Publication detail

Effects of Surface-Wave-Sustained Argon Plasma Torch Interaction with Liquids

MARINOVA, P. BENOVA, E. TOPALOVA, Y. TODOROVA, Y. BOGDANOV, T. ZHEKOVA, M. YOTINOV, I. KRČMA, F.

Original Title

Effects of Surface-Wave-Sustained Argon Plasma Torch Interaction with Liquids

Type

journal article in Web of Science

Language

English

Original Abstract

In this paper, an investigation of the interaction of a surface-wave-sustained argon plasma torch with liquids is presented. The plasma is produced by an electromagnetic wave traveling along the plasma–dielectric interface, and at the same time, the plasma is a part of this waveguide structure. Because the interaction of the plasma torch with water (liquid) results in modifications of the properties of both the treated water and the plasma itself, a detailed study of the effects in both media is required. The results of the experimental investigation of a surface-wave-sustained argon plasma torch interaction with liquids show significant changes in the plasma parameters, such as the electron excitation temperature Te and the average rotation temperature Trot. In addition, mechanical waves are produced both in the meniscus surface and in the plasma torch by the interaction between the plasma torch (ionized gas with charged particles and electric field) and the liquid surface, which is different from the effects produced by a neutral gas jet on a liquid surface. As a result of the plasma–water interaction, the water’s chemical and physical characteristics, such as the water conductivity, pH, and H2O2 concentration, are modified. As a possible application for water purification, the performed SWD treatment of model wastewater shows a significant variation in nitrate, ammonium, phosphate, and COD (chemical oxygen demand) concentration as a result of the treatment.

Keywords

surface-wave discharge; microwave plasma torch; cold atmospheric plasma; plasma–liquid interaction; plasma applications

Authors

MARINOVA, P.; BENOVA, E.; TOPALOVA, Y.; TODOROVA, Y.; BOGDANOV, T.; ZHEKOVA, M.; YOTINOV, I.; KRČMA, F.

Released

28. 11. 2023

Publisher

MDPI

Location

Basel

ISBN

2227-9717

Periodical

Processes

Year of study

11

Number

12

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://www.mdpi.com/2227-9717/11/12/3313

Full text in the Digital Library

http://hdl.handle.net/11012/244715

BibTex

@article{BUT187385,
  author="Plamena {Marinova} and Evgenia {Benova} and Yana {Topalova} and Yovana {Todorova} and Todor {Bogdanov} and Maya {Zhekova} and Ivaylo {Yotinov} and František {Krčma}",
  title="Effects of Surface-Wave-Sustained Argon Plasma Torch Interaction with Liquids",
  journal="Processes",
  year="2023",
  volume="11",
  number="12",
  pages="1--18",
  doi="10.3390/pr11123313",
  issn="2227-9717",
  url="https://www.mdpi.com/2227-9717/11/12/3313"
}

Documents

processes-11-03313.pdf