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Cited by 25Plasma Applications and DiagnosticsPlasma and Flow Control in AerodynamicsWater Treatment and Disinfection

Experimental Studies on Physicochemical Parameters of Water Samples before and after Treatment with a Cold Atmospheric Plasma Jet and its Optical Characterization

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Baniya, Hom Bahadur, Guragain, Rajesh Prakash, Panta, Gobinda Prasad, Dhungana, Santosh, Chhetri, Ganesh Kuwar, Joshi, Ujjwal Man, Pandey, Bishnu Prasad, Subedi, Deepak Prasad·2021·Journal of Chemistry
DOI 10.1155/2021/6638939
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Abstract

Cold plasma-liquid interaction becomes a growing interdisciplinary area of research involving plasma physics, fluid science, and chemistry. Plasma-liquid interaction has gained more interest over the last many years due to its potential applications in different fields. Cold atmospheric plasma jet is an emerging technology for surface drinking water treatment to improve quality and surface modification that is chemical-free and eco-friendly. Cold plasma treatment of water samples results in changes in turbidity, pH, and conductivity and in the formation of reactive oxygen and nitrogen species (RONS). As a result, plasma-activated water has a different chemical composition than water and can serve as an alternative technique for microbial disinfection. CAPJ has been generated by a high voltage 5 kV and a high frequency 19.56 kHz power supply. The discharge has been characterized by an optical method. To characterize the cold atmospheric pressure argon plasma jet, discharge plume temperature, and electron rotational and vibrational temperature have been determined. Cold atmospheric argon plasma jet produced at atmospheric condition contains high energetic electrons, ions, UV radiation, reactive oxygen, and nitrogen species named as cold plasma which has a wide range of applications in the biomedical industry, as well as in water treatment. Nowadays, researches have been carried out on ozonation through plasma jet interaction with surface drinking water. In this paper, we compare the change in physical and chemical parameters of surface water used for drinking purposes. The significant change in the physical parameters such as pH, turbidity, and electrical conductivity was studied. In addition, the significant changes in the concentration and absorbance of nitrate, ferrous, and chromium ions with respect to treatment time were studied. Our results showed that plasma jet interaction with surface drinking water samples can be useful for the improvement of water quality and an indicator for which reactive species play an important role in plasma sterilization.

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  • Kalaivendan observed a reduction in reducing sugar of orange juice after CP treatment, possibly due to an increase in sucrose and a decrease in fructose, while glucose remained unchanged.

    “Kalaivendan [44] observed a reduction in reducing sugar of orange juice, after CP treatment, possibly due to an increase in sucrose and a decrease in fructose, while glucose remained unchanged, resulting in a decrease in reducing sugar content [36].”

    From Effect of Atmospheric Cold Plasma Treatment on the Microorganism Growth, Diversity, and Quality of Coconut Water During Refrigerator Storage (2025) · cites this paper as [36]

    The Materials and Methods section describes cold-plasma treatment of drinking-water samples, and the Conclusion reports changes in water-quality measures. Our copy does not address Kalaivendan’s orange-juice findings or changes in reducing sugar, sucrose, fructose, and glucose; searches for those terms found no relevant passage. Page numbers were not available in the indexed copy. (LLM, conf=0.78)

    Experimental — accuracy not yet measured

  • Degradation of glucose and fructose is attributed to the formation of reactive plasma species, such as hydroxyl radicals, atomic oxygen, or singlet oxygen, which react with sugars and produce acidic compounds.

    “The degradation of glucose and fructose was attributed to the formation of reactive plasma species, such as hydroxyl radicals, atomic oxygen, or singlet oxygen. These radicals react with the sugars and produce acidic compounds [36].”

    From Effect of Atmospheric Cold Plasma Treatment on the Microorganism Growth, Diversity, and Quality of Coconut Water During Refrigerator Storage (2025) · cites this paper as [36]

    Section 3.6.2 (pH; page unavailable) attributes a slight decrease in treated water’s pH to reactive species, but does not discuss sugars or sugar-derived acidic compounds. Searches for glucose, fructose, sugar degradation, hydroxyl radicals, atomic oxygen, and singlet oxygen found no passage addressing the claimed reaction. (LLM, conf=0.76)

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Authors
Baniya, H. B., Guragain, R. P., Panta, G. P., Dhungana, S., Chhetri, G. K., Joshi, U. M., Pandey, B. P., & Subedi, D. P.
Affiliations
  • Tribhuvan University (NP)
  • Kathmandu University (NP)
Corresponding author
  • Baniya, Hom Bahadur
  • Guragain, Rajesh Prakash
ORCID
Venue
Journal of Chemistry
Publisher
Wiley
Published
2021-01-13
Volume
2021
Pages
1-12
ISSN
  • 2090-9063 (ISSN-L)
  • 2090-9071
DOI
10.1155/2021/6638939
OpenAlex
W3120047866
Cited by
25
References
0
Citations by year
2026: 4 · 2025: 5 · 2024: 6 · 2023: 2 · 2022: 2 · 2021: 6
FWCI
2.12
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Chemistry (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Nepal Academy of Science and Technology (11/073/074)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Plasma Applications and Diagnostics
  • Physical Sciences › Engineering › Aerospace Engineering › Plasma and Flow Control in Aerodynamics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Water Treatment and Disinfection
Keywords
cold atmospheric plasma jet, drinking water treatment, plasma-liquid interaction, plasma-activated water, reactive oxygen and nitrogen species, turbidity, pH, electrical conductivity, nitrate removal, ferrous ions, chromium ions, discharge temperature, microbial disinfection, surface water quality

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