Water Treatment Using Plasma Discharge with Variation of Electrode Materials

International Conference on Advanced Materials for Better Future 2017

Chanan, N.^1 ; Kusumandari^1 ; Saraswati, T.E.^2

Department of Physics, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan Surakarta

57126, Indonesia^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan Surakarta

57126, Indonesia^2

关键词: Compound decomposition;    Degradation efficiency;    Electrode material;    Needle electrodes;    Organic solutions;    Plasma discharge;    Plasma reactors;    Plasma treatment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012025/pdf
DOI  :  10.1088/1757-899X/333/1/012025

来源: IOP

【 摘 要 】

This research studied water treatment using plasma discharge. Plasma generated in this study produced active species that played a role in organic compound decomposition. The plasma reactor consisted of two needle electrodes made from stainless steel, tungsten, aluminium and grafit. It placed approximately 2 mm above the solution and connected with high-AC voltage. A solution of methylene blue used as an organic solution model. Plasma treatment times were 2, 4, 6, 8 and 10 min. The absorbance, temperature and pH of the solution were measured before and after treatment using various electrodes. The best electrode used in plasma discharging for methylene blue absorbance reduction was the graphite electrode, which provided the highest degradation efficiency of 98% at 6 min of treatment time.