Detail publikace

Mass Production of Plasma Activated Water: Case Studies of Its Biocidal Effect on Algae and Cyanobacteria

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

18

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"
}