Preparation method and applications of organic polymer heterotrophic bacteria fungicide

A technology of organic polymers and heterotrophic bacteria, applied in the direction of fungicides, botanical equipment and methods, applications, etc., can solve the problems of long use time, increase the cost of using chemicals, etc., and achieve the effect of enhancing the sterilization efficiency

Inactive Publication Date: 2014-03-12
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single-chain quaternary ammonium fungicide has the characteristics of high efficiency and strong slime peeling ability, but due to the long use time (it was used in the 1960s), some heterotrophic bacteria in ind

Method used

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  • Preparation method and applications of organic polymer heterotrophic bacteria fungicide
  • Preparation method and applications of organic polymer heterotrophic bacteria fungicide
  • Preparation method and applications of organic polymer heterotrophic bacteria fungicide

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Add 29.29kg of tetramethylethylenediamine and 180.25kg of ultrapure water to the reactor equipped with reflux condenser and thermometer, and heat to 40℃; slowly add 36.05kg of dichloroethyl ether to the above reactor, within 0.5h After the addition, add 2.46kg of 30% hydrogen peroxide as the initiator, start the stirrer for stirring, the stirring speed is 300r / min; after the addition of dichloroethyl ether is completed, the temperature of the reactor is raised to 70°C, and the reaction is refluxed for 8h; Pour the light yellow solution after the reaction into the rotary evaporator of the rotary evaporator, adjust the temperature of the water bath of the rotary evaporator to 75℃-80℃, and perform vacuum distillation for 1.5h when the pressure of the circulating hydraulic vacuum pump is increased to 0.1MPa. The light yellow, viscous liquid is PACZMT, and its output is 50kg. The solvent distilled from the rotary evaporator is unreacted ultrapure water and d...

Example Embodiment

[0027] Example 2-5

[0028] The difference between Example 2-5 and Example 1 is that the raw material dosage is different, the vacuum distillation time is different, the water quality conditions of the heterotrophic bacteria sterilization performance test are different, and other process parameters and preparation methods are the same. Table 1 shows the chemical synthesis formula, vacuum distillation time, yield, and heterotrophic bacteria sterilization performance test results of the 5 examples.

[0029] Table 1 Test results of synthetic formula, vacuum distillation time, yield and bactericidal performance of heterotrophic bacteria of the present invention

[0030]

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Abstract

The invention discloses a preparation method and applications of an organic polymer heterotrophic bacteria fungicide. The preparation method comprises the following steps: adding a certain amount of tetramethylethylenediamine and ultrapure water in a reaction kettle, heating the reaction kettle to 40 DEG C, slowly adding a certain amount of dichloroether and hydrogen peroxide having the mass fraction of 30% into the reaction kettle, and stirring the obtained mixture at a rotating speed of 300 r/min; after the materials are completely added, heating to 70 DEG C to react 8 hours, and then carrying out reduced pressure distillation on the obtained product for 1.5-2.5 hours, so that the water-soluble organic polymer heterotrophic bacteria fungicide (PACZMT) can be prepared; and recovering a menstruum obtained by distillation. When the initial number of heterotrophic bacteria colonies is 2.44*10<5>/mL-2.64*10<5>/mL, the adding amount of the PACZMT is 2-6 L/m<3>, the sterilization time is 2-24 hours, the pH value is 7.0-8.0, the temperature is 30-40 DEG C, and the sterilization rate for heterotrophic bacteria is 90.9-99.14%. The PACZMT prepared by using the method disclosed by the invention has the advantages of long effect duration, no bubbles, easiness for biodegradation, and the like.

Description

1. Technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a preparation method and application of an organic polymer heterotrophic fungicide. 2. Background technology [0002] Commonly used heterotrophic fungicides are mainly divided into two types: oxidizing fungicides and non-oxidizing fungicides. Oxidizing fungicides mainly include chlorine gas, bromine-based fungicides, bleaching powder, chloramine, hypochlorous acid, etc. These fungicides have a certain corrosive effect on equipment and are relatively expensive, so they are rarely used in small and medium-sized enterprises; and Cl 2 It may produce carcinogen trihalomethanes (THMS) with organic matter in water. Non-oxidizing fungicides include dithiocyanomethane, isothiazolinone, and quaternary ammonium fungicides, among which single-chain quaternary ammonium fungicides (1227, bromogeramine, etc.) are more commonly used in circulating water. The single-chain quaternar...

Claims

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Application Information

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IPC IPC(8): A01N33/12C08G73/00A01P3/00A01P1/00A01P15/00
Inventor 张文艺李文昱占明飞冯国勇姚立荣程寒飞
Owner CHANGZHOU UNIV
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