Preparation method of macromolecular soil remediation agent

A soil remediation agent and polymer technology, applied in the field of agricultural pollution control, can solve the problems of difficult preparation, large-scale use, and unstable properties of nano-titanium dioxide, and achieve improved germination rate, stable molecular structure, and simple production control. Effect

Inactive Publication Date: 2016-12-07
山东中商研高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The soil leaching toxicity after treatment by this method is very low, but the energy consumption is high, and secondary pollution may be generated during the treatment process
[0007] Chinese patent (application publication number CN101695711A) discloses a chemical immobilization material and application of soil arsenic. The chemical immobilization material is composed of nano-titanium dioxide, iron powder, and sawdust, and has a strong adsorption capacity for soil arsenic; however, nano-titanium dioxide is not easy Preparation, unstable properties, and high cost, so it is not easy to use on a large scale

Method used

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  • Preparation method of macromolecular soil remediation agent

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Comparison scheme
Effect test

Embodiment 1

[0030] A kind of preparation method of macromolecule soil remediation agent, concrete steps are as follows:

[0031] (1) Dissolve 150g of acrylic acid in 100ml of deionized water to prepare an aqueous solution of acrylic acid;

[0032] (2) 60g sodium hydroxide is dissolved in 150ml deionized water to prepare sodium hydroxide solution;

[0033] (3) At room temperature, slowly add the sodium hydroxide solution dropwise to the acrylic acid aqueous solution until the neutralization degree is 80%, and cool to room temperature;

[0034] (4) Add 0.05 g of cross-linking agent N-N' methylenebisacrylamide and 10 g of cross-linking agent methacryl hydroxyethyl ester to the mixed solution, stir evenly to obtain a mixed solution of monomer and cross-linking agent;

[0035] (5) Add 20 g of whole mung bean powder into a three-necked flask equipped with a stirrer, add 100 liters of distilled water, and stir and gelatinize in a constant temperature water bath at 90° C. for 15 minutes;

[003...

Embodiment 2

[0040] A kind of preparation method of macromolecule soil remediation agent, concrete steps are as follows:

[0041] (1) Dissolve 120g of acrylic acid in 50ml of deionized water to prepare an aqueous solution of acrylic acid;

[0042] (2) 60g sodium hydroxide is dissolved in 150ml deionized water to prepare sodium hydroxide solution;

[0043] (3) At room temperature, slowly add the sodium hydroxide solution dropwise to the acrylic acid aqueous solution until the neutralization degree is 80%, and cool to room temperature;

[0044] (4) Add 0.04 g of cross-linking agent N-N' methylene bisacrylamide and 8 g of cross-linking agent methacryl hydroxyethyl ester to the mixed solution, stir evenly to obtain a mixed solution of monomer and cross-linking agent;

[0045] (5) Add 20 g of mung bean whole powder into a three-neck flask equipped with a stirrer, add 100 g of distilled water, and stir and gelatinize in a constant temperature water bath at 80°C for 20 minutes;

[0046] (6) Adj...

Embodiment 3

[0050] A kind of preparation method of macromolecule soil remediation agent, concrete steps are as follows:

[0051] (1) Dissolve 120g of acrylic acid in 100ml of deionized water to prepare an aqueous solution of acrylic acid;

[0052] (2) 60g sodium hydroxide is dissolved in 150ml deionized water to prepare sodium hydroxide solution;

[0053] (3) At room temperature, slowly add the sodium hydroxide solution dropwise to the acrylic acid aqueous solution until the neutralization degree is 80%, and cool to room temperature;

[0054] (4) Add 0.04 g of cross-linking agent N-N' methylenebisacrylamide and 10 g of cross-linking agent methacryl hydroxyethyl ester to the mixed solution, stir evenly to obtain a mixed solution of monomer and cross-linking agent;

[0055] (5) Add 15g of mung bean whole powder into a three-neck flask equipped with a stirrer, add 100g of distilled water, and stir and gelatinize in a constant temperature water bath at 80°C for 30min;

[0056] (6) Adjust the ...

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Abstract

The invention discloses a preparation method of a macromolecular soil remediation agent. The preparation method comprises the following steps of slowly adding dropwise a sodium hydroxide solution to an acrylic acid aqueous solution until the degree of neutralization is 80%, performing cooling, adding a cross-linking agent N,N'-methylene bisacrylamide and hydroxyethyl methacrylate, and then performing uniform stirring; adding whole green bean powder to a three-neck flask, adding distilled water, performing stirring and gelatinization in a thermostatic water bath, adjusting the pH of mixed liquid with the sodium hydroxide solution, introducing nitrogen gas, adding potassium persulfate, adding prepared mixed liquid, performing stirring for thickening, pouring thickened reaction liquid to a tray, performing a reaction in thermostatic water bath, cutting obtained gel, performing vacuum drying, performing screening and performing packaging so as to obtain the macromolecular soil remediation agent. According to the macromolecular soil remediation agent prepared by the method disclosed by the invention, the agricultural green bean powder is used as the raw material, so that the macromolecular soil remediation agent has massive hydrophilic groups, can rapidly and massively absorb water, salt water and physiological liquid, is stable in molecular structure and has superhigh ion adsorption performance.

Description

technical field [0001] The invention relates to the technical field of agricultural pollution control, in particular to a preparation method of a polymer soil remediation agent. Background technique [0002] Soil is one of the four elements of the environment and plays an irreplaceable role in the natural ecosystem. The problem of soil pollution in our country is becoming more and more prominent, especially with the development of industrialization, urbanization and highly intensified agriculture, the development of dyes, chemicals and minerals. The pollution of waste gas, waste water, waste residue, agricultural chemical fertilizers and pesticides discharged by industries such as smelting and processing has become more and more serious, resulting in the decline of more and more farmland soil quality, in which the exchangeable heavy metals are directly absorbed and enriched by crops. directly threaten human health. Soil pollution not only changes the physical and chemical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00C08F220/06C08F222/38C08F220/28C09K17/32
Inventor 曹灿贾凡信
Owner 山东中商研高分子材料有限公司
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