Chicken manure liquid fertilizer and processing technology thereof

Abstract

The invention discloses a chicken manure liquid fertilizer and a processing technology thereof. The processing technology comprises the following steps: stirring and mixing fresh chicken manure and a culture solution; carrying out solid-liquid separation on the obtained mixture of the fresh chicken manure and the culture solution; carrying out emulsification treatment on the obtained liquid material; sequentially sieving the emulsified liquid material with a 60-mesh sieve and a 80-mesh sieve to obtain an undersize product and an oversize product; standing and fermenting the obtained screen underflow, and then stirring and mixing with auxiliary materials; and emulsifying the obtained mixture to obtain the liquid fertilizer. In the processing process of the chicken manure liquid fertilizer, amino acid liquid and chicken manure are uniformly mixed through mixing and stirring, so that the fermentation efficiency is improved; in the fermentation process, the activity of microorganisms generates a large amount of heat, harmful organisms such as bacteria, viruses and parasitic ova in the excrement can be effectively killed, and the death rate of roundworm ova in a finished product is higher than 98% through inspection.

Description

Technical Field

[0001] The invention belongs to the technical field of organic and inorganic liquid fertilizer processing, and in particular relates to chicken manure liquid fertilizer and a processing technology thereof. Background Art

[0002] Chemical fertilizers can provide rich nutrients for crops and promote good growth and high yield of crops. However, the large-scale and large-scale application of chemical fertilizers also brings some negative effects, such as chemical fertilizers destroying the organic matter components of the soil, causing soil compaction, soil fertility decline, environmental pollution, and crop quality decline. At present, most of my country's soil fertility is on a downward trend. How to maintain the land and benefit future generations has become an urgent issue. From the current development status of my country's agriculture, organic fertilizers and chemical fertilizers should be used in combination. On the premise of increasing the application of biological organic fertilizers, the use of chemical fertilizers should be reduced by 20% to 30%, thereby increasing soil vitality, improving product quality, and reducing environmental pollution.

[0003] Livestock and poultry manure is a traditional organic fertilizer in my country. It has complete nutrients and high organic matter content. Appropriate application can not only improve the soil, but also improve the quality and yield of agricultural products. Due to the long-term and large-scale use of chemical fertilizers in agricultural production, the organic matter content of the soil has been decreasing, the soil has become compacted, nutrients have been lost, the water and fertilizer retention performance has declined, and the pollution of the soil has become increasingly serious. The resistance of agricultural pests has been continuously enhanced, which has become one of the important factors restricting the development of my country's "three highs" agriculture.

[0004] The traditional chicken manure processing method is to make finished products through normal drying, turning, natural fermentation, drying, granulation and other processes. The disadvantages of such solid fertilizers are: long fermentation time, great environmental pollution, and insufficient fermentation, easy to burn seedlings, containing pathogens and parasites; in actual use, it can only be used as base fertilizer, with low utilization rate, slow fertilization effect and uneven fertilization. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention aims to provide a chicken manure liquid fertilizer and a processing technology thereof.

[0006] The specific technical solutions of the present invention are as follows:

[0007] The present invention provides a processing technology for chicken manure liquid fertilizer, comprising the following steps:

[0008] (1) stirring and mixing fresh chicken manure and culture solution to obtain a mixture of fresh chicken manure and culture solution, wherein the culture solution consists of the following components by mass percentage: 4% to 5% amino acids, 15% to 18% organic matter, 4% to 5% total nitrogen, 3% to 4% sulfur, 1% to 2% phosphorus pentoxide, 1% to 3% potassium oxide, 0.1% to 0.2% chloride ions, and 62.8% to 71.9% water;

[0009] (2) subjecting the mixture of the fresh chicken manure and the culture solution obtained in step (1) to solid-liquid separation to obtain a liquid material and a solid material;

[0010] (3) emulsifying the liquid material obtained in step (2) to obtain an emulsified liquid material;

[0011] (4) sieving the liquid material emulsified in step (3) through two sieves, 60 mesh and 80 mesh, to obtain a sieve undersize and a sieve oversize;

[0012] (5) placing the sieve obtained in step (4) as a stock solution under ventilation conditions for fermentation for more than 15 days to obtain a fermented product stock solution;

[0013] (6) stirring and mixing the fermented product solution obtained in step (5) with auxiliary materials to obtain a mixture;

[0014] (7) The mixture obtained in step (6) is emulsified to obtain a liquid fertilizer.

[0015] Preferably, the amino acids in step (1) are a mixture of one or more of glycine, glutamic acid, phenylalanine and serine in any proportion;

[0016] And / or, the organic matter in step (1) is residual protein and carbohydrate substances in the grain fermentation process.

[0017] Furthermore, in step (1), the mass ratio of the fresh chicken manure to the culture solution is 1:(1-2).

[0018] Furthermore, the stirring speed in step (1) is 50-70 r / min, and the stirring time is 20-40 minutes.

[0019] Furthermore, the auxiliary materials in step (6) are cleaned of impurities before being stirred and mixed with the screened material.

[0020] Furthermore, in step (6), the stirring speed is 50-70 r / min and the time is 20-40 minutes.

[0021] Furthermore, the solid material in step (2) and the screen material in step (4) are treated as solid residues and made into solid fertilizer through drying, fermentation and granulation.

[0022] Furthermore, the emulsification treatment in step (3) and the emulsification treatment in step (7) are performed using a homogenizing emulsification pump.

[0023] Furthermore, the auxiliary materials in step (6) are added according to the product's demand for trace elements and growth regulators in fertilizers.

[0024] The invention also provides chicken manure liquid fertilizer prepared by the processing technology.

[0025] The beneficial effects of the present invention are:

[0026] Compared with the traditional fertilizer processing technology, the chicken manure liquid fertilizer processing technology of the present invention can not only reduce manure pollution, but also fully and effectively utilize the nutrients in the chicken manure scientifically, solve the problems caused by long-term and large-scale application of inorganic fertilizers, such as soil compaction, poor fertilizer and water storage capacity, weakened disease resistance of crops, widespread root rot, and reduced quality of agricultural products. At the same time, through scientific and advanced equipment, fertilizers can be applied to crops more conveniently, quickly and effectively.

[0027] The processing of the chicken manure liquid fertilizer of the present invention can solve the problems existing in the current chicken manure fertilizer processing. The present invention mixes the amino acid liquid and the chicken manure evenly through mixing and stirring, thereby improving the fermentation efficiency; during the fermentation process, the activity of the microorganisms generates a large amount of heat, which can effectively kill harmful organisms such as bacteria, viruses, and parasite eggs in the feces. After inspection, the mortality rate of roundworm eggs in the finished product is higher than 98%. In addition, through drip irrigation and fertilization, the fertilizer is diluted with water and then evenly applied to the soil with water, thereby avoiding the burning of seedlings caused by excessive nutrient concentration. The overall process of the present invention ensures the processing quality, and also makes the fertilizer processing more standardized, and the use is more convenient and balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a process flow chart of the chicken manure liquid fertilizer of Example 1. DETAILED DESCRIPTION

[0029] In order to understand the present invention more clearly, the present invention is further described with reference to the following examples and accompanying drawings. The examples are only used for explanation and are not intended to limit the present invention in any way. In the examples, each raw material reagent is commercially available, and the experimental methods without specifying specific conditions are conventional methods and conventional conditions well known in the art, or according to the conditions recommended by the instrument manufacturer.

[0030] Example 1

[0031] This embodiment provides a processing technology for chicken manure liquid fertilizer, and the process flow chart is as follows: Figure 1 As shown, the following steps are included:

[0032] Step S1, stirring: fresh chicken manure and culture solution are added to a stirring tank at a mass ratio of 1:1.857, and the mixture is fully mixed and stirred in the stirring tank at a stirring speed of 60 r / min for 30 minutes.

[0033] Among them, the culture medium is composed of the following components, in terms of mass percentage: amino acids (amino acids are glycine, glutamic acid, phenylalanine, and serine mixed in a ratio of 1:1:1:1) 4.5% (purchased from Fufeng Biotechnology Co., Ltd.), organic matter (organic matter is the protein and carbohydrate substances remaining in the grain fermentation process) 16.1%, total nitrogen 4.6%, sulfur 3.9%, phosphorus pentoxide 1.1%, potassium oxide 2%, chloride ions 0.18%, and water 67.62%.

[0034] Step S2, solid-liquid separation: fresh chicken manure and culture medium are fully mixed and then enter into a solid-liquid separator for solid-liquid separation for 10 minutes. The separated liquid material is subjected to the next step of emulsification treatment, and the separated insoluble matter is treated as solid residue.

[0035] Step S3, emulsification: the liquid material is carefully sheared by a homogenizing emulsifying pump, and the emulsification effect is achieved through various physical actions such as centrifugal extrusion, liquid layer friction, impact tearing, etc., for 20 minutes. The purpose of this step is to allow more organic matter in the chicken manure to pass through the screen of the next step.

[0036] Step S4, sieving: the emulsified liquid material is sieved through 60 mesh and 80 mesh for 20 minutes to obtain the undersize and oversize. The oversize is treated as solid residue, which is dried, fermented, and finally granulated to make solid fertilizer. The purpose of this step is to ensure that the fertilizer liquid can meet the requirements of the outlet diameter of the drip irrigation capillary tube so as not to block the capillary tube.

[0037] Step S5, fermentation: the above-mentioned undersize is placed in an open-air storage tank as a stock solution for static fermentation for 15 days. After the fermentation is completed, the fermented product stock solution is obtained for the subsequent preparation of liquid fertilizer. The purpose of this step is to decompose organic matter, improve fertilizer efficiency, and kill harmful organisms.

[0038] Step S6, impurity removal: use an impurity remover to remove impurities from raw materials, auxiliary materials and micro-material packaging. The specific types of auxiliary materials and micro-materials are selected according to the requirements of different series of product formulas for trace elements, growth regulators, etc. in fertilizers.

[0039] Step S7, stirring: the fermented product solution in step S5 and the auxiliary materials and micro-materials removed from impurities in step S6 are mixed in a reaction kettle at a speed of 60 r / min for 30 minutes to obtain a mixture.

[0040] Step S8, emulsification: Use a homogenizing emulsifying pump to carefully shear the mixture obtained in step S7, and achieve an emulsification effect through various physical actions such as centrifugal extrusion, liquid layer friction, impact tearing, etc., for 30 minutes, and liquid fertilizer is obtained. The purpose of this step is to make the liquid fertilizer reach 80-100 mesh, so that it can be better integrated with water when used, and meet the requirements of water-fertilizer integration. Chicken manure liquid fertilizer is stored in barrels or cans.

[0041] Comparative Example 1

[0042] The difference from Example 1 is that step S1 is changed to the following operation:

[0043] Fresh chicken manure and water were added into the mixing tank at a mass ratio of 1:1.857, and the mixture was thoroughly mixed and stirred in the mixing tank at a speed of 60 r / min for 30 minutes.

[0044] The rest of the steps are the same.

[0045] Comparative Example 2

[0046] The difference from Example 1 is that step S5 is changed to the following operation:

[0047] The undersize obtained after sieving in step S4 is used as the stock solution, and is directly used for the preparation of the next liquid fertilizer without fermentation.

[0048] The rest of the steps are the same.

[0049] Experimental Example 1: Organic Fertilizer Nutrient Detection

[0050] The finished products of Example 1 and Comparative Examples 1-2 were tested for total nutrients and organic matter content of the organic fertilizer according to the methods in NY / T1977-2010 and NY / T1976. The results are shown in Table 1.

[0051] Table 1

[0052] Group Example 1 Comparative Example 1 Comparative Example 2 <![CDATA[Total nutrients (N + P2O5 + K2O)]]> 12.83％ 8.41％ 10.29％ Organic matter content 14.55％ 10.36％ 9.95％

[0053] Experimental Example 2: Detection of biological indicators of organic fertilizer

[0054] The finished products of Example 1 and Comparative Examples 1-2 were tested for fecal coliform count and ascaris egg mortality of the organic fertilizer according to the methods in GB / T 19524.1 and GB / T 19524.2. The results are shown in Table 2.

[0055] Table 2

[0056] Group Example 1 Comparative Example 1 Comparative Example 2 Fecal coliform count 18 pieces / g 20pcs / g 43pcs / g Ascaris egg mortality 98.8％ 96.2％ 95.6％

[0057] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A processing technology for chicken manure liquid fertilizer, characterized in that: The steps include: (1) stirring and mixing fresh chicken manure and culture solution to obtain a mixture of fresh chicken manure and culture solution, wherein the culture solution comprises the following components by mass percentage: 4% to 5% amino acids, 15% to 18% organic matter, 4% to 5% total nitrogen, 3% to 4% sulfur, 1% to 2% phosphorus pentoxide, 1% to 3% potassium oxide, 0.1% to 0.2% chloride ions, and 62.8% to 71.9% water; (2) subjecting the mixture of the fresh chicken manure and the culture solution obtained in step (1) to solid-liquid separation to obtain a liquid material and a solid material; (3) emulsifying the liquid material obtained in step (2) to obtain an emulsified liquid material; (4) sieving the liquid material emulsified in step (3) through two sieves, 60 mesh and 80 mesh, to obtain a sieve undersize and a sieve oversize; (5) placing the sieve obtained in step (4) as a stock solution under ventilation conditions for fermentation for more than 15 days to obtain a fermented product stock solution; (6) stirring and mixing the fermented product solution obtained in step (5) with auxiliary materials to obtain a mixture; (7) The mixture obtained in step (6) is emulsified to obtain a liquid fertilizer.

2. The processing technology according to claim 1, characterized in that: The amino acids in step (1) are one or more of glycine, glutamic acid, phenylalanine and serine mixed in any proportion; And / or, the organic matter in step (1) is residual protein and carbohydrate substances in the grain fermentation process.

3. The processing technology according to claim 1, characterized in that: The mass ratio of the fresh chicken manure to the culture solution in step (1) is 1:(1-2).

4. The processing technology according to claim 1, characterized in that: The stirring speed in step (1) is 50-70 r / min and the stirring time is 20-40 minutes.

5. The processing technology according to claim 1, characterized in that: The auxiliary materials in step (6) are cleaned before being stirred and mixed with the fermented product liquid.

6. The processing technology according to claim 1, characterized in that: The stirring speed in step (6) is 50-70 r / min and the stirring time is 20-40 minutes.

7. The processing technology according to claim 1, characterized in that: The solid material in step (2) and the screen material in step (4) are treated as solid residues and made into solid fertilizer through drying, fermentation and granulation.

8. The processing technology according to claim 1, characterized in that: The emulsification treatment in step (3) and the emulsification treatment in step (7) are carried out using a homogenizing emulsification pump.

9. The processing technology according to claim 1, characterized in that: The auxiliary materials in step (6) are added according to the product's demand for trace elements and growth regulators in fertilizers.

10. Chicken manure liquid fertilizer prepared by the processing technology according to any one of claims 1 to 9.

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