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Biomass material for solidifying quaternary ammonium salt as well as preparation method and application thereof

A technology of biomass materials and quaternary ammonium salts, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve problems such as high cost, complicated process, and secondary pollution, and achieve low cost, The effect of overcoming secondary pollution and efficient deep purification

Pending Publication Date: 2018-02-09
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of toxic organic reagents are used in the synthesis of organic polymer materials, the process is complicated, the cost is high, and toxic intermediate by-products are produced, causing serious secondary pollution.

Method used

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  • Biomass material for solidifying quaternary ammonium salt as well as preparation method and application thereof
  • Biomass material for solidifying quaternary ammonium salt as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 0.5 g of sieved wheat straw particles (0.1–0.8 mm) into a three-necked flask, add 2 mL of N-N dimethylformamide, and add 5 mL of epichlorohydrin, and stir for 0.5 h at a temperature of 30 °C . Secondly, 10 mL of octaalkyldimethyl tertiary amine was added, and the reaction was stirred at 40 °C for 1 h to prepare the biomass-based immobilized quaternary ammonium fungicide 1.

[0028] Wherein, the content of quaternary ammonium salt is 0.1 mmol / g.

[0029] Experiments show that the biomass-based immobilized quaternary ammonium salt fungicide prepared above has obvious removal effect on bacteria in water. When the solution pH is 6, E. coli content>10 4 CFU / mL, 10 g / L Material 1 can completely kill Escherichia coli and meet the national drinking water standard.

Embodiment 2

[0031] Take 2 g of sieved corn stalk particles (0.2-0.6 mm) into a three-necked flask, add 20 mL of N-N dimethylformamide, and add 20 mL of epichlorohydrin, and stir for 1.5 h at a temperature of 40 °C . Secondly, 20 mL of dedecyldimethyl tertiary amine was added, and the reaction was stirred at 50 °C for 1.5 h to prepare the biomass-based immobilized quaternary ammonium fungicide 2.

[0032] Wherein, the content of quaternary ammonium salt is 0.15 mmol / g.

[0033] Experiments show that the biomass-based immobilized quaternary ammonium salt fungicide prepared above has obvious removal effect on bacteria in water. When the solution pH is 5, E. coli content>10 5 CFU / mL, 5 g / L Material 2 can completely kill Escherichia coli and meet the national drinking water standard.

Embodiment 3

[0035] Take 5 g of sieved wheat straw particles (0.5–0.8 mm) into a three-necked flask, add 50 mL of N-N dimethylformamide, and add 50 mL of epichlorohydrin, and stir the reaction at 60 °C for 2 h . Secondly, 20 mL of dodecyl dimethyl tertiary amine was added, and stirred at 60 °C for 2 h to prepare biomass-based immobilized quaternary ammonium fungicide 3.

[0036] Wherein, the content of quaternary ammonium salt is 0.3 mmol / g.

[0037] Experiments show that the biomass-based immobilized quaternary ammonium salt fungicide prepared above has obvious removal effect on bacteria in water. When the solution pH is 6.5, E. coli content>10 5 CFU / mL, 4 g / L Material 3 can completely kill Escherichia coli and meet the national drinking water standard.

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Abstract

The invention discloses a biomass material for solidifying quaternary ammonium salt as well as a preparation method and application thereof. A quaternary ammonium group is solidified on the surface ofthe biomass material; the chemical formula of the quaternary ammonium group is -N<+>R(CH3)2, wherein R is -C8H17, -C10H21, -C12H25, -C14H29 or -C16H33; the content of the quaternary ammonium group is0.1 to 1.4 mmol / g. The biomass material prepared according to the method is expected to realize deep purification of bacteria and pathogenic bacteria in water simply and efficiency, provides new thought for deep treatment of biochemical tail water and treatment of water of polluted water source, and has high innovativeness.

Description

technical field [0001] The invention relates to a method for preparing a biomass-based immobilized quaternary ammonium salt fungicide by using agricultural waste as a main raw material, and belongs to the fields of waste resource utilization and water body disinfection treatment. Background technique [0002] Generally speaking, although 90% to 99% of microorganisms in the effluent after biochemical treatment are effectively removed, the absolute number of bacteria is still considerable, and the average number of total coliforms is 10 4 ~10 5 There are pathogenic bacteria among individual / L, which may cause public health safety risks through direct contact, aerosol and other ways of transmission. Therefore, the effective sterilization of biochemical tail water is crucial to the environmental safety of receiving water bodies. [0003] Oxidation and ultraviolet methods are commonly used for biochemical tail water disinfection. However, chlorine or ozone disinfection will pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/12A01N25/08A01P1/00C02F1/50
CPCA01N25/08A01N33/12C02F1/50
Inventor 邱慧梁晨叶美晨柴成宏杨胜男马千越
Owner NANJING UNIV OF INFORMATION SCI & TECH
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