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Synergistic effects of trace concentrations of hydrogen peroxide used in a novel hydrodynamic cavitation device allows for selective removal of cyanobacteria
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SYSNO ASEP 0532637 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Synergistic effects of trace concentrations of hydrogen peroxide used in a novel hydrodynamic cavitation device allows for selective removal of cyanobacteria Tvůrce(i) Maršálek, Blahoslav (BU-J) ORCID, SAI
Zezulka, Štěpán (BU-J) ORCID
Maršálková, Eliška (BU-J) ORCID, SAI
Pochylý, F. (CZ)
Rudolf, P. (CZ)Číslo článku 122383 Zdroj.dok. Chemical Engineering Journal. - : Elsevier - ISSN 1385-8947
Roč. 382, FEB 15 (2020), s. 1-5Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova water treatment ; hydrodynamic cavitation ; algae Vědní obor RIV EH - Ekologie - společenstva Obor OECD Chemical process engineering CEP GA16-18316S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora BU-J - RVO:67985939 UT WOS 000503381200249 EID SCOPUS 85074695588 DOI 10.1016/j.cej.2019.122383 Anotace Improved and verified rotating device generating hydrodynamic cavitation (RDGHC) is inspired by so called cavitation heaters. The force and cavitation efficiency of the device is adjustable and can be modified for selective removal of cyanobacteria from water, while algal growth and metabolic activity is not affected. Known published devices using hydrodynamic cavitation need several cycles to reach cyanobacterial elimination (12-200 cycles, 5-200 min of treatment) while this device can remove 99% of cyanobacteria after one single cycle within 0.1 min. Effect on cyanobacterial removal was synergically enhanced by addition of trace concentrations of hydrogen peroxide (45-100 µM H2O2) what is 10-1000 times lower than that used in previous studies. Device can increase and modify temperature, what is additional advantage in potential technological applications. We discuss the potential use of this device in a broad spectrum of technological processes and especially its combination with hydrogen peroxide, ozone, or e.g. ferrates, what can open new areas in enhanced advanced oxydation technologies or as an alternative to sonochemical, microwave assisted or electrochemical processes in chemical engineering where large volumes of liquid have to be treated. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0311196
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