The effect of cold plasma on the tap water characteristics by changing the liquid electrode conditions
- Faculty of Physics, University of Tabriz, Tabriz, Iran
Received: 2024-11-04
Revised: 2024-12-07
Accepted: 2025-01-03
Published 2025-02-10
Copyright (c) 2025 Mohammad Ali Mohammadi, Targol Naghibzadeh, Fatemeh Baharlounezhad, Mohammad Sadegh Zakerhamidi (Author)

This work is licensed under a Creative Commons Attribution 4.0 International License.
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Abstract
Analyzing the aqueous system parameters is important for evaluating water quality. This research examined the impact of exerting argon, nitrogen, air, and oxygen cold plasmas on the properties of tap water such as electrical conductivity, pH, and temperature used for various applications at atmospheric pressure. The results demonstrated that electrical conductivity and temperature were ascending-descending in unstirred water and ascending in stirred water at all plasmas. Based on that, stirred water was chosen to investigate pH that showed all plasmas made water acidic. According to pH results in agreement with the previous reports, oxygen gas was chosen with the most decrease in pH to change the acidic result. After filtering the water with argon gas, oxygen plasma caused basic properties in the water. It was found that changing the water (liquid electrode) conditions inside a reactor can produce different results, making it usable in many applications.
Keywords
- Electrical conductivity,
- PH,
- Plasma,
- Temperature,
- Water
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