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A kind of hillside soil curing agent and preparation method thereof

A soil curing agent, hillside technology, applied in chemical instruments and methods, soil conditioning materials, other chemical processes, etc., can solve the complex process of synthesizing high-molecular polymer curing agent, poor survival rate of plant cultivation on hillside, and poor sand-fixing effect. Significant and other problems, to achieve the effect of environmental protection and soil consolidation, improve weathering resistance, and low prices

Active Publication Date: 2016-03-23
HUAYUAN LANDSCAPE ARCHITECTURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The soil on the hillside is sandy, with poor water retention and loose soil, and the survival rate of plant cultivation on the hillside is poor
At present, the curing agents used to control sandy soil in the technology include fly ash, polyacrylamide, high molecular polymer, etc. Among them, the curing agents such as fly ash and polyacrylamide have a single effect, take a long time, and the sand fixing effect is not significant ; while the process of synthetic polymer curing agent is complicated, the cost is high, and there is a potential risk of environmental pollution, which limits its popularization and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The hillside soil stabilizer provided by the present embodiment is prepared by the following method:

[0044] (1) Evaporate and concentrate the black liquor (cooking waste liquor) extracted from plant alkaline pulping to a solid content ≥ 10%;

[0045] (2) Add the amount of phenol, formaldehyde and sodium hydroxide to the concentrated black liquor according to the lignin content, so that the mass ratio of lignin: phenol: sodium hydroxide is 23:7:4, formaldehyde and concentrated liquid The dosage relation of lignin is 20mL:25g;

[0046] (3) Mix the concentrated black liquor, phenol, formaldehyde, and sodium hydroxide into the conical flask, place it on a water bath for constant temperature reaction, control the temperature at 75~90°C, and pH at 9~10. After about 3 hours, the reaction ends , to obtain a black-red liquid, which is a mixed solution of phenolic resin, lignin-phenol-formaldehyde condensate;

[0047] The reactions involved in this process are:

[0048] (a) Un...

Embodiment 2

[0057] The hillside soil stabilizer provided by the present embodiment is prepared by the following method:

[0058] (1) Evaporate and concentrate the black liquor (cooking waste liquor) extracted from plant alkaline pulping to a solid content ≥ 10%;

[0059] (2) Add the amount of phenol, formaldehyde, and sodium hydroxide to the concentrated black liquor according to the lignin content, so that the mass ratio of lignin: phenol: potassium hydroxide is 25:9:5, and formaldehyde and concentrated liquid The dosage relation of lignin is 25mL:25g;

[0060] (3) Mix the concentrated black liquor, phenol, formaldehyde, and sodium hydroxide into the conical flask, place it on a water bath for constant temperature reaction, control the temperature at 80°C, and pH at 9.5. After about 2.5 hours, the reaction ends and black Red liquid, the black red liquid is a mixture of phenolic resin, lignin-phenol-formaldehyde condensate;

[0061] The reactions involved in this process are:

[0062] ...

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Abstract

The invention discloses a hillside soil curing agent, which mainly uses the black water of alkaline papermaking or cooking waste liquid as raw materials, adds formaldehyde, phenol and alkali, and combines the lignin in the black water of papermaking with formaldehyde, phenol and the like under alkalinity. Condensation reaction is carried out to generate black-red liquid. In addition, the starch wastewater in the factory is collected, and oxidation, gelatinization reaction, cross-linking and denaturation are carried out successively to generate denatured starch, and then the black-red liquid is mixed with the generated phenolic resin mixture. Soil stabilizer for mountain slopes. The soil curing agent has good environmental protection and soil-fixing effect, can resist rainwater and wind erosion, can also improve the firmness and weathering resistance of the soil, and can improve the water retention of the sand layer in the uphill soil. The invention also discloses a preparation method of the hillside soil curing agent.

Description

technical field [0001] The invention belongs to the technical field of soil curing agents, and in particular relates to a slope soil curing agent and a preparation method thereof. Background technique [0002] In industry, during the papermaking process using plant fibers, a large amount of cooking wastewater will be generated, which not only pollutes the environment, but also causes a certain waste of resources. In these wastewaters, the main component is lignin, which accounts for 28%~33% of its solids; similarly, a lot of organic waste liquids are also produced in the process of washing, pressing, and concentrating in the process of starch processing, causing environmental pollution. These waste liquids contain soluble organic matter such as starch, protein, sugar, carbohydrates, fats, amino acids, etc. Among them, the starch content is the largest, accounting for 35%~60% of the waste liquid; rational utilization of the starch waste liquid will not only The pollution cau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/32C09K105/00
Inventor 董运常彭浩潮吴丹妮欧阳文文
Owner HUAYUAN LANDSCAPE ARCHITECTURE CO LTD
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