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Micro electrolysis disinfecting preparation and preparing method thereof

A technology for disinfectants and electrolyzers, applied in the directions of disinfectants, botanical equipment and methods, biocides, etc., can solve the problems of high equipment manufacturing and operating costs, large power consumption, and tap water impact, and achieve equipment manufacturing and production. The effect of low operation cost, lower production operation cost and lower equipment manufacturing cost

Inactive Publication Date: 2008-07-23
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The method for preparing disinfectant by existing electrolysis technology mainly has the following problems: (1) adopts double-slot diaphragm type strong electrolysis mode, needs ion-exchange membrane, and ion-exchange membrane is very expensive, easily blocked in the electrolysis process, causes diaphragm damage when serious, The service life of the equipment is low, and the electrodes are easily polluted, which affects the electrolysis efficiency. The equipment manufacturing cost and operating cost are high, resulting in high product production costs; (2) The active ingredient of acidic electrolyzed water as a disinfectant is mainly hypochlorous acid molecules (HClO)
But there are following problems in this invention: A. tap water is not through pretreatment, and the property of tap water has bigger influence to electrolytic process, thereby the quality of disinfectant is affected; Electrolyzed water (pH1050mV), the reduction speed is fast, it is not conducive to storage, and it is highly corrosive to metals, which limits the application
In addition to the above-mentioned deficiencies of A and B, this invention also has problems such as long electrolysis time (120min) and large power consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of Micro-electrolysis Bactericidal Disinfectant

[0020] Add 0.2ml of hydrochloric acid with a concentration of 36-38% into 1L of pretreated tap water and mix evenly (the molar concentration is 2.4mM) to obtain a mixed solution; after testing, the conductivity of the mixed solution is 75mS / cm, pH5.75 , ORP 535.7mV, then add the mixture to a volume of 33×15×3.5cm 3 In a diaphragmless electrolyzer with cathode and anode electrodes (manufactured by Shenyang Dongyu Xinboer Technology Co., Ltd.), the electrode plate (29.2×14cm) is made of platinum-plated iridium and ruthenium on titanium, and the distance between the two plates is 0.4cm. Under the condition of 20A electric current, electrolyze for 10min, get pH 6.07, ORP 333.3mV, available chlorine concentration is 15ppm micro-electrolytic bactericidal disinfectant. What this embodiment adopts is intermittent electrolysis mode.

Embodiment 2

[0022] Preparation of Micro-electrolysis Bactericidal Disinfectant

[0023] Mix hydrochloric acid and pretreated tap water to form a hydrochloric acid solution with a molar concentration of 3mM (hydrochloric acid + pretreated tap water, conductivity 82mS / cm, pH4.52, ORP 447.9mV), and The flow rate is continuously added and the volume is 35×20×2.5cm 3 In a diaphragmless electrolyzer with cathode and anode electrodes (produced by Shenyang Dongyu Xinboer Technology Co., Ltd.), the electrode plate (30×16cm) is made of platinum-plated titanium antimony alloy, and the distance between the two plates is 0.4cm. Under electrolysis, obtain pH5.81, ORP 690.0mV, available chlorine concentration is the micro-electrolysis sterilizing disinfectant of 38ppm.

Embodiment 3

[0025] Bactericidal test of microelectrolytic bactericidal disinfectant on pathogenic Salmonella and Escherichia coli

[0026]The bactericidal disinfectant prepared in Example 1 was used to carry out bactericidal tests on the main pathogenic bacteria Salmonella (Salmonella Pullorum and Salmonella enteritidi) and Escherichia coli (Escherichia coli). The strains and medium were purchased from Beijing Haidian Zhonghai Animal Health Technology Company. Including the following steps

[0027] (1) Preparation of bacterial suspension

[0028] The freeze-dried strains were activated, inoculated on tryptone soybean agar medium, incubated at a constant temperature of 37°C for 24 hours, then inoculated on the inclined surface of the test tube and stored in the refrigerator for later use.

[0029] Pick a small amount of bacterial lawn from the slant surface of each strain after activation and inoculate it on a tryptone soybean agar plate by streaking method, culture at a constant tempera...

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Abstract

The invention discloses a micro-electrolysis disinfectant and a preparation method thereof. The disinfectant is mainly characterized in that effective chlorines contained in water are all hypochlorous molecules; the concentration of the effective chlorine is 10-200 ppm; the pH value is 4.5-7.0 and the oxidation-reduction potential is ORP 300-750mV. The preparation method comprises the steps that hydrochloric acid and pretreated tap water are mixed according to the ratio of 1:2500 to 10,000 to obtain the mixture; the mixture is then placed in a septum-free electrolytic bath with a negative electrode and a positive electrode for the electrolysis in an intermittent or continuous way under the voltage of 20-60V and the current of 0.2-20A. The disinfectant of the invention has the advantages of high efficiency, broad spectrum, stable sterilization capacity, safe and convenient application, environment protection, low corrosiveness and wide application scope. In addition, necessary facilities used in the preparation are simple with low cost and no wastewater discharge.

Description

technical field [0001] The invention belongs to a bactericidal disinfectant and a preparation method thereof, in particular to a micro-electrolysis technique for preparing a bactericidal disinfectant and a preparation method thereof. Background technique [0002] At present, the commonly used sterilization and disinfection methods in industrial and agricultural production mainly include physical methods and chemical methods. Physical disinfection mainly uses physical means to kill or eliminate pathogenic microorganisms. It is generally non-toxic, harmless, and less polluting to the environment, such as ultraviolet rays, microwaves, heat and radiation, but has limitations such as poor versatility. Chemical disinfection is the use of chemicals to act on certain specific pathogenic microorganisms to achieve the purpose of killing germs. Commonly used disinfectants include caustic soda, sodium hypochlorite, milk of lime, formalin, peracetic acid, hydrogen peroxide, and permangan...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01P1/00C25B1/26
Inventor 曹薇李保明朱志伟施正香王朝元
Owner CHINA AGRI UNIV
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