| Title |
Treatment of marine and fresh water microalgae by gliding arc discharge plasma / |
| Authors |
Marcinauskas, L ; Jonynaitė, K ; Celiešiūtė-Germanienė, R ; Aikas, M ; Kavaliauskas, Ž ; Uscila, R ; Keršulis, S ; Stirkė, A ; Strakšys, A ; Stankevič, V |
| Full Text |
|
| Is Part of |
Books of Abstracts 4th Workshop on Plasma applications for smart and sustainable agriculture 2024.. Belgrade. 2024, WG4, p. 44 |
| Abstract [eng] |
The main objective of this research was to investigate the effects of Gliding Arc Discharge (GAD) plasma treatment on the marine microalgae Isochrysis galbana and the freshwater microalgae Chlorella vulgaris. The study also analyzed the influence of the plasma discharge parameters on the physicochemical properties of the treated F/2 algal growth media. Concentrated algal suspensions (10 ml) were affected by GAD plasma discharge in an air-gas mixture at different applied voltages. The GAD device was supplied with a variable amplitude AC voltage generated at 270 kHz via the 1:33 transformer. During experiments the output voltages of the generator varied in the range from 90 V to 250 V. The treatment duration was 300 seconds, with a 30 mm distance between the knife-edge type electrodes and the surface of the algal suspension. The composition of the generated air plasma was analysed by emission spectrometry. The research investigated the influence of plasma discharge parameters on the pH, conductivity, and concentrations of nitrate, nitrite, and hydrogen peroxide in the microalgae growth medium. Furthermore, changes in cell permeability, content of extracted valuable compounds (proteins and carbohydrates), and reproduction rate of microalgae after GAD plasma treatment were studied... |
| Published |
Belgrade |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2024 |
