Preparation method of organophosphorus pesticide-polluted soil repairing agent

An organophosphorus pesticide and soil remediation technology, which is applied in the field of preparation of soil remediation agents, can solve problems such as the inability of organophosphorus treatment to achieve the effect of no secondary pollution and low operating cost.

Inactive Publication Date: 2019-04-23
张云伟 +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The common soil remediation methods of the above technologies and existing solutions include microbial remediation, chemical remediation and physical remediation, but the existing methods can not meet people's expectations for the treatment of organic phosphorus in the soil, so looking for a safe and environmentally friendly It is very necessary to remediate the organophosphorus-contaminated soil with efficient removal of organophosphorus

Method used

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  • Preparation method of organophosphorus pesticide-polluted soil repairing agent

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Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a soil remediation agent for remediating organophosphorus pesticide pollution, the technical scheme of which is as follows:

[0024] According to the mass parts, add 2.3 parts of 5-boropyridine carboxylic acid and 6 parts of zinc borate into the reaction kettle, then add 45 parts of water and 3 parts of alcohol, mix and stir evenly, and then add 15 parts of silicone resin and 0.3 parts of 1,1'-bis(diphenylphosphino)ferrocene, controlled temperature at 50°C, stirred evenly, then added 8 parts of hydrogen peroxide dropwise into the reactor, reacted for 40min, then added 25 parts of silica sol and 0.08 parts of terephthalic acid-2,5-furandicarboxylic acid ethylene glycol copolyester (PEFT), after stirring evenly, add 1.6 parts of organic phosphorescent degradation catalyst, stir and mix evenly, and then dry at 120°C, Grind the obtained product into powder to obtain the finished product.

[0025] Described organophosphorescence degradation catalyst i...

Embodiment 2

[0031] A method for preparing a soil remediation agent for remediating organophosphorus pesticide pollution, the technical scheme of which is as follows:

[0032] According to the mass parts, add 0.5 parts of 5-boropyridine carboxylic acid and 3 parts of zinc borate into the reaction kettle, then add 20 parts of water and 1 part of alcohol, mix well and add 10 parts of silicone resin and 0.1 part of 1,1'-bis(diphenylphosphino)ferrocene, controlled temperature at 40°C, stirred evenly, then added 5 parts of hydrogen peroxide dropwise into the reactor, reacted for 30min, then added 20 parts of silica sol and 0.05 parts of terephthalic acid-2,5-furandicarboxylic acid ethylene glycol copolyester (PEFT), after stirring evenly, add 0.8 parts of organic phosphorescent degradation catalyst, stir and mix evenly, and then dry it at 80°C, Grind the obtained product into powder to obtain the finished product.

[0033] Described organophosphorescence degradation catalyst is prepared accord...

Embodiment 3

[0039] A method for preparing a soil remediation agent for remediating organophosphorus pesticide pollution, the technical scheme of which is as follows:

[0040] According to the mass parts, add 5 parts of 5-boron pyridine carboxylic acid and 10 parts of zinc borate into the reaction kettle, then add 65 parts of water and 5 parts of alcohol, mix and stir evenly, and then add 20 parts of silicone resin and 0.5 parts of 1,1'-bis(diphenylphosphino)ferrocene, the temperature is controlled at 60°C, and after stirring evenly, 10 parts of hydrogen peroxide are added dropwise into the reaction kettle, reacted for 60 minutes, and then add 30 parts of silica sol and 0.5 parts of terephthalic acid-2,5-furandicarboxylic acid ethylene glycol copolyester (PEFT), after stirring evenly, add 3.6 parts of organic phosphorescent degradation catalyst, stir and mix evenly, and then dry at 150°C, Grind the obtained product into powder to obtain the finished product.

[0041] Described organophosp...

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Abstract

The invention relates to the field of environmental pollution, particularly to a preparation method of an organophosphorus pesticide-polluted soil repairing agent. The prepared organophosphorus pesticide-polluted soil repairing agent contains an organophosphorus photodegradation catalyst, which can produce superoxide radicals and hydroxyl radicals under solar irradiation to efficiently and thoroughly degrade organophosphorus pesticides such as phorate, terbufos and parathion. The organophosphorus pesticide-polluted soil repairing agent has the advantages of being simple, efficient, low in operational cost and free from secondary pollution and can be widely applied to restoration of various kinds of organophosphorus pesticide-polluted soil in farmland, dryland or abandoned factories.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a preparation method of a soil remediation agent for remediating organophosphorus pesticide pollution. Background technique [0002] my country is a large agricultural country with a large population. In order to meet the people's demand for food, pesticides have become a necessary guarantee for stable and bumper agricultural production. Organophosphorus pesticides, which have the advantages of high efficacy, low cost, multiple varieties, wide range of control, and small drug damage, have gradually developed into the leaders of domestic pesticides. However, with the increase in usage, organophosphorus pesticides pollute Soil problems are also getting worse. [0003] 201711415542.5 discloses a medicament for repairing organic phosphorus polluted soil and its preparation method, including the following raw materials in parts by weight: 2.4-4 parts of peony pollen, 12-18 par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B01J23/34C09K101/00
CPCB01J23/34B01J35/004B01J2523/00C09K17/40C09K2101/00B01J2523/55B01J2523/69B01J2523/72
Inventor 张云伟王维心郑春英李寿刚王卓
Owner 张云伟
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