems of low organic matter content and poor water retention when preparing soil conditioners from antibiotic bacterial residues, there is an urgent need to provide a high-quality organic fertilizer soil conditioner with balanced nutrient content, high nitrogen, phosphorus, potassium and organic matter content, and good water retention, so as to improve the water retention capacity of salinized or desertified land and eliminate salinization, thereby achieving resource utilization of waste residues, which has important application prospects and significance for economic and social sustainable development. Summary of the invention
[0005] In view of the problems of the prior art, the present invention provides an antibiotic bacterial residue composite soil conditioner and a preparation method thereof.
[0006] An antibiotic bacterial residue composite soil conditioner is prepared from raw materials in the following proportions:
[0007] Harmless antibiotic residue solid-liquid mixture: 60-100 parts by volume,
[0008] Xanthan gum: 2-5 parts by weight,
[0009] Nitrogen fertilizer: 5-10 parts by weight,
[0010] The mass volume ratio of the solid-liquid mixture of xanthan gum and harmless antibiotic residue is 1kg:10-50L;
[0011] The water content of the harmless antibiotic residue solid-liquid mixture is 90-95%;
[0012] The moisture content of the antibiotic bacterial residue composite soil conditioner is 50-90%.
[0013] Preferably, it is prepared from the following raw materials:
[0014] Solid-liquid mixture of harmless antibiotic residue: 70-80 parts by volume,
[0015] Xanthan gum: 2-3 parts by weight,
[0016] Nitrogen fertilizer: 5-6 parts by weight;
[0017] The moisture content of the antibiotic bacterial residue composite soil conditioner is 70-85%.
[0018] Preferably, the nitrogen fertilizer is selected from at least one of urea, ammonium sulfate, ammonium nitrate, ammonium chloride, ammonium bicarbonate and calcium nitrate.
[0019] The present invention also provides a method for preparing the above-mentioned antibiotic bacterial residue composite soil conditioner, comprising the following steps:
[0020] Step 1: hydrolyzing the antibiotic fermentation broth residue to obtain a harmless antibiotic bacterial residue solid-liquid mixture;
[0021] Step 2: Add xanthan gum into water and stir to obtain a xanthan gum aqueous solution;
[0022] Step 3: Mix the xanthan gum aqueous solution and the harmless antibiotic residue solid-liquid mixture, and stir to obtain a mixed solution;
[0023] Step 4: Stir the mixed liquid and nitrogen fertilizer and adjust the moisture content to obtain.
[0024] Preferably, in step 1, the hydrolysis temperature is 140-160° C., and the hydrolysis time is 10-20 min;
[0025] And / or, in step 2, the stirring speed is 300-400r / min;
[0026] And / or, in step 3, the stirring speed is 200-300 r / min;
[0027] And / or, in step 4, the stirring speed is 200-300 r / min, and the stirring time is 15-25 min.
[0028] Preferably, in step 2, the mass ratio of xanthan gum to water is (2-5):(20-50).
[0029] Preferably, the mass ratio of xanthan gum to water is 2:(20-30).
[0030] Preferably, in step 3, the volume ratio of the xanthan gum aqueous solution and the harmless antibiotic bacterial residue solid-liquid mixture is (20-50):(60-100).
[0031] Preferably, the volume ratio of the xanthan gum aqueous solution and the harmless antibiotic bacterial residue solid-liquid mixture is (20-40):(70-80).
[0032] The present invention also provides use of the antibiotic bacterial residue composite soil conditioner in preparing water-retaining organic fertilizer.
[0033] The antibiotic bacterial residue composite soil conditioner provided by the present invention has high organic matter content, high total nutrient element content, balanced content ratio of each element, and good water retention and stability, so as to improve the water retention capacity of salinized or desertified land and eliminate salinization, thereby achieving the purpose of resource utilization of waste residues and realizing economic benefits.
[0034] Obviously, according to the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, other various forms of modification, replacement or change may be made.
[0035] The above contents of the present invention are further described in detail below through specific implementation methods in the form of embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following examples. All technologies realized based on the above contents of the present invention belong to the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 The present invention provides a flow chart of the method for preparing the antibiotic bacterial residue composite soil conditioner. DETAILED DESCRIPTION
[0037] In the following examples and experimental examples, reagents and raw materials not specifically described are all commercially available products.
[0038] Example 1 Erythromycin fermentation residue composite soil conditioner and preparation method thereof
[0039] The preparation method thereof comprises the following steps:
[0040] Step a. The erythromycin fermentation broth residue produced after filtration through a ceramic membrane (purchased from Sanda Membrane Technology Co., Ltd., model KB99-1203-046 (N14), membrane core performance: filtration area 20 m2, porosity 50 nm) is then hydrolyzed at high temperature (140°C saturated steam, maintained for 15 min) to obtain a harmless erythromycin residue solid-liquid mixture, the water content of which does not exceed 95% (the water content in this embodiment is preferably 95%); the erythromycin content is less than the detection limit of 1 ppm by high performance liquid chromatography;
[0041] Step b. Take 2 kg of xanthan gum and 20 L of tap water, stir and dissolve at room temperature at 300 r / min to obtain a xanthan gum aqueous solution;
[0042] Step c. Take 20L of the entire xanthan gum aqueous solution obtained in step b and 80L of the harmless erythromycin residue solid-liquid mixture and mix them with a mechanical stirrer at a speed of 200r / min;
[0043] Step d. Add 5 kg of ammonium sulfate to the mixed solution in step c, stir at a mechanical stirring speed of 200 r / min, and stir for 20 minutes.
[0044] Step e. Use tap water to adjust the moisture content to 80% and the production is completed.
[0045] The organic fertilizer efficiency index of the obtained soil conditioner is: pH 6.24, organic matter content 88.5%, total nitrogen content 8.7%, total phosphorus content (calculated as P2O5) 10.1%, and total potassium content (calculated as K2O) 1.82%.
[0046] Example 2: Cephalosporin C fermentation residue composite soil conditioner and preparation method thereof
[0047] The preparation method thereof comprises the following steps:
[0048] Step a. The cephalosporin C residue produced after the ceramic membrane filtration is then hydrolyzed at high temperature (140°C saturated steam, maintained for 15 min) to obtain a harmless cephalosporin residue solid-liquid mixture, the water content of which does not exceed 95% (the water content in this embodiment is preferably 95%); the cephalosporin C content is less than 1 ppm detection limit by high performance liquid chromatography;
[0049] Step b. Take 3 kg of xanthan gum and 40 L of tap water, stir and dissolve at room temperature at 400 r / min to obtain a xanthan gum aqueous solution;
[0050] Step c. Take 40L of the xanthan gum aqueous solution obtained in step b and 70L of the harmless cephalosporin residue solid-liquid mixture, and mix them with a mechanical stirrer at a speed of 300r / min;
[0051] Step d. Add 6 kg of ammonium sulfate to the mixed solution in step c, stir at a mechanical stirring speed of 300 r / min, and stir for 20 minutes.
[0052] Step e. Use tap water to adjust the moisture content to 80% and the production is completed.
[0053] The organic fertilizer efficiency index of the obtained soil conditioner is: pH 3.64, organic matter content 82.0%, total nitrogen content 7.6%, total phosphorus content (calculated as P2O5) 5.0%, and total potassium content (calculated as K2O) 1.08%.
[0054] Example 3: Penicillin fermentation residue composite soil conditioner and preparation method thereof
[0055] The preparation method thereof comprises the following steps:
[0056] Step a. The penicillin fermentation residue produced after plate and frame filtration is hydrolyzed at high temperature (140°C saturated steam, maintained for 15 min) to obtain a harmless penicillin residue solid-liquid mixture with a water content of 80%; the penicillin content is less than 1ppm detection limit by high performance liquid chromatography;
[0057] Step b. Take 2 kg of xanthan gum and 30 L of tap water, stir and dissolve at room temperature at 400 r / min to obtain a xanthan gum aqueous solution;
[0058] Step c. Take 30L of the entire xanthan gum aqueous solution obtained in step b and 70L of the harmless penicillin residue solid-liquid mixture and mix them with a mechanical stirrer at a speed of 300r / min;
[0059] Step d. Add 5 kg of ammonium sulfate to the mixed solution in step c, stir at a mechanical stirring speed of 300 r / min, and stir for 20 minutes.
[0060] Step e. Use tap water to adjust the moisture content to 70% and the production is completed.
[0061] The organic fertilizer efficiency indexes of the obtained soil conditioner are: pH 5.71, organic matter content 79.5%, total nitrogen content 7.86%, total phosphorus content (calculated as P2O5) 6.2%, and total potassium content (calculated as K2O) 1.32%.
[0062] The raw material ratio and reaction conditions in the antibiotic bacterial residue composite soil conditioner prepared by the present invention are obtained after optimization. The soil conditioner of the present invention contains xanthan gum, and can be stably stored for 25 days at room temperature without stratification, while the soil conditioner without xanthan gum begins to stratify and have peculiar smell after being stored for 20 days at room temperature, indicating that xanthan gum forms a highly three-dimensional network space in the aqueous solution, can absorb and lock a large amount of water, and can support the morphology of solid particles, droplets and bubbles at the same time, showing strong emulsification stabilization and high suspension ability, so that the soil conditioner exhibits good water retention and stability.
[0063] In summary, the antibiotic bacterial residue composite soil conditioner provided by the present invention has high organic matter content, high total nutrient element content, balanced proportion of each element content, and good water retention and stability, so as to improve the water retention capacity of salinized or desertified land and eliminate salinization, thereby achieving the purpose of resource utilization of waste residues and realizing economic benefits.
Claims
1. An antibiotic bacterial residue composite soil conditioner, characterized in that: It is prepared from the following raw materials: Harmless antibiotic residue solid-liquid mixture: 60-100 parts by volume, Xanthan gum: 2-5 parts by weight, Nitrogen fertilizer: 5-10 parts by weight, The mass volume ratio of the solid-liquid mixture of xanthan gum and harmless antibiotic residue is 1kg:10-50L; The water content of the harmless antibiotic residue solid-liquid mixture is 80-95%; The moisture content of the antibiotic bacterial residue composite soil conditioner is 50-90%.
2. The antibiotic bacterial residue composite soil conditioner according to claim 1, characterized in that: It is prepared from the following raw materials: Solid-liquid mixture of harmless antibiotic residue: 70-80 parts by volume, Xanthan gum: 2-3 parts by weight, Nitrogen fertilizer: 5-6 parts by weight; The moisture content of the antibiotic bacterial residue composite soil conditioner is 70-85%.
3. The antibiotic bacteria residue composite soil conditioner according to claim 1 or 2, characterized in that: The nitrogen fertilizer is selected from at least one of urea, ammonium sulfate, ammonium nitrate, ammonium chloride, ammonium bicarbonate and calcium nitrate.
4. The method for preparing the antibiotic bacterial residue composite soil conditioner according to any one of claims 1 to 3, characterized in that: The steps include: Step 1: hydrolyzing the antibiotic fermentation broth residue to obtain a harmless antibiotic residue solid-liquid mixture; Step 2: Add xanthan gum into water and stir to obtain a xanthan gum aqueous solution; Step 3: Mix the xanthan gum aqueous solution and the harmless antibiotic residue solid-liquid mixture, and stir to obtain a mixed solution; Step 4: Stir the mixed liquid and nitrogen fertilizer and adjust the moisture content to obtain.
5. The preparation method according to claim 4, characterized in that: In step 1, the hydrolysis temperature is 140-160° C., and the hydrolysis time is 10-20 min; And / or, in step 2, the stirring speed is 300-400r / min; And / or, in step 3, the stirring speed is 200-300 r / min; And / or, in step 4, the stirring speed is 200-300 r / min, and the stirring time is 15-25 min.
6. The preparation method according to claim 4, characterized in that: In step 2, the mass ratio of xanthan gum to water is (2-5):(20-50).
7. The preparation method according to claim 6, characterized in that: The mass ratio of the xanthan gum to water is 2:(20-30).
8. The preparation method according to claim 4, characterized in that: In step 3, the volume ratio of the xanthan gum aqueous solution and the harmless antibiotic bacterial residue solid-liquid mixture is (20-50):(60-100).
9. The preparation method according to claim 8, characterized in that: The volume ratio of the xanthan gum aqueous solution to the harmless antibiotic bacterial residue solid-liquid mixture is (20-40):(70-80).
10. Use of the antibiotic bacterial residue composite soil conditioner according to any one of claims 1 to 3 in the preparation of water-retaining organic fertilizer.