Production method of hypochlorous acid solution capable of being stably stored

Abstract

The invention discloses a production method of a hypochlorous acid solution capable of being stably stored. The production method comprises the steps that raw water is subjected to activated carbon adsorbed filtration, ultrafiltration and counter osmosis to generate pure water; 1-500 ppm of stabilizing agents are added into a chlorine salt solution, and the ratio and parameter configuration of raw materials are controlled by an electrically operated valve; and after being mixed and stirred evenly in a buffer solution groove, the chlorine salt solution and the pure water enter an electrolytic cell of a potential water reactor, and the hypochlorous acid solution is generated by a chlorine salt solution electrolysis method, wherein the physicochemical indexes of the hypochlorous acid solution are as follows: the effective chlorine content is 20-200 mg / L, the pH value is 2.2-6.5, the oxidation reduction potential is greater than or equal to 1000 mV, and the residual chlorine ions are smaller than 1000 mg / L. The stable hypochlorous acid solution is produced by the chlorine salt solution electrolysis method, the trace of stabilizing agents are added in the chlorine salt solution, and the hypochlorous acid solution is produced through electrolysis in an electrolytic reactor and can be stably stored for a long time under the airtight and dark conditions.

Description

technical field [0001] The invention relates to a production method of hypochlorous acid solution, in particular to a production method of hypochlorous acid solution which can be stored stably. Background technique [0002] Hypochlorous acid is a neutral molecule with a small molecular weight, and it is easy to diffuse to the surface of the charged bacteria, and penetrate into the inside of the bacteria through the cell wall, so that the protein of the bacteria is oxidized, resulting in the death of the bacteria. In addition, the new oxygen generated by the decomposition of hypochlorous acid is highly active and can also oxidize bacterial proteins. As a strong oxidizing disinfectant, hypochlorous acid has a bactericidal effect 80 to 100 times that of hypochlorite. [0003] Compared with traditional fungicides, hypochlorous acid solution has the advantages of broad spectrum, high efficiency, safety, non-toxicity, and environmental friendliness. In terms of agricultural appl...

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Problems solved by technology

[0005] At present, there are two main production methods for hypochlorous acid solution: one is to mix and dilute hypochlorite with acid solution, and the pH of the hypochlorous acid solution is usually neutral or weakly acidic. The content of acid radical is high, the bactericidal effect is poor, and it has toxic and side effects; another method is to use chlorine salt or hydrochloric acid electrolysis to generate chlorine gas, which reacts with water to produce hypochlorous acid solution

The chemical properties of the hypochlorous acid solution produced by the above two methods are not stable enough to meet the needs of long-term storage, and it is necessary to add stabilizers or buffers to extend the storage period

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