MARŠÁLEK, Blahoslav, Eliška MARŠÁLKOVÁ, Klára ODEHNALOVÁ, František POCHYLÝ, Pavel RUDOLF, Pavel SŤAHEL, Jozef RÁHEĽ, Jan ČECH, Simona FIALOVÁ and Štěpán ZEZULKA. Removal of Microcystis aeruginosa through the Combined Effect of Plasma Discharge and Hydrodynamic Cavitation. Water. Basel: MDPI, 2020, vol. 12, No 1, p. 1-14. ISSN 2073-4441. Available from: https://dx.doi.org/10.3390/w12010008.
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Basic information
Original name Removal of Microcystis aeruginosa through the Combined Effect of Plasma Discharge and Hydrodynamic Cavitation
Authors MARŠÁLEK, Blahoslav (203 Czech Republic, guarantor), Eliška MARŠÁLKOVÁ, Klára ODEHNALOVÁ, František POCHYLÝ, Pavel RUDOLF, Pavel SŤAHEL (203 Czech Republic, belonging to the institution), Jozef RÁHEĽ (703 Slovakia, belonging to the institution), Jan ČECH (203 Czech Republic, belonging to the institution), Simona FIALOVÁ (203 Czech Republic) and Štěpán ZEZULKA (203 Czech Republic).
Edition Water, Basel, MDPI, 2020, 2073-4441.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 20700 2.7 Environmental engineering
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW Full Text
Impact factor Impact factor: 3.103
RIV identification code RIV/00216224:14310/20:00115158
Organization unit Faculty of Science
Doi http://dx.doi.org/10.3390/w12010008
UT WoS 000519847200008
Keywords in English cyanobacterial bloom; water treatment; drinking water; surface water; cold plasma
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 30/3/2021 15:48.
Abstract
Cyanobacterial water blooms represent toxicological, ecological and technological problems around the globe. When present in raw water used for drinking water production, one of the best strategies is to remove the cyanobacterial biomass gently before treatment, avoiding cell destruction and cyanotoxins release. This paper presents a new method for the removal of cyanobacterial biomass during drinking water pre-treatment that combines hydrodynamic cavitation with cold plasma discharge. Cavitation produces press stress that causes Microcystis gas vesicles to collapse. The cyanobacteria then sink, allowing for removal by sedimentation. The cyanobacteria showed no signs of revitalisation, even after seven days under optimal conditions with nutrient enrichment, as photosynthetic activity is negatively affected by hydrogen peroxide produced by plasma burnt in the cavitation cloud. Using this method, cyanobacteria can be removed in a single treatment, with no increase in microcystin concentration. This novel technology appears to be highly promising for continual treatment of raw water inflow in drinking water treatment plants and will also be of interest to those wishing to treat surface waters without the use of algaecides.
Links
LO1411, research and development projectName: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)
Investor: Ministry of Education, Youth and Sports of the CR
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