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ČECH, J. SŤAHEL, P. RÁHEĽ, J. PROKEŠ, L. RUDOLF, P. MARŠÁLKOVÁ, E. MARŠÁLEK, B.
Originální název
Mass Production of Plasma Activated Water: Case Studies of Its Biocidal Effect on Algae and Cyanobacteria
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Efficient treatment of contaminated water in industrially viable volumes is still a challenging task. The hydrodynamic cavitation plasma jet (HCPJ) is a promising plasma source for industrial-scale generation of biologically active environments at high flow rates of several m(3)/h. The combined effect of a hydro-mechanical phenomenon consisting of hydrodynamic cavitation and electrical discharge in cavitation voids was found to be highly efficient for large-volume generation of reactive oxygen species, ultraviolet (UV) radiation, and electro-mechanical stress in a liquid environment. Here, the persistence of biocidal properties of HCPJ-activated water (i.e., plasma-activated water (PAW)) was tested by the study of algae and cyanobacteria inactivation. Algae and cyanobacteria cultivated in media containing PAW (1:1) were completely inactivated after 72 h from first exposure. The test was performed at a total power input of up to 0.5 kWh/m(3) at the treated liquid flow rate of 1 m(3)/h. A beneficial modification of our previous HCPJ design is described and thoroughly characterized with respect to the changes of hydrodynamic flow conditions as well as discharge performance and its optical characteristics. The modification proved to provide high biocidal activity of the resulting PAW, which confirms a strong potential for further design optimization of this promising water (liquid) plasma source.
Klíčová slova
plasma activated water (PAW); electrical discharges with liquids; hydrodynamic cavitation; reactive oxygen and nitrogen species (RONS); algae; cyanobacteria; removal; decontamination
Autoři
ČECH, J.; SŤAHEL, P.; RÁHEĽ, J.; PROKEŠ, L.; RUDOLF, P.; MARŠÁLKOVÁ, E.; MARŠÁLEK, B.
Vydáno
12. 11. 2020
Nakladatel
MDPI
Místo
BASEL
ISSN
2073-4441
Periodikum
Water
Ročník
12
Číslo
11
Stát
Švýcarská konfederace
Strany od
1
Strany do
18
Strany počet
URL
https://www.mdpi.com/2073-4441/12/11/3167
Plný text v Digitální knihovně
http://hdl.handle.net/11012/195840
BibTex
@article{BUT166359, author="Jan {Čech} and Pavel {Sťahel} and Jozef {Ráheľ} and Lubomír {Prokeš} and Pavel {Rudolf} and Eliška {Maršálková} and Blahoslav {Maršálek}", title="Mass Production of Plasma Activated Water: Case Studies of Its Biocidal Effect on Algae and Cyanobacteria", journal="Water", year="2020", volume="12", number="11", pages="1--18", doi="10.3390/w12113167", issn="2073-4441", url="https://www.mdpi.com/2073-4441/12/11/3167" }