Method for preparing biomass compound liquid organic fertilizer by utilizing agricultural wastes

Abstract

The invention relates to a method for preparing a biomass compound liquid organic fertilizer by using agricultural wastes, which comprises the steps of washing, drying and sieving crop straws, weighing a certain mass of crop straws in a reaction kettle, weighing a certain mass of distilled water and an activating agent in a beaker, uniformly stirring, adding the mixture into a hydrothermal reaction kettle, uniformly mixing with straw powder, placing the reaction kettle in an air dry oven, and carrying out hydrothermal reaction at 150-210 DEG C for 0.5-2.5 hours; and cooling after the reaction is completed, performing suction filtration on substances in the reaction kettle, collecting filtrate, and adjusting the pH value of the filtrate to 6.5-8 to obtain the biomass compound liquid organic fertilizer. The crop wastes are turned into wealth and converted into the biomass compound liquid organic fertilizer which is then applied to the field, the soil keeps good fertility, nutrient requirements can be provided for crops in each growth period in time, and the obtained organic fertilizer is not limited by soil acid-base, can be applied to acidic, alkaline and neutral soil, can reinforce the soil carbon source, and is easy for soil microbial degradation.

Description

technical field

[0001] The invention belongs to the field of high-efficiency resource utilization of agricultural waste and the technical field of agricultural organic fertilizers, and in particular relates to a preparation method and process of high-efficiency resource utilization of agricultural waste and organic fertilizer. Background technique

[0002] my country is a large agricultural country, and the disposal of residues such as crop stalks after harvesting farmland crops has always been a difficult problem in agricultural production. It is often returned to the field for reuse through incineration, crushing, fermenting and retting, etc. However, incineration and returning to the field will cause air pollution, and crushing and returning to the field and fermenting and retting will bring harmful bacteria in the plant into the soil again and affect the healthy growth of crops. Moreover, the straw is not easy to rot and decompose, and it also pollutes the soil environme...

Examples

Example Embodiment

[0048] Example 1:

[0049] (1) The cotton stalks were crushed through 50,100,150,200,250,300 mesh sieve, referred to as sequence No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, taken after sieving 1 to 6 above cotton stalk powder 8.0g were placed in 500mL six hydrothermal reaction vessel, and then take six 500mL beakers, each beaker was added 320g of distilled water, 16 mL of hydrogen peroxide, 32 mL of saturated ammonium acetate solution, 11 mL phosphoric acid, a substance beaker were stirred and uniformly dissolved into 1 to 6 hydrothermal reaction vessel in which the powder mixed with cotton stalk uniform, tightly cover placed in a reaction vessel in the hydrothermal blast oven 200 ℃ 2h, after cooling to room temperature the reaction vessel removed, the kettle contents was suction filtered to collect the filtrate and filter residue. The filter cake in an oven at 60 deg.] C in 12 hours after drying weighed mass. The results show that the 200 mesh sieve No. 4 After the resulting powder...

Example Embodiment

[0050] Example 2:

[0051] 4 parts of pulverized and weighed 200-mesh sieve cotton stalk powder 8.0g were placed in a hydrothermal reaction vessel 4 in 500mL then 500mL beaker take 4 and 320g of distilled water were added to each beaker, 16 mL of hydrogen peroxide , 32 mL of saturated ammonium acetate solution, 11 mL phosphoric acid, beaker substances were uniformly dissolved with stirring into a hydrothermal reaction vessel 4 with cotton stalk powder mixed therein, tightly blast oven lid was placed in water for thermal reaction, the temperature of 1 to 4 hydrothermal reaction kettle were 150 ℃, 170 ℃, 200 ℃ and 210 deg.] C, hydrothermal reaction times were 2h, the reaction was complete after cooling to room temperature, remove the reactor, the reaction material in the autoclave by suction filtration, and the filtrate residue were collected, the filter cake in an oven at 60 deg.] C the mass weighed after drying for 12 hours. The results show that, the hydrothermal reaction tempera...

Example Embodiment

[0052] Example 3

[0053] 6 parts of pulverized and weighed 200-mesh sieve cotton stalk powder 8.0g were placed in 500mL 6 hydrothermal reaction vessel, followed by the six non 500mL beakers, each beaker was added 220g, respectively, 240g, 260g, 280g, 300g, 320g distilled water, and hydrogen peroxide were each added to 16mL beaker, 32 mL ammonium acetate solution, 11 mL phosphoric acid, the beaker were stirred for uniformly dissolved into 6 hydrothermal reaction vessel with which the cotton stalk powder mixed, placed tightly kettle lid 200 ℃ hydrothermal blast oven for 2h, the reaction was complete after cooling to room temperature, remove the reactor, the reaction mass in the autoclave suction filtration, the filtrate was collected and the filter cake, the filter cake 60 deg.] C in an oven dried 12 hours after the weighed mass. The results show that, the hydrothermal reaction in an amount of 260g distilled water, the resulting residue when small suction amount described large amo...

technical field

[0001] The invention belongs to the field of high-efficiency resource utilization of agricultural waste and the technical field of agricultural organic fertilizers, and in particular relates to a preparation method and process of high-efficiency resource utilization of agricultural waste and organic fertilizer. Background technique

[0002] my country is a large agricultural country, and the disposal of residues such as crop stalks after harvesting farmland crops has always been a difficult problem in agricultural production. It is often returned to the field for reuse through incineration, crushing, fermenting and retting, etc. However, incineration and returning to the field will cause air pollution, and crushing and returning to the field and fermenting and retting will bring harmful bacteria in the plant into the soil again and affect the healthy growth of crops. Moreover, the straw is not easy to rot and decompose, and it also pollutes the soil environme...

Examples

Example Embodiment

[0048] Example 1:

[0049] (1) The cotton stalks were crushed through 50,100,150,200,250,300 mesh sieve, referred to as sequence No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, taken after sieving 1 to 6 above cotton stalk powder 8.0g were placed in 500mL six hydrothermal reaction vessel, and then take six 500mL beakers, each beaker was added 320g of distilled water, 16 mL of hydrogen peroxide, 32 mL of saturated ammonium acetate solution, 11 mL phosphoric acid, a substance beaker were stirred and uniformly dissolved into 1 to 6 hydrothermal reaction vessel in which the powder mixed with cotton stalk uniform, tightly cover placed in a reaction vessel in the hydrothermal blast oven 200 ℃ 2h, after cooling to room temperature the reaction vessel removed, the kettle contents was suction filtered to collect the filtrate and filter residue. The filter cake in an oven at 60 deg.] C in 12 hours after drying weighed mass. The results show that the 200 mesh sieve No. 4 After the resulting powder...

Example Embodiment

[0050] Example 2:

[0051] 4 parts of pulverized and weighed 200-mesh sieve cotton stalk powder 8.0g were placed in a hydrothermal reaction vessel 4 in 500mL then 500mL beaker take 4 and 320g of distilled water were added to each beaker, 16 mL of hydrogen peroxide , 32 mL of saturated ammonium acetate solution, 11 mL phosphoric acid, beaker substances were uniformly dissolved with stirring into a hydrothermal reaction vessel 4 with cotton stalk powder mixed therein, tightly blast oven lid was placed in water for thermal reaction, the temperature of 1 to 4 hydrothermal reaction kettle were 150 ℃, 170 ℃, 200 ℃ and 210 deg.] C, hydrothermal reaction times were 2h, the reaction was complete after cooling to room temperature, remove the reactor, the reaction material in the autoclave by suction filtration, and the filtrate residue were collected, the filter cake in an oven at 60 deg.] C the mass weighed after drying for 12 hours. The results show that, the hydrothermal reaction tempera...

Example Embodiment

[0052] Example 3

[0053] 6 parts of pulverized and weighed 200-mesh sieve cotton stalk powder 8.0g were placed in 500mL 6 hydrothermal reaction vessel, followed by the six non 500mL beakers, each beaker was added 220g, respectively, 240g, 260g, 280g, 300g, 320g distilled water, and hydrogen peroxide were each added to 16mL beaker, 32 mL ammonium acetate solution, 11 mL phosphoric acid, the beaker were stirred for uniformly dissolved into 6 hydrothermal reaction vessel with which the cotton stalk powder mixed, placed tightly kettle lid 200 ℃ hydrothermal blast oven for 2h, the reaction was complete after cooling to room temperature, remove the reactor, the reaction mass in the autoclave suction filtration, the filtrate was collected and the filter cake, the filter cake 60 deg.] C in an oven dried 12 hours after the weighed mass. The results show that, the hydrothermal reaction in an amount of 260g distilled water, the resulting residue when small suction amount described large amo...

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