Development of a Modified 2.4 GHz Microwave System for In-Liquid Plasma Generation and its Application in Aqueous Metal Sulfate Treatment

Authors

  • Pria Gautama Politeknik Negeri Ujung Pandang, Makassar, Indonesia
  • Nomura Shinfuku Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime, Japan
  • Nurfiansyah Nurfiansyah Politeknik Negeri Ujung Pandang, Makassar, Indonesia
  • A. Ariputra Politeknik Negeri Ujung Pandang, Makassar, Indonesia
  • Arfandy Arfandy Politeknik Negeri Ujung Pandang, Makassar, Indonesia
  • Yiyin Klistafani Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, One Brookings Drive, St. Louis, Missouri 63130, United States of America
  • Tri Susilo Department of Electrical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
  • Muhammad Firdan Mechanical Departement,Borneo Tarakan University, Tarakan, North Kalimantan, Indonesia

DOI:

https://doi.org/10.31963/intek.v12i2.5792

Abstract

This study aims to develop a plasma generation system that can be effectively applied in liquid phase environments, specifically for the treatment of aqueous metal sulfate. The research was conducted through several sequential stages designed to streamline and clarify the experimental procedure: design, fabrication (assembly), testing, observation, and data analysis. The effectiveness of the device design was confirmed by the successful formation of plasma within the reactor. Experimental observations confirm that plasma treatment duration significantly affects the pH reduction in NiSO₄ and FeSO₄ solutions. FeSO₄ exhibits a steeper pH decline than NiSO₄ under the same exposure period, implying a stronger response to plasma-generated acidic species. The pH decreased from 6.14 to 3.6 for NiSO₄ and from 5.26 to 3.1 for FeSO₄

Downloads

Published

2025-10-31

Issue

Vol. 12 No. 2 (2025): October 2025

Section

ARTICLES

License

Copyright (c) 2025 Pria Gautama, Nomura Shinfuku , Nurfiansyah Nurfiansyah, A.Ariputra, Arfandy Arfandy, Yiyin Klitsafani, Tri Susilo

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Articles published in INTEK Journal remain under the copyright of the Authors and are made available as Open Access, allowing them to be read, downloaded, and cited in other scholarly works in accordance with applicable citation standards.