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Water retaining agent used for desert greening as well as preparation method and application of water retaining agent

A water-retaining agent and desert technology, applied in chemical instruments and methods, applications, and other chemical processes, to achieve the effects of improving radiation dose utilization and production efficiency, increasing porosity, and reducing production costs

Active Publication Date: 2019-07-16
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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  • Water retaining agent used for desert greening as well as preparation method and application of water retaining agent
  • Water retaining agent used for desert greening as well as preparation method and application of water retaining agent

Examples

Experimental program
Comparison scheme
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 reactor, 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 to room...

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 used for desert greening as well as a preparation method and application of the water retaining agent. The water retaining agent used for the desert greening provided by the invention has the advantages of being environmentally friendly, biodegradable and pollution-free to soil, starch and potassium fulvic acid are added, so that the water absorptionand salt-tolerant performance are greatly improved, the production costs are reduced, the demand for desertification treatment can be met, and the product application value is high; when the water retaining agent is prepared, through irradiation process adjustment, starch alkaline method low-temperature gelatinization, selection of a weakly-alkaline neutralizing agent and gel segmentation drying,the energy consumption is reduced, and the irradiation agent utilization rate and production efficiency are improved; and when the water retaining agent is used for the desert greening and water retention, grids can prevent sand from moving, and strengthen plant growth environment, an organic matter layer can play roles in supplying a carbon source, absorbing excess water and permeating air, a water retaining layer can store water and fertilizers for plant growth, and the synergistic effect of the three measures can greatly improve a survival rate of seedlings planted in 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 Applications(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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