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

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dc.contributor.authorČech, Jancs
dc.contributor.authorSťahel, Pavelcs
dc.contributor.authorRáheľ, Jozefcs
dc.contributor.authorProkeš, Lubomírcs
dc.contributor.authorRudolf, Pavelcs
dc.contributor.authorMaršálková, Eliškacs
dc.contributor.authorMaršálek, Blahoslavcs
dc.coverage.issue11cs
dc.coverage.volume12cs
dc.date.accessioned2021-01-13T11:54:17Z
dc.date.available2021-01-13T11:54:17Z
dc.date.issued2020-11-12cs
dc.description.abstractEfficient 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.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationWater. 2020, vol. 12, issue 11, p. 1-18.en
dc.identifier.doi10.3390/w12113167cs
dc.identifier.issn2073-4441cs
dc.identifier.other166359cs
dc.identifier.urihttp://hdl.handle.net/11012/195840
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofWatercs
dc.relation.urihttps://www.mdpi.com/2073-4441/12/11/3167cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4441/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectplasma activated water (PAW)en
dc.subjectelectrical discharges with liquidsen
dc.subjecthydrodynamic cavitationen
dc.subjectreactive oxygen and nitrogen species (RONS)en
dc.subjectalgaeen
dc.subjectcyanobacteriaen
dc.subjectremovalen
dc.subjectdecontaminationen
dc.titleMass Production of Plasma Activated Water: Case Studies of Its Biocidal Effect on Algae and Cyanobacteriaen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-166359en
sync.item.dbtypeVAVen
sync.item.insts2021.01.22 16:56:11en
sync.item.modts2021.01.22 16:15:37en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. EÚ-odbor fluidního inženýrství Viktora Kaplanacs
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EÚ-odbor fluidního inženýrství Viktora Kaplana