A kind of water retaining agent for desert greening, preparation method and application thereof

A water-retaining agent, desert technology, applied in chemical instruments and methods, applications, other chemical processes, etc., to achieve the effect of improving survival rate, high performance, and strengthening plant growth environment

Active Publication Date: 2021-07-23
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a water-retaining agent for desert greening and a preparation method thereof for the problems in the above-mentioned prior art. The special water-retaining agent for desert greening provided by the present invention overcomes the problem of chemically synthesized resin SAP In order to meet the needs of water and soil conservation and desertification control

Method used

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  • A kind of water retaining agent for desert greening, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0076] Embodiment 1: prepare desert greening water-retaining agent

[0077] see figure 1 The preparation process flow diagram of the water-retaining agent for desert greening shown.

[0078] (1) Alkaline solution preparation

[0079] Add 240kg of potassium carbonate solid into the cauldron for alkali preparation, add deionized water to dissolve it under stirring, and cool to room temperature for later use.

[0080] (2) Neutralization

[0081] Put 300kg of acrylic acid into the neutralization reactor, and under agitation, slowly send the potassium carbonate solution in (1) to the neutralization reactor through a delivery pump, and cool to room temperature after the neutralization reaction is completed for use.

[0082] (3) starch gelatinization

[0083] Put 100kg of corn starch into the starch gelatinization reactor, add a certain amount of deionized water with a delivery pump, turn on the stirring device, add 0.5 KOH, gelatinize in a 40°C water bath for 40min, and cool to ...

Embodiment 2

[0094] Embodiment 2: prepare desert greening water-retaining agent

[0095] see figure 1 The preparation process flow diagram of the water-retaining agent for desert greening shown.

[0096] (1) Alkaline solution preparation

[0097] Put 200kg of solid ammonium carbonate into the alkali mixing tank, add deionized water under stirring to dissolve it, and cool to room temperature for later use.

[0098] (2) Neutralization

[0099] Put 300kg of acrylic acid into the neutralization reactor, and under agitation, slowly send the ammonium carbonate solution in (1) to the neutralization reactor through a delivery pump, and cool to room temperature after the neutralization reaction is completed for use.

[0100] (3) starch gelatinization

[0101] Put 120kg of tapioca starch into the starch gelatinization reaction kettle, add a certain amount of deionized water with a delivery pump, turn on the stirring device, add 2.4kg of KOH, gelatinize in a water bath at 50°C for 30min, and cool...

Embodiment 3

[0112] Embodiment 3: prepare desert greening water-retaining agent

[0113] see figure 1 The preparation process flow diagram of the water-retaining agent for desert greening shown.

[0114] (1) Alkaline solution preparation

[0115] In the cauldron with alkali, drop into the ammoniacal liquor of 270kg stand-by.

[0116] (2) Neutralization

[0117] Put 300kg of acrylic acid into the neutralization reactor, and under the condition of stirring, slowly send the ammonia water in (1) to the neutralization reactor through the transfer pump, and cool to room temperature after the neutralization reaction is finished for use.

[0118] (3) starch gelatinization

[0119] Put 80kg of potato starch into the starch gelatinization reactor, add a certain amount of deionized water with a delivery pump, turn on the stirring device, add 1.6kg of KOH, gelatinize in a water bath at 30°C for 60min, and cool to room temperature.

[0120] (4) Mixed packing

[0121] Pump the potato starch paste ...

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Abstract

The invention discloses a water-retaining agent for desert greening, a preparation method and its application. The water-retaining agent for desert greening of the present invention has the advantages of being environmentally friendly, biodegradable, and does not pollute the soil. Starch and potassium fulvic acid are added. Greatly improved water absorption and saline-alkaline resistance, reduced production costs, can meet the needs of desertification control, and has high product application value; when preparing water-retaining agents, adjust the irradiation process, low-temperature gelatinization of starch alkali method, and use weak alkalinity Neutralizing agent, gel segmental drying, reducing energy consumption, improving radiation dose utilization and production efficiency; using the water-retaining agent of the present invention for desert greening and water retention, the grid can prevent sand and soil from moving, and strengthen the plant growth environment; organic matter The layer can supply carbon source, absorb excess water, and ventilate; the water-retaining layer can store water and fertilizer for plant growth and utilization; the synergy of the three measures can greatly improve the survival rate of seedlings planted in the desert.

Description

technical field [0001] The invention belongs to the technical field of water-retaining agent materials, and in particular relates to a water-retaining agent for desert greening, a preparation method and an application thereof. Background technique [0002] Deserts are the product of geological history formed under the action of purely natural factors. However, the evolution and development of the desert are caused by the joint action of nature and human activities, and gradually have a direct and indirect profound impact on people's production and life. China is one of the countries in the world where desertification hazards are relatively serious. The desert area is large and widely distributed. Nearly 1 / 3 of the country's land area is threatened by desertification. The annual direct economic loss caused by desertification hazards is as high as 54 billion yuan. [0003] The main cause of soil desertification is the lack of water resources and uneven distribution of precipi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/32C08F251/00C08F289/00C08F220/06C08F222/38C08F222/14C08F2/46C08B30/18C09K105/00
CPCC08B30/18C08F2/46C08F251/00C08F289/00C09K17/32C09K2105/00C08F222/103
Inventor 饶良懿郭东权
Owner BEIJING FORESTRY UNIVERSITY
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