CN-121974759-A - Method for producing efficient organic fertilizer by utilizing kitchen waste

Abstract

The invention discloses a method for producing a high-efficiency organic fertilizer by utilizing kitchen waste, which comprises the following steps of draining the kitchen waste to obtain kitchen waste solids, mixing cotton stalks with the kitchen waste to obtain compost materials, culturing bacillus with a T culture medium to obtain fermentation broth, mixing the fermentation broth with the compost materials, adding water, stirring and fermenting at 60 ℃, adding the kitchen waste for the second time after 12 hours of reaction, adding the kitchen waste for the third time after 24 hours of reaction, and obtaining the high-efficiency organic fertilizer after 36 hours of reaction. The preparation method of the organic fertilizer has the advantages that the treatment period is extremely short, kitchen waste is reduced by 85% in 36 hours, the product after the reaction is finished does not need to be crushed, the organic fertilizer product with the grain diameter of about 100 meshes is automatically generated, the energy is saved, the environment is protected, the treatment efficiency is high, and all indexes of the produced organic fertilizer can meet the agricultural industry standard of the people's republic of China, namely the organic fertilizer, the economic and technical effects are obvious, and the industrial popularization and application are facilitated.

Inventors

• LI FEIXING
• LI WEIZUN
• LIU JING
• CAI JIXIANG
• LI YOUWEN
• Zha Xianghao
• Wei Lianghuan
• LIN NING

Assignees

• 喀什大学

Dates

Publication Date

20260505

Application Date

20251222

Claims (1)

1. 1. A method for producing high-efficiency organic fertilizer by utilizing kitchen waste adopts aerobic dynamic high-temperature fermentation, and comprises the following steps: 1) Draining the kitchen waste to obtain kitchen waste solids; 2) Mixing cotton stalks with kitchen waste in a volume ratio of 1:2 to obtain a compost material; 3) Culturing bacillus for 24 hours at 60 ℃ by using a T culture medium to obtain kitchen waste fermentation broth, wherein the T culture medium is formed by mixing disodium hydrogen phosphate, monopotassium phosphate, ammonium nitrate, ammonium chloride, magnesium sulfate, glucose 10g/L, yeast powder 1.5g/L and deionized water, the concentration of each component in the mixed solution is 4g/L of disodium hydrogen phosphate, 1.2g/L of monopotassium phosphate, 2g/L of ammonium nitrate, 4g/L of ammonium chloride, 0.2g/L of magnesium sulfate, 10g/L of glucose and 1.5g/L of yeast powder, and the pH of the mixed solution is 7.5; 4) Mixing the fermentation broth with compost material at volume ratio of 1 (100-200), adding water and adjusting water content to 50%, stirring at 60deg.C for fermentation, stirring at 10-20rpm for 20min, stopping for 60 min, reversing for 20min, and stopping for 60 min; 5) After reacting for 12 hours, adding kitchen waste with the water content of 70 percent for the second time, wherein the mass ratio of the feeding amount of the kitchen waste to the first composting material is 1 (5-10), and continuously stirring according to the mode; 6) Adding kitchen waste with water content of 70% into the mixture after the reaction for 24 hours, wherein the mass ratio of the kitchen waste to the total amount of the former two materials is 1 (2-4), and continuously stirring in the mode; 7) And (3) timely supplementing water in the reaction process to ensure that the water content of the materials is kept at 50%, and reacting for 36 hours to obtain the efficient organic fertilizer.

Description

Method for producing efficient organic fertilizer by utilizing kitchen waste Technical Field The invention relates to the technical field of organic fertilizer production, in particular to a method for producing efficient organic fertilizer by utilizing kitchen waste. Background In recent years, along with the promotion of the urban process and the improvement of the living standard of residents, the generation amount of kitchen wastes presents an increasing situation. On the one hand, a large amount of kitchen waste needs to occupy a large amount of land resources for landfill, however, percolate generated in the landfill process can cause serious pollution to soil and underground water. On the other hand, although the volume of the kitchen waste can be reduced to a certain extent, harmful gases such as dioxin and the like are generated in the incineration process, and the gases are discharged into the air, so that the air pollution is aggravated, and the health of residents is threatened. In fact, the kitchen waste is not useless, is rich in a large amount of organic matters, proteins, fat, nitrogen, phosphorus, potassium and other nutritional ingredients, and is a potential valuable resource. The method has a plurality of remarkable advantages by adopting an aerobic fermentation technology to convert the organic fertilizer into the organic fertilizer. From the perspective of resource utilization, the cyclic utilization of resources is realized, and the waste of the resources is effectively reduced. From the aspect of environmental protection, the environmental pollution caused by kitchen waste can be greatly reduced, the negative influence caused by the traditional treatment mode is reduced, and the ecological environment protection and sustainable development are facilitated. In addition, the produced organic fertilizer is rich in nitrogen, phosphorus, potassium and other elements, and can effectively improve the soil structure and improve the soil fertility. According to agricultural experiments, the farmland using the organic fertilizer has the advantages that the crop yield is improved by 10% -15% on average, the quality of agricultural products is also improved obviously, and the green and sustainable development of agriculture is promoted powerfully. Disclosure of Invention The invention aims to solve the problems and provide a method for producing a high-efficiency organic fertilizer by utilizing kitchen waste, which utilizes high-temperature-resistant microorganisms to treat the kitchen waste, ensures that the kitchen waste is quickly converted in an aerobic fermentation process with sufficient oxygen, and has short treatment period and high efficiency. The technical scheme of the invention is as follows: A method for producing efficient organic fertilizer by utilizing kitchen waste comprises the following steps: 1) Dehydrating the kitchen waste to form kitchen waste solids; 2) Mixing cotton stalks with kitchen waste in a volume ratio of 1:2 to obtain a compost material; 3) Culturing bacillus at 60deg.C for 24 hr to obtain 5-6× 10 CFU/g The kitchen waste fermentation broth is formed by mixing disodium hydrogen phosphate, potassium dihydrogen phosphate, ammonium nitrate, ammonium chloride, magnesium sulfate, 10g/L glucose, 1.5g/L yeast powder and deionized water, wherein the concentration of each component in the mixed broth is 4g/L disodium hydrogen phosphate, 1.2g/L potassium dihydrogen phosphate, 2g/L ammonium nitrate, 4g/L ammonium chloride, 0.2g/L magnesium sulfate, 10g/L glucose, 1.5g/L yeast powder, and the pH value of the mixed broth is 7.5; 4) Mixing the fermentation broth with compost material at volume ratio of 1 (100-200), adding water and adjusting water content to 50%, stirring at 60deg.C for fermentation, stirring at 10-20rpm for 20min, stopping for 60 min, reversing for 20min, and stopping for 60 min; 5) After reacting for 12 hours, adding kitchen waste solids for the second time, wherein the mass ratio of the kitchen waste feeding amount to the first composting material is 1 (5-10), and continuously stirring according to the mode; 6) Adding kitchen waste solids into the mixture after the reaction for 24 hours, wherein the mass ratio of the kitchen waste to the total amount of the materials in the first two times is 1 (2-4), and continuously stirring the mixture according to the mode; 7) And (3) timely supplementing water in the reaction process to ensure that the water content of the materials is kept at 50%, and reacting for 36 hours to obtain the efficient organic fertilizer with the organic matter content of 70-90%. The invention has the advantages and beneficial effects that: The preparation method of the organic fertilizer has the advantages that the treatment period is extremely short, the kitchen waste is reduced by 85% within 36 hours and is completely converted into the organic fertilizer, the organic fertilizer with the grain diameter of about 100 meshes is automatically