Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF5 Cites 4 Cited by
  • 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 industrial circulating water systems have developed resistance to it. In the process of use, the bactericidal effect can only be guaranteed by increasing the dosage of the agent, which increases the cost of the agent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Embodiment 1

[0025] Add 29.29kg of tetramethylethylenediamine and 180.25kg of ultrapure water into the reaction kettle equipped with a reflux condenser and a thermometer, and raise the temperature to 40°C; slowly add 36.05kg of dichloroethyl ether into the above reaction kettle, within 0.5h After the addition, 2.46kg of hydrogen peroxide with a mass fraction of 30% was added as an initiator at the same time, and the stirrer was started to stir at a stirring speed of 300r / min; after the dichloroethyl ether was added dropwise, the temperature of the reactor was raised to 70°C, and the reaction was refluxed for 8h; Pour the light yellow solution after the reaction into the rotary evaporator bottle of the rotary evaporator, adjust the water bath temperature of the rotary evaporator to 75°C-80°C, and carry out vacuum distillation for 1.5h when the pressure of the circulating hydraulic vacuum pump rises to 0.1MPa, and the obtained The light yellow, viscous liquid is PACZMT, and its yield is 50kg....

Embodiment 2-5

[0028] The difference between Examples 2-5 and Example 1 is that the dosage of raw materials is different, the time of vacuum distillation is different, the water quality conditions of heterotrophic bactericidal performance test are different, and other process parameters and preparation methods are the same. Table 1 shows the synthetic formulation of the medicament, the vacuum distillation time, the output and the test results of the heterotrophic bactericidal performance of 5 examples.

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

[0030]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com