CN110835281A - Multifunctional soil conditioner for agriculture and forestry - Google Patents
Multifunctional soil conditioner for agriculture and forestry Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
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- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
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- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
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Abstract
The invention discloses a multifunctional soil conditioner for agriculture and forestry, which comprises the following raw materials: pulp suspension, mixed reaction liquid, TEMPO catalytic oxidation cellulose, modified cellulose, mixed liquid and activated sludge composite material; the ecological safety problem of the water-retaining agent or the soil conditioner for agriculture and forestry is solved, and the raw material source of the soil conditioner is green and environment-friendly, is non-toxic and harmless, and can efficiently absorb water and retain water; the defect that other water-retaining agents or soil conditioners for agriculture and forestry have great difference in water absorption rate of deionized water and saline water is overcome, and the effective water absorption and retention performance of the product in a real soil environment is guaranteed; the composite activated sludge and the inorganic fertilizer solve the defect of single effect of other water retention agents or soil conditioners for agriculture and forestry, provide continuous nutrient supply for plant growth besides water absorption and retention, and continuously supply nutrients and regulate the soil microbial environment.
Description
Technical Field
The invention relates to the technical field of soil conditioners for agriculture and forestry, in particular to a multifunctional soil conditioner for agriculture and forestry.
Background
Water and soil resources are the foundation on which human beings live and develop. How to effectively improve soil fertility, water retention, improve the soil environment such as physical, chemical and microorganism of degradation, overcome the adverse effect on plant growth such as drought, saline-alkali, barren, have important meaning to agricultural development and human living environment, cross-linked acrylic acid, acrylonitrile, ethylene oxide, and different types of super absorbent material such as starch, cellulose, hemicellulose and other animal and plant polysaccharide graft acrylic acid, acrylonitrile, acrylamide, acrylate, etc., this kind of super absorbent material can absorb and keep the water of dead weight to several thousand times, this excellent ability of absorbing water and retaining water makes its use widely in agriculture and forestry, however, the water absorbing and retaining material for agriculture and forestry of present mainstream often faces the following defects: 1. common acrylonitrile, acrylamide and acrylic acid water-absorbing and water-retaining agents face severe ecological environment challenges such as toxic residual monomers and degraded monomers in products and difficult degradation of soil microorganisms; 2. the high water absorption rate of the high water absorption material is usually the water absorption rate of deionized water, and the salt water absorption rate of the high water absorption material is only one tenth or even lower than that of the deionized water, so that the application of the high water absorption material in the occasions of drought resistance and water retention, wind prevention and sand fixation, water and soil conservation and the like of agriculture and forestry is severely limited, and the production of the synthesized high polymer water absorption and water retention agent depends on increasingly deficient petroleum resources, and does not meet the development requirements of green social economy and environment; 3. generally, the multifunctional soil conditioner only has the water absorption and retention effects and lacks the effects of plant nutrient supply, growth promotion, soil physicochemical and microbial environment conditioning and the like, and the multifunctional soil conditioner for agriculture and forestry is provided.
Disclosure of Invention
The invention aims to provide a multifunctional soil conditioner for agriculture and forestry, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a multifunctional soil conditioner for agriculture and forestry comprises the following raw materials: the composite material comprises a paper pulp suspension, a mixed reaction solution, TEMPO catalytic oxidation cellulose, modified cellulose, a mixed solution and an activated sludge composite material.
As further preferable in the present technical solution: the pulp suspension comprises the following raw materials: cellulose fiber: 1 kg, distilled water: 80 liters; the preparation method of the pulp suspension comprises the following steps: stirring and dispersing cellulose fibers in distilled water, and uniformly stirring to obtain a pulp suspension; the raw material proportion of the cellulose fiber is as follows: 1 kg of distilled water, and the raw material ratio of the distilled water is as follows: 80 liters.
As further preferable in the present technical solution: the mixed reaction liquid comprises the following raw materials: 2,2,6, 6-tetramethylpiperidine-1-oxide: 10-20 g, sodium bromide: 50-100 g of distilled water and 20 liters of distilled water; the preparation method of the mixed reaction liquid comprises the following steps: dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 10-20 g, and the sodium bromide is prepared from the following raw materials in percentage by weight: 50-100 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters.
As further preferable in the present technical solution: the TEMPO catalytic oxidation cellulose comprises the following raw materials: pulp suspension, mixing reaction liquid, and dropwise adding 10% sodium hydroxide by a metering pump: 4-7 liters, and dropwise adding a 10% sodium hypochlorite solution by a metering pump: 5-7 liters; the preparation method of the TEMPO catalytic oxidation cellulose comprises the following steps: stirring the prepared mixed paper pulp suspension and mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH of a mixed system to 10.0-10.5, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH of the reaction system to 10.0, stirring and reacting at room temperature for 3-6 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution comprises the following raw materials in proportion: 4-7 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5-7 liters.
As further preferable in the present technical solution: the modified cellulose comprises the following raw materials: TEMPO catalyzed oxidation of cellulose, sodium hydroxide solution: 150 ml-20%, carbon disulfide: 200-; the preparation method of the modified cellulose comprises the following steps: soaking TEMPO catalytic oxidation cellulose into a sodium hydroxide solution for treatment for 1-3 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1-2 hours, adjusting the pH value to be neutral, and drying to obtain modified cellulose; sodium hydroxide solution: 150-200 ml of carbon disulfide, wherein the raw material ratio of the carbon disulfide is as follows: 200 and 400 ml.
As further preferable in the present technical solution: the mixed solution comprises the following raw materials: modified cellulose, activated sludge: 200-400 g, inorganic nitrogen fertilizer: 100-200 g, inorganic phosphate fertilizer: 50-100 g, inorganic potash fertilizer: 50-100 g; the preparation method of the mixed solution comprises the following steps: uniformly mixing modified cellulose, activated sludge, an inorganic nitrogenous fertilizer, an inorganic phosphate fertilizer and an inorganic potash fertilizer to prepare a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in percentage by weight: 100-200 g, and the inorganic phosphate fertilizer comprises the following raw materials in percentage by weight: 50-100 g of inorganic potash fertilizer, and the raw material ratio of the inorganic potash fertilizer is as follows: 50-100 g of activated sludge, and the raw material ratio of the activated sludge is as follows: 300 g.
As further preferable in the present technical solution: the activated sludge composite material comprises the following raw materials: mixed liquor, polyether polyol: 100-300 g, glycerol: 5-10 g, catalyst: 5-10 g, foaming agent: 3-5 g, water: 1-5 l, toluene diisocyanate: 200 g; the preparation method of the activated sludge composite material comprises the following steps: stirring the prepared mixed solution with polyether polyol, glycerol, a catalyst, a foaming agent and water at a high speed for foaming, controlling the foaming volume to be 20-50 times, adding toluene diisocyanate, stirring and mixing at a high speed for 15-20 seconds, standing and curing at room temperature for 1-2 hours, and curing and drying at 80 ℃ for 3 hours to prepare the soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 100-300 g, the raw material proportion of the glycerol is as follows: 5-10 g, and the catalyst comprises the following raw materials in percentage by weight: 5-10 g, and the foaming agent comprises the following raw materials in percentage by weight: 3-5 g, the raw material proportion of water is as follows: 1-5 liters, and the toluene diisocyanate comprises the following raw materials in percentage by weight: 200 g.
Compared with the prior art, the invention has the beneficial effects that:
the invention completely adopts the natural polymer material which can be completely biodegraded as the raw material, solves the problem of ecological safety of the water retention agent or the soil amendment for agriculture and forestry, has green and environment-friendly raw material source, no toxicity and harm, and high-efficiency water absorption and retention, and can play multiple functions of drought resistance, seedling protection, yield increase, income increase, soil improvement, wind prevention, sand fixation, water and soil conservation and the like in the fields of agriculture, forestry, water conservancy and the like;
the defect that the water absorption rates of other agricultural and forestry water-retaining agents or soil conditioners to deionized water and saline water are greatly different is overcome, and the effective water absorption and retention performance of the product in a real soil environment is guaranteed;
thirdly, the defect that other water retention agents or soil improvement agents for agriculture and forestry have single effect is overcome through the composite activated sludge and the inorganic fertilizer, besides water absorption and retention, continuous nutrient supply is provided for plant growth, and the nutrient is continuously supplied and the soil microbial environment is adjusted.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to data in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a technical scheme that: a multifunctional soil conditioner for agriculture and forestry comprises the following raw materials: pulp suspension, mixed reaction liquid, TEMPO catalytic oxidation cellulose, modified cellulose, mixed liquid and activated sludge composite material; the pulp suspension comprises the following raw materials: cellulose fiber: 1 kg, distilled water: 80 liters; the method for preparing the pulp suspension comprises the following steps: cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kg, and the distilled water comprises the following raw materials in percentage by weight: 80 liters; the mixed reaction liquid comprises the following raw materials: 2,2,6, 6-tetramethylpiperidine-1-oxide: 10 g, sodium bromide: 50 g of distilled water, 20L of distilled water; the preparation method of the mixed reaction liquid comprises the following steps: dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 10 g, and the mixture ratio of the raw materials of sodium bromide is as follows: 50 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters; the TEMPO catalytic oxidation of cellulose comprises the following raw materials: pulp suspension, mixing reaction liquid, and dropwise adding 10% sodium hydroxide by a metering pump: 4 l, a metering pump dropwise adds a 10% sodium hypochlorite solution: 5 liters; the preparation method of the TEMPO catalytic oxidation cellulose comprises the following steps: stirring the prepared mixed paper pulp suspension and mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH value of a mixed system to 10.0, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH value of the reaction system to 10.0, stirring and reacting at room temperature for 3 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the raw material ratio of the sodium hydroxide solution is as follows: 4 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5 liters; the modified cellulose comprises the following raw materials: TEMPO catalyzed oxidation of cellulose, sodium hydroxide solution: 150 ml, carbon disulfide: 200 ml; the preparation method of the modified cellulose comprises the following steps: soaking TEMPO catalytic oxidation cellulose into a sodium hydroxide solution for treatment for 1 hour, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1 hour, adjusting the pH value to be neutral, and drying to obtain modified cellulose; sodium hydroxide solution: 150 ml, and the raw material ratio of the carbon disulfide is as follows: 200 ml; the mixed liquid comprises the following raw materials: modified cellulose, activated sludge: 200 g, inorganic nitrogen fertilizer (urea, ammonium chloride, ammonium carbonate): 100 g, inorganic phosphate fertilizer (calcium superphosphate, potassium dihydrogen): 50 g, inorganic potassium fertilizer (potassium sulfate, potassium chloride): 50 g; the preparation method of the mixed solution comprises the following steps: uniformly mixing modified cellulose, activated sludge, inorganic nitrogen fertilizer (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizer (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizer (potassium sulfate and potassium chloride) to obtain a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in percentage by weight: 100 g of inorganic phosphate fertilizer, and the raw material ratio of the inorganic phosphate fertilizer is as follows: 50 g of inorganic potash fertilizer, and the raw material ratio is as follows: 50 g, the active sludge comprises the following raw materials in percentage by weight: 300 g; the activated sludge composite material comprises the following raw materials: mixed liquor, polyether polyol: 100 g, glycerol: 5 g, catalyst (stannous octoate): 5 g, foaming agent (nekal): 3 g, water: 1 liter, toluene diisocyanate: 200 g; the preparation method of the activated sludge composite material comprises the following steps: mixing the prepared mixed solution with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal) and water, stirring at a high speed to foam, controlling the foaming volume to be 20 times, adding toluene diisocyanate, stirring at a high speed and mixing for 15 seconds, standing and curing at room temperature for 1 hour, and curing and drying at 80 ℃ for 3 hours to obtain a soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 100 g, the raw material ratio of the glycerol is as follows: 5 g, and the catalyst comprises the following raw materials in percentage by weight: 5 g, and the foaming agent comprises the following raw materials in percentage by weight: 3 g, and the raw material ratio of water is as follows: 1 liter, and the raw material ratio of toluene diisocyanate is as follows: 200 g.
The preparation method of the multifunctional soil conditioner for agriculture and forestry comprises the following steps:
step one, cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kg of distilled water, and the raw material ratio of the distilled water is as follows: 80 liters;
dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 10 g, and the mixture ratio of the raw materials of sodium bromide is as follows: 60 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters;
stirring and mixing the pulp suspension and the mixed reaction solution, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH value of the mixed system to 10.0, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH value of the reaction system to 10.0, stirring and reacting at room temperature for 3 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution comprises the following raw materials in proportion: 5 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5 liters;
step four, soaking TEMPO catalytic oxidation cellulose prepared in the step three into a sodium hydroxide solution for treatment for 1 hour, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1 hour, adjusting the pH value to be neutral, and drying to prepare modified cellulose; the sodium hydroxide solution comprises the following raw materials in percentage by weight: 160 ml of carbon disulfide, and the raw material ratio of the carbon disulfide is as follows: 200 ml;
step five, uniformly mixing the modified cellulose prepared in the step three with activated sludge, inorganic nitrogen fertilizers (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizers (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizers (potassium sulfate and potassium chloride) to prepare a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in percentage by weight: 100 g of inorganic phosphate fertilizer, and the raw material ratio of the inorganic phosphate fertilizer is as follows: 50 g of inorganic potash fertilizer, and the raw material ratio is as follows: 50 g, the raw material ratio of the activated sludge is as follows: 300 g;
sixthly, mixing the mixed solution prepared in the fifth step with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal), and water, stirring at a high speed for foaming, controlling the foaming volume to be 20 times, adding toluene diisocyanate, stirring and mixing at a high speed for 15 seconds, standing and curing at room temperature for 1 hour, and curing and drying at 80 ℃ for 3 hours to prepare the soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 100 g, the raw material ratio of the glycerol is as follows: 5 g, and the catalyst comprises the following raw materials in percentage by weight: 5 g, and the foaming agent comprises the following raw materials in percentage by weight: 3 g, and the raw material ratio of water is as follows: 1 liter, and the raw material ratio of toluene diisocyanate is as follows: 200 g.
Example 2
The invention provides a technical scheme that: a multifunctional soil conditioner for agriculture and forestry comprises the following raw materials: the modified cellulose paper comprises a paper pulp suspension, a mixed reaction solution, TEMPO catalytic oxidation cellulose, modified cellulose, a mixed solution and an activated sludge composite material; the pulp suspension comprises the following raw materials: cellulose fiber: 1 kg, distilled water: 80 liters, the pulp suspension preparation method is: cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kilogram, and the raw material ratio of the distilled water is as follows: 80 liters; the mixed reaction liquid comprises the following raw materials: 2,2,6, 6-tetramethylpiperidine-1-oxide: 20 g, sodium bromide: 100 g of distilled water and 20 liters of distilled water, and the preparation method of the mixed reaction solution comprises the following steps: dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 20 g, and the mixture ratio of the sodium bromide is as follows: 100 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters; the TEMPO catalytic oxidation of cellulose comprises the following raw materials: pulp suspension, mixed reaction solution, metering pump dropping 10% sodium hydroxide 4L, metering pump dropping 10% sodium hypochlorite solution: 7L, the preparation method of the TEMPO catalytic oxidation cellulose comprises the following steps: stirring the prepared mixed paper pulp suspension and mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH of a mixed system to 10.0, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH of the reaction system to 10.0, stirring and reacting at room temperature for 6 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution is prepared from the following raw materials in percentage by weight: 4 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 7 liters; the modified cellulose comprises the following raw materials: TEMPO catalyzed oxidation of cellulose, sodium hydroxide solution: 200 ml, carbon disulfide: 400 ml, the preparation method of the modified cellulose comprises the following steps: soaking TEMPO catalytic oxidation cellulose into a sodium hydroxide solution for treatment for 3 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 2 hours, adjusting the pH value to be neutral, and drying to obtain modified cellulose; sodium hydroxide solution: 200 ml, and the raw material ratio of the carbon disulfide is as follows: 400 ml; the mixed solution comprises the following raw materials: modified cellulose, activated sludge: 300 g, inorganic nitrogen fertilizer (urea, ammonium chloride, ammonium carbonate): 200 g, inorganic phosphate fertilizer (calcium superphosphate, potassium dihydrogen): 100 g, inorganic potash fertilizer (potassium sulfate, potassium chloride): 100 g, the preparation method of the mixed solution comprises the following steps: uniformly mixing modified cellulose, activated sludge, inorganic nitrogen fertilizer (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizer (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizer (potassium sulfate and potassium chloride) to obtain a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in proportion: 200 g, and the inorganic phosphate fertilizer comprises the following raw materials in percentage by weight: 100 g of inorganic potash fertilizer, and the raw material ratio is as follows: 100 g, the active sludge comprises the following raw materials in percentage by weight: 300 g; the activated sludge composite material comprises the following raw materials: mixed liquid, polyether polyol: 300 g, glycerol: 10 g, catalyst: 10 g, foaming agent: 5 g, water: 5 l, toluene diisocyanate: 200 g, the preparation method of the activated sludge composite material comprises the following steps: mixing the prepared mixed solution with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal) and water, stirring at a high speed to foam, controlling the foaming volume to be 50 times, adding toluene diisocyanate, stirring at a high speed and mixing for 20 seconds, standing and curing at room temperature for 2 hours, and curing and drying at 80 ℃ for 3 hours to prepare a soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 00 g, and the raw material ratio of the glycerol is as follows: 10 g, and the catalyst comprises the following raw materials in percentage by weight: 10 g, and the foaming agent comprises the following raw materials in percentage by weight: 5 g, the raw material ratio of water is: 5 liters, and the raw material ratio of the toluene diisocyanate is as follows: 200 g.
The preparation method of the multifunctional soil conditioner for agriculture and forestry comprises the following steps:
step one, cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kg of distilled water, and the raw material ratio of the distilled water is as follows: 80 liters;
dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 20 g, and the mixture ratio of the sodium bromide is as follows: 100 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters;
stirring and mixing the paper pulp suspension and the mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH value of a mixed system to 10.5, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH value of the reaction system to 10.0, stirring and reacting at room temperature for 6 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution comprises the following raw materials in percentage by weight: 4 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 7 liters;
step four, soaking TEMPO catalytic oxidation cellulose prepared in the step three into a sodium hydroxide solution for treatment for 3 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 2 hours, adjusting the pH value to be neutral, and drying to prepare modified cellulose; the sodium hydroxide solution comprises the following raw materials in percentage by weight: 200 ml, and the raw material ratio of the carbon disulfide is as follows: 400 ml;
step five, uniformly mixing the modified cellulose prepared in the step three with activated sludge, inorganic nitrogen fertilizers (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizers (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizers (potassium sulfate and potassium chloride) to prepare a mixed solution; the inorganic nitrogen fertilizer (urea, ammonium chloride and ammonium carbonate) comprises the following raw materials in percentage by weight: 200 g, and the inorganic phosphate fertilizer comprises the following raw materials in percentage by weight: 100 g of inorganic potash fertilizer, and the raw material proportion is as follows: 100 g, the active sludge comprises the following raw materials in percentage by weight: 300 g;
sixthly, mixing the mixed solution prepared in the fifth step with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal), and water, stirring at a high speed for foaming, controlling the foaming volume to be 50 times, adding toluene diisocyanate, stirring and mixing at a high speed for 20 seconds, standing and curing at room temperature for 2 hours, curing at 80 ℃ and drying for 3 hours to prepare the soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 300 g, and the raw material ratio of the glycerol is as follows: 10 g, and the catalyst comprises the following raw materials in percentage by weight: 10 g, and the foaming agent comprises the following raw materials in percentage by weight: 5 g, the raw material ratio of water is: 5 liters, and the raw material ratio of the toluene diisocyanate is as follows: 200 g.
Example 3
The invention provides a technical scheme that: a multifunctional soil conditioner for agriculture and forestry comprises the following raw materials: the modified cellulose paper comprises a paper pulp suspension, a mixed reaction solution, TEMPO catalytic oxidation cellulose, modified cellulose, a mixed solution and an activated sludge composite material; the pulp suspension comprises the following raw materials: cellulose fiber: 1 kg, distilled water: 80 liters, the pulp suspension preparation method is: cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kilogram, and the raw material ratio of the distilled water is as follows: 80 liters; the mixed reaction liquid comprises the following raw materials: 2,2,6, 6-tetramethylpiperidine-1-oxide: 15 g, sodium bromide: 55 g of distilled water and 20L of distilled water, and the preparation method of the mixed reaction solution comprises the following steps: dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 12 g, and the mixture ratio of the sodium bromide raw materials is as follows: 55 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters; the TEMPO catalytic oxidation cellulose comprises the following raw materials: pulp suspension, mixing reaction liquid, and dropwise adding 10% sodium hydroxide by a metering pump: 5L, a metering pump drops a 10% sodium hypochlorite solution: 6L, the preparation method of the TEMPO catalytic oxidation cellulose comprises the following steps: stirring the prepared mixed paper pulp suspension and mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH of the mixed system to 10.0, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH of the reaction system to 10.0, stirring and reacting at room temperature for 5 hours, performing suction filtration, washing with tap water for 3 times, collecting and preparing TEMPO catalytic oxidation cellulose, wherein the raw material ratio of the sodium hydroxide solution is as follows: 6 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5 liters; the modified cellulose comprises the following raw materials: TEMPO catalyzed oxidation of cellulose, sodium hydroxide solution: 200 ml, carbon disulfide: 300 ml, the preparation method of the modified cellulose comprises the following steps: soaking TEMPO catalyzed and oxidized cellulose into a sodium hydroxide solution for treatment for 2 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1.5 hours, adjusting the pH value to be neutral, and drying to obtain modified cellulose; sodium hydroxide solution: 200 ml, and the raw material ratio of the carbon disulfide is as follows: 300 ml; the mixed solution comprises the following raw materials: modified cellulose, activated sludge: 300 g, inorganic nitrogen fertilizer (urea, ammonium chloride, ammonium carbonate): 160 g, inorganic phosphate fertilizer (calcium superphosphate, potassium dihydrogen): 70 g, inorganic potassium fertilizer (potassium sulfate, potassium chloride): 60 g, the preparation method of the mixed solution is as follows: uniformly mixing modified cellulose, activated sludge, inorganic nitrogen fertilizer (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizer (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizer (potassium sulfate and potassium chloride) to obtain a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in proportion: 160 g, and the raw material ratio of the inorganic phosphate fertilizer is as follows: 70 g, and the inorganic potash fertilizer comprises the following raw materials in percentage by weight: 60 g, the active sludge comprises the following raw materials in percentage by weight: 300 g; the activated sludge composite material comprises the following raw materials: mixed liquid, polyether polyol: 220 g, glycerol: 7 g, catalyst (stannous octoate): 8 g, foaming agent (nekal): 4 g, water: 3 l, toluene diisocyanate: 200 g, the preparation method of the activated sludge composite material comprises the following steps: mixing the prepared mixed solution with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal) and water, stirring at a high speed to foam, controlling the foaming volume to be 30 times, adding toluene diisocyanate, stirring at a high speed and mixing for 15 seconds, standing and curing at room temperature for 1.5 hours, curing at 80 ℃ and drying for 3 hours to prepare the soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 200 g, the raw material proportion of the glycerol is as follows: 7 g, and the catalyst comprises the following raw materials in percentage by weight: 8 g, and the foaming agent comprises the following raw materials in percentage by weight: 4 g, the raw material ratio of water is: 3 liters, and the raw material ratio of the toluene diisocyanate is as follows: 200 g.
The preparation method of the multifunctional soil conditioner for agriculture and forestry comprises the following steps:
step one, cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kg of distilled water, and the raw material ratio of the distilled water is as follows: 80 liters;
dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 15 g, and the mixture ratio of the sodium bromide is as follows: 55 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters;
stirring and mixing the paper pulp suspension and the mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH value of a mixed system to 10.3, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH value of the reaction system to 10.0, stirring and reacting at room temperature for 5 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution comprises the following raw materials in percentage by weight: 6 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5 liters;
step four, soaking TEMPO catalytic oxidation cellulose prepared in the step three into a sodium hydroxide solution for treatment for 2 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1.5 hours, adjusting the pH value to be neutral, and drying to prepare modified cellulose; the sodium hydroxide solution comprises the following raw materials in percentage by weight: 200 ml, and the raw material ratio of the carbon disulfide is as follows: 300 ml;
step five, uniformly mixing the modified cellulose prepared in the step three with activated sludge, inorganic nitrogen fertilizers (urea, ammonium chloride and ammonium carbonate), inorganic phosphate fertilizers (calcium superphosphate and potassium dihydrogen), and inorganic potassium fertilizers (potassium sulfate and potassium chloride) to prepare a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in percentage by weight: 160 g, and the raw material ratio of the inorganic phosphate fertilizer is as follows: 70 g, and the inorganic potash fertilizer comprises the following raw materials in percentage by weight: 60 g, the raw material proportion of the activated sludge is as follows: 300 g;
sixthly, mixing the mixed solution prepared in the fifth step with polyether polyol, glycerol, a catalyst (stannous octoate), a foaming agent (nekal), and water, stirring at a high speed for foaming, controlling the foaming volume to be 30 times, adding toluene diisocyanate, stirring at a high speed for mixing for 15 seconds, standing and curing at room temperature for 1.5 hours, and curing and drying at 80 ℃ for 3 hours to prepare the soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 200 g, and the glycerin comprises the following raw materials in percentage by weight: 7 g, and the catalyst comprises the following raw materials in percentage by weight: 8 g, and the foaming agent comprises the following raw materials in percentage by weight: 4 g, the raw material ratio of water is: 3 liters, and the raw material ratio of the toluene diisocyanate is as follows: 200 g.
Table 1 shows the density and water absorption of the multifunctional soil conditioner prepared in examples 1-3.
Table 1:
as can be seen from the data in Table 1, the soil conditioner has lower density, higher water absorption rates of deionized water and saline water and no obvious difference.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The multifunctional soil conditioner for agriculture and forestry is characterized by comprising the following raw materials: the composite material comprises a paper pulp suspension, a mixed reaction solution, TEMPO catalytic oxidation cellulose, modified cellulose, a mixed solution and an activated sludge composite material.
2. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the pulp suspension comprises the following raw materials: cellulose fiber: 1 kg, distilled water: 80 liters; the preparation method of the pulp suspension comprises the following steps: cellulose fibers are stirred and dispersed in distilled water and are stirred uniformly to prepare a paper pulp suspension; the cellulose fiber comprises the following raw materials in percentage by weight: 1 kg of distilled water, and the raw material ratio of the distilled water is as follows: 80 liters.
3. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the mixed reaction liquid comprises the following raw materials: 2,2,6, 6-tetramethylpiperidine-1-oxide: 10-20 g, sodium bromide: 50-100 g of distilled water and 20 liters of distilled water; the preparation method of the mixed reaction liquid comprises the following steps: dissolving 2,2,6, 6-tetramethylpiperidine-1-oxide and sodium bromide in distilled water to prepare a mixed reaction solution; the raw material ratio of the 2,2,6, 6-tetramethyl piperidine-1-oxide is as follows: 10-20 g, and the sodium bromide is prepared from the following raw materials in percentage by weight: 50-100 g of distilled water, and the raw material ratio of the distilled water is as follows: 20 liters.
4. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the TEMPO catalytic oxidation cellulose comprises the following raw materials: pulp suspension, mixing reaction liquid, and dropwise adding 10% sodium hydroxide by a metering pump: 4-7 liters, and dropwise adding a 10% sodium hypochlorite solution by a metering pump: 5-7 liters; the preparation method of the TEMPO catalytic oxidation cellulose comprises the following steps: stirring the prepared mixed paper pulp suspension and mixed reaction liquid, dropwise adding 10% sodium hydroxide into a metering pump to adjust the pH of a mixed system to 10.0-10.5, dropwise adding 10% sodium hypochlorite solution into the metering pump to adjust and maintain the pH of the reaction system to 10.0, stirring and reacting at room temperature for 3-6 hours, performing suction filtration, washing with tap water for 3 times, and collecting and preparing TEMPO catalytic oxidation cellulose, wherein the sodium hydroxide solution comprises the following raw materials in proportion: 4-7 liters, and the sodium hypochlorite solution comprises the following raw materials in percentage by weight: 5-7 liters.
5. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the modified cellulose comprises the following raw materials: TEMPO catalyzed oxidation of cellulose, sodium hydroxide solution: 150 ml-20%, carbon disulfide: 200-; the preparation method of the modified cellulose comprises the following steps: soaking TEMPO catalytic oxidation cellulose into a sodium hydroxide solution for treatment for 1-3 hours, filtering to remove alkali liquor, collecting a cellulose filter cake, loosening and dispersing, adding carbon disulfide, stirring at room temperature for reaction for 1-2 hours, adjusting the pH value to be neutral, and drying to obtain modified cellulose; sodium hydroxide solution: 150-200 ml of carbon disulfide, wherein the raw material ratio of the carbon disulfide is as follows: 200 and 400 ml.
6. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the mixed solution comprises the following raw materials: modified cellulose, activated sludge: 200-400 g, inorganic nitrogen fertilizer: 100-200 g, inorganic phosphate fertilizer: 50-100 g, inorganic potash fertilizer: 50-100 g; the preparation method of the mixed solution comprises the following steps: uniformly mixing modified cellulose, activated sludge, an inorganic nitrogenous fertilizer, an inorganic phosphate fertilizer and an inorganic potash fertilizer to prepare a mixed solution; the inorganic nitrogen fertilizer comprises the following raw materials in percentage by weight: 100-200 g, and the inorganic phosphate fertilizer comprises the following raw materials in percentage by weight: 50-100 g of inorganic potash fertilizer, and the raw material ratio of the inorganic potash fertilizer is as follows: 50-100 g of activated sludge, and the raw material ratio of the activated sludge is as follows: 300 g.
7. The multifunctional soil conditioner for agriculture and forestry as claimed in claim 1, wherein: the activated sludge composite material comprises the following raw materials: mixed liquor, polyether polyol: 100-300 g, glycerol: 5-10 g, catalyst: 5-10 g, foaming agent: 3-5 g, water: 1-5 l, toluene diisocyanate: 200 g; the preparation method of the activated sludge composite material comprises the following steps: stirring the prepared mixed solution with polyether polyol, glycerol, a catalyst, a foaming agent and water at a high speed for foaming, controlling the foaming volume to be 20-50 times, adding toluene diisocyanate, stirring and mixing at a high speed for 15-20 seconds, standing and curing at room temperature for 1-2 hours, and curing and drying at 80 ℃ for 3 hours to prepare a soil conditioner; the polyether polyol comprises the following raw materials in percentage by weight: 100-300 g, the raw material proportion of the glycerol is as follows: 5-10 g, and the catalyst comprises the following raw materials in percentage by weight: 5-10 g, and the foaming agent comprises the following raw materials in percentage by weight: 3-5 g, and the water comprises the following raw materials in percentage by weight: 1-5 liters, and the toluene diisocyanate comprises the following raw materials in percentage by weight: 200 g.
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