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Method for converting farm wastes and monosodium glutamate wastewater into liquid compound fertilizer

A monosodium glutamate waste liquid and compound fertilizer technology, which is applied to the preparation of liquid fertilizers, fertilizers made from biological waste, and organic fertilizers. Effects of increasing germination rate and plant height, stabilizing properties, reducing pH value and salt content

Inactive Publication Date: 2017-04-26
梁勇
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] At present, high-temperature composting is the most effective way to realize the harmlessness and resource utilization of livestock and poultry breeding waste. However, during the heating and high-temperature stages of composting, due to the proliferation of microorganisms, the decomposition of organic matter is accelerated, and a large amount of ammonium nitrogen accumulates in the heap, making the material pH rises, causing NH in nitrogen 3 Volatilization loss will not only increase the stench of the composting field, reduce the nutrient content in the fertilizer, but also often cause the pH of the compost product to exceed the standard, which cannot meet the requirements of the pH (pH5.5-8.5) stipulated in the Ministry of Agriculture's organic fertilizer industry standard NY526-2012

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  • Method for converting farm wastes and monosodium glutamate wastewater into liquid compound fertilizer

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preparation example Construction

[0027] Such as figure 1 Shown, the invention provides the preparation method of liquid compound fertilizer, comprises the steps:

[0028] S1: Separating the farm waste by gravity sedimentation to obtain waste water and waste residue; the water content of the waste residue is 20% to 60%.

[0029] S2: Filtrate the waste water to obtain filtrate and filter residue; the moisture content of the filter residue is 20%-55%; the filtration is performed by ultrafiltration membrane, and the pore size of the ultrafiltration membrane is 0.001 μm-0.02 μm.

[0030] S3: Mix waste residue and filter residue evenly to obtain compost material, and carry out composting fermentation on compost material to obtain base manure; the mass ratio of waste residue and filter residue is (8~3):2; compost fermentation includes: adjusting the moisture content in the compost material to 58% to 62%, and then stacked to grow to 1.8m to 2m, 1.5m to 2m wide, and 0.6m to 1.5m high. Membrane, after 5 to 7 days of ...

Embodiment 1

[0034] S1: The waste from the farm is separated by gravity sedimentation in the sedimentation tank to obtain waste water and waste residue; the moisture content of the waste residue is 35%.

[0035] S2: Filter the waste water with an ultrafiltration membrane with a pore size of 0.01 μm to obtain a filtrate and a filter residue; the moisture content of the filter residue is 50%.

[0036] S3: Mix the waste residue with a moisture content of 35% and the filter residue with a moisture content of 50% in a ratio of 8:2 to obtain a compost material, adjust the moisture content of the compost material to 60%, and then stack it to grow to 1.8m in width 1.5m in length and 1.2m in height in a strip-shaped fermented heap. Cover the outside of the fermented heap with 3 layers of expanded polytetrafluoroethylene membranes for composting and fermentation. After 5 days of stacking, add MSG waste liquid to the fermented heap. Continue to stack until the total number of days is 15 days to obtai...

Embodiment 2

[0039] S1: The waste from the farm is separated by gravity sedimentation in the sedimentation tank to obtain waste water and waste residue; the moisture content of the waste residue is 40%.

[0040] S2: Filter the waste water with an ultrafiltration membrane with a pore size of 0.02 μm to obtain a filtrate and a filter residue; the moisture content of the filter residue is 50%.

[0041] S3: Mix the waste residue with a moisture content of 40% and the filter residue with a moisture content of 50% in a ratio of 8:2 to obtain a compost material, adjust the moisture content of the compost material to 61%, and then stack it to grow to 1.8m in width 1.7m in length and 1.2m in height in the form of piles of fermented products. Cover the outside of the pile with 3 layers of expanded polytetrafluoroethylene membranes for composting and fermentation. After 5 days of stacking, add MSG waste liquid to the pile of fermented Continue to stack until the total number of days is 13 days to obt...

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Abstract

The invention relates to a method for converting farm wastes and monosodium glutamate wastewater into a liquid compound fertilizer. The method comprises the following steps: separating the farm wastes to obtain wastewater and waste residues; filtering the wastewater to obtain filtrate and filter residues; and mixing the waste residues with the filter residues uniformly to obtain a compost material, performing composting fermentation, adding the filtrate, the monosodium glutamate wastewater and an additive into an obtained base fertilizer, and then mixing the materials uniformly to obtain the liquid compound fertilizer, wherein the additive comprises calcium oxide, a boron fertilizer, iron, magnesium, an ethylenediamine tetraacetic acid (EDTA) zinc disodium salt hydrate and EDTA manganese disodium salt hydrate. The conversion method provided by the invention can achieve recycling of livestock and poultry breeding wastes, and provides a raw material source for preparing a compound fertilizer for improving saline-alkali soil; the conversion method is simple, is easy to control, and can avoid nitrogen loss and improve the nutrient content of the fertilizer at the same time; and the conversion method ensures that the pH value of the prepared compound fertilizer is in line with an industry standard, and the prepared compound fertilizer can reduce the pH value and salt content of the saline-alkali soil, and improve the germination rate and plant height of a plant.

Description

technical field [0001] The invention relates to the technical field of waste resource reuse, in particular to a method for converting farm waste and monosodium glutamate waste liquid into liquid compound fertilizer. Background technique [0002] my country is a country with scarce land resources, and the per capita arable land is less than 0.07hm 2 , and continues to decrease due to urban expansion, soil degradation, and population growth. The problem of soil salinization has been paid attention to all over the world, and it is the most difficult part of the land degradation problem. Soil salinization mainly occurs in relatively arid regions and continental depressions in the world. All kinds of salts caused by the aggregation of the soil continue to accumulate in the soil, which increases the salinity and causes plants to fail to grow. [0003] The latest survey and research results of the Nanjing Soil Institute of the Chinese Academy of Sciences show that the total area ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05F17/00C05G3/80
CPCC05D3/02C05F17/00C05G3/80C05G5/23C05D5/00C05D9/02C05F3/00C05F5/006Y02W30/40
Inventor 梁勇
Owner 梁勇
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