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Modified polypropylene glycol soil remediation agent and preparation method thereof

A technology of soil remediation agent and polypropylene glycol, which is applied in the field of environmental governance, can solve the problems of secondary pollution and residual, and achieve the effects of low production cost, high-efficiency inhibitory effect, and good compatibility

Inactive Publication Date: 2020-09-29
ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN20121023142.2 discloses a heavy metal adsorption flocculant, which is mainly used to adsorb heavy metals in water. CN20031010891.0 discloses a chemical regulator to control soil pollution. The main component is low molecular weight chitosan. It is used as a washing agent. CN107552026A discloses a modified mesoporous material for heavy metal removal. These new materials have good ability to remove heavy metals, but the removal agent will still remain in the soil after removing heavy metals. , easy to form "secondary pollution"

Method used

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  • Modified polypropylene glycol soil remediation agent and preparation method thereof
  • Modified polypropylene glycol soil remediation agent and preparation method thereof
  • Modified polypropylene glycol soil remediation agent and preparation method thereof

Examples

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Effect test

example 1

[0018] in N 2 Add 50g of polyether carboxylate and 50g of β-cyclodextrin ester to the protected reactor, add 80g of maleic anhydride at 70°C, add 70g of acrylic acid, 0.5g of ferric oxide containing double bonds, and 100g of deionized Water, after mixing, drip 9g sodium persulfate (dissolved in 40g deionized water), after the dropwise addition, continue to react at 80°C for 2h, after being down to room temperature, a modified polypropylene glycol soil repair agent ( 1).

example 2

[0020] in N 2 Add 80g of polyether carboxylate and 20g of β-cyclodextrin ester to the protected reaction kettle, add 100g of methacrylic acid, 1.5g of ferric oxide containing double bonds, 120g of deionized water at 65°C, mix well and add dropwise 7g of sodium metabisulfinate (dissolved in 50g of deionized water), after the dropwise addition, continued to react at 80°C for 3h, and after cooling down to room temperature, a modified polypropylene glycol soil remediation agent (2) was prepared.

example 3

[0022] in N 2 Add 30g of polyether carboxylate and 70g of β-cyclodextrin ester in the protected reactor, add 50g of methacrylic acid, 60g of itaconic acid, 1g of ferric oxide containing double bonds, 100g of deionized water at 75°C, and mix After uniformity, 8g potassium persulfate (dissolved in 60g deionized water) was added dropwise. After the dropwise addition, the reaction was continued at 85° C. for 2 h, and after cooling down to room temperature, a modified polypropylene glycol soil remediation agent (3) was prepared.

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Abstract

A modified polypropylene glycol soil remediation agent is prepared by free radical copolymerization of a polypropylene glycol ester monomer, a modified beta-cyclodextrin monomer, a monomer containingvinyl unsaturated double bonds and magnetic ferroferric oxide containing unsaturated double bonds, and has a general structure formula shown in the specification, wherein A is a repeating structural unit obtained after copolymerization of monomers containing vinyl unsaturated double bonds, B is magnetic ferroferric oxide containing unsaturated double bonds, the polymerization degree x, y and z are1-5000, and the number m and n of repeating units are 1-100. The soil remediation agent is good in compatibility, can be compounded with sepiolite, lime and other soil remediation agents for use, andcan also be independently used.

Description

technical field [0001] The invention belongs to the field of environmental treatment, and relates to a modified polypropylene glycol soil restoration agent and a preparation method thereof, which is a soil restoration agent suitable for agricultural planting and planting bases of Chinese medicinal materials, and can be used for the treatment of heavy metal polluted soil and solid waste. Background technique [0002] With the rapid development of my country's economy and the acceleration of industrialization, a large number of industrial "three wastes" are discharged. After the heavy metals and chemical pollutants in these wastes are discharged into the water and soil, the problem of heavy metals in the soil is becoming more and more serious. These polluted and The soil and waters that are being polluted are in urgent need of treatment. If these heavy metals are not dealt with in time, they will eventually enter the human body and other animals and plants through the biologica...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/08
CPCB09C1/08C09K17/40
Inventor 王虎传朱梦洁李传润
Owner ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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