A disinfection system for treating acidic aqueous solution by NO3 gas activation and its control method

The disinfection system uses NO3 gas to activate the acidic aqueous solution, monitors and adjusts the NO3 generation concentration in real time, and combines it with the supply of prefabricated solutions to solve the problems of electrode corrosion and low efficiency in the preparation of plasma-activated water, achieving an efficient and stable sterilization effect.

CN118903492BActive Publication Date: 2025-09-23XI AN JIAOTONG UNIV
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Patent Information

Application Number
CN202410893964.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-09-23
Estimated Expiration
2044-07-04

AI Technical Summary

Technical Problem

Existing methods for preparing plasma-activated water have problems such as electrode corrosion and impurities affecting biosafety, and the indirect treatment efficiency is low, making it impossible to achieve efficient sterilization.

Method used

The disinfection system that uses NO3 gas activation to treat acidic aqueous solution includes a NO3 generation module, a detection module, an activation module and a control module. The NO3 detection module monitors the generated gas concentration in real time, and the control module adjusts the operating parameters to ensure stable NO3 production. The acidic aqueous solution is provided in combination with the prefabricated solution supply module.

Benefits of technology

It effectively avoids electrode corrosion and the influence of impurities, improves the preparation efficiency and stability of plasma-activated water, achieves efficient sterilization and disinfection, and has consistent preparation quality.

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Abstract

The present invention relates to the field of plasma sterilization technology, and more specifically to a disinfection system for treating an acidic aqueous solution with activated NO3 gas, and a control method thereof. The disinfection system comprises an NO3 generation module, an NO3 detection module, a prefabricated solution supply module, an activation module, and a control module. The activation module accommodates the acidic aqueous solution to be treated, and the gas generated by the NO3 generation module activates and treats the acidic aqueous solution to be treated. The present invention is provided with an NO3 detection module and a control module. The NO3 detection module monitors the instantaneous concentration of NO3 generated by the NO3 generation module in real time, ensuring that the NO3 production is greater than or equal to a preset stable production. This overcomes the current technical difficulties of low NO3 production efficiency and unstable NO3 production, which is susceptible to significant changes with discharge parameters and environmental conditions, thereby improving the preparation effect and consistency of the quality of activated water.
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