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Method for preparing soil improvement agent by utilizing waste spent grains

A soil conditioner and waste disposal technology, which is applied in the field of preparing soil conditioner by using waste residues, can solve the problems of inability to meet environmental protection, circular economy, consumption of natural resources, etc., and achieve the advantages of reducing absorption, improving economic benefits and reducing production costs Effect

Inactive Publication Date: 2018-04-17
CHENGDU WENDA MAOYUAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these current methods consume a lot of natural resources, absorb natural materials or have been processed naturally, which cannot meet the requirements of environmental protection and circular economy. Technical methods are the key to the urgent breakthrough in this field

Method used

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  • Method for preparing soil improvement agent by utilizing waste spent grains

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] This example provides a method for preparing a soil conditioner by using discarded grains. The soil conditioner prepared by this method is a microbial soil conditioner and has a good improvement effect on soil; and most of its raw materials come from industrial or agricultural waste. , to promote the recycling of resources and save costs.

[0030] A method for preparing a soil conditioner by using discarded grains, the raw materials used include 18 parts by mass of discarded grains, 1 part of composite bacterial agent, 12 parts of straw, 24 parts of coal-fired flue gas desulfurization waste, wood vinegar liquid 5 parts, polyacrylamide 4 parts. Among them, the composite bacterial agent is composed of Bacillus colloidus, Bacillus subtilis, Bacillus licheniformis and nitrogen-fixing bacteria according to the mass ratio of 1:0.6:0.3:0.1. The polyacrylamide is anionic, and its ionization degree is 20%. The degree is 1000.

[0031] The method for preparing soil conditioner ...

Embodiment 2

[0036] This example provides a method for preparing a soil conditioner by using discarded grains. The soil conditioner prepared by this method is a microbial soil conditioner and has a good improvement effect on soil; and most of its raw materials come from industrial or agricultural waste. , to promote the recycling of resources and save costs.

[0037] A method for preparing a soil conditioner by using discarded grains, the raw materials used include 20 parts by mass of discarded grains, 2 parts of composite bacterial agents, 12 parts of straw, 25 parts of coal-fired flue gas desulfurization waste, wood vinegar liquid 6 parts, polyacrylamide 5 parts. Among them, the composite bacterial agent is composed of Bacillus coliformis, Bacillus subtilis, Bacillus licheniformis and nitrogen-fixing bacteria according to the mass ratio of 1:0.7:0.4:0.2. The polyacrylamide is anionic, and its ionization degree is 25%. The degree is 1800.

[0038] The method for preparing soil condition...

Embodiment 3

[0043] This embodiment provides a method for preparing a soil conditioner by using discarded dregs. The soil conditioner prepared by this method is a microbial soil conditioner and has a good effect on soil improvement; and most of its raw materials come from industrial or agricultural wastes , to promote the recycling of resources and save costs.

[0044] A method for preparing a soil conditioner by using discarded dregs, the raw materials used include 22 parts of discarded dregs in parts by mass, 2 parts of compound bacterial agent, 14 parts of straw, 28 parts of coal-fired flue gas desulfurization waste, and wood vinegar liquid. 8 parts, 6 parts polyacrylamide. Among them, the compound bacterial agent is composed of Bacillus colloid, Bacillus subtilis, Bacillus licheniformis and nitrogen-fixing bacteria according to the mass ratio of 1:0.8:0.5:0.2, and the polyacrylamide is anionic with an ionization degree of 30%. The degree is 2000.

[0045] The method for preparing soi...

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Abstract

The invention discloses a method for preparing a soil improvement agent, which relates to the technical field of soil improvement. The method for preparing the soil improvement agent by utilizing thewaste spent grains comprises the following steps: drying the waste spent grains, pulverizing the waste spent grains, and obtaining waste spent grains powder; sterilizing the waste spent grain powder under a hot and humid condition, and naturally cooling to the normal temperature; inoculating complex microbial inoculants to the cooled waste spent grain powder to perform the strain culture, and obtaining decomposed waste spent grains; and uniformly mixing straws, coal-fired flue gas desulphurization waste, wood vinegar, polyacrylamide and the decomposed spent grains, thus obtaining the soil improvement agent. According to the method, the industrial or agricultural wastes such as the spent grains, the straws, the coal-fired flue gas desulphurization waste and the like are recycled, the resource consumption is reduced, the production cost is decreased, and the economic benefit is increased; a microorganism system of the soil is improved by utilizing the complex microbial inoculants, so that the micro-circulation system of the soil is restored; and by utilizing the wood vinegar and the polyacrylamide to improve the characteristics and structure of the soil, the polyacrylamide can also reduce the absorption of plants for heavy metal ions.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for preparing a soil conditioner by using discarded grains. Background technique [0002] Saline-alkali soil is a type of soil formed by salinization or alkalization, including saline soil, alkaline soil and various saline-alkali soils. In arid and semi-arid areas, the salt contained in the bottom soil and groundwater, due to ground evaporation, will cause the salt water to rise to the surface layer with the capillary action of the soil. After the water evaporates, the salt will remain on the soil surface and accumulate. And form saline-alkali land. The formation of alkaline soil and alkalized soil in our country is mostly related to industrial pollution and unreasonable fertilization, resulting in the accumulation of carbonate and metal ions in the soil. The degree of salinization and alkalization is generally high. Plants in severe saline-alkali soil areas ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 叶茂
Owner CHENGDU WENDA MAOYUAN TECH