The removal of bisphenols and other contaminants of emerging concern by hydrodynamic cavitation : from lab-scale to pilot-scale

Kovačič, Ana (avtor), Škufca, David (avtor), Zupanc, Mojca (avtor), Gostiša, Jurij (avtor), Bizjan, Benjamin (avtor), Krištofelc, Nina (avtor), Sollner Dolenc, Marija (avtor), Heath, Ester (avtor)

The rapid growth in the variety and quantity of contaminants of emerging concern (CEC) in wastewater indicates the necessity for developing efficient and environmentally friendly methods for their removal. This study investigates the removal efficiency of 46 CEC, including 12 bisphenols, from wastewater using a lab and pilot-scale hydrodynamic cavitation generator alone and in combination with UV illumination (pilot-scale). During lab-scale cavitation, the highest removal efficiencies of bisphenols (15-63%) for this specific design of cavitator were obtained at a rotational frequency (vcav)=9500 rpm and time (tcav)=10-min. Temperature and the physicochemical properties (e.g. Kow) of the studied compounds also had a significant effect on removal efficiency. At the pilot-scale, 11 CECs were quantifiable in the wastewater influent, and the generator operated at cav=2290 and 2700rpm. The highest removal efficiencies (15-90%) were obtained at a lower cav=2290 rpm while neither an increase in cav, tcav or the presence of UV-C light increased the removal efficiency. A lower cav also reduced the hydrodynamic power of the cavitator from 477W to 377W, resulting in reduced energy consumption. Overall, the results show the potential of hydrodynamic cavitation for a large-scale application as a pre-treatment technology and pave the way for future improvements in the design of cavitation reactors.

• Jezik: Angleški jezik
• Ključne besede: contaminants of emerging concern, bisphenol, hydrodynamic cavitation, UV Lab-scale, pilot-scale
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Datum objave: 15.11.2020
• Leto izida: 2020
• Št. strani: Str. 1-7
• Številčenje: Vol. 743
• PID: 20.500.12556/RUL-126481
• UDK: 547:615
• ISSN pri članku: 0048-9697
• DOI: 10.1016/j.scitotenv.2020.140724
• COBISS.SI-ID: 21591299
• Datum objave v RUL: 23.04.2021

Gradivo je del revije

• Naslov: Science of the total environment
• Skrajšan naslov: Sci. total environ.
• Založnik: Elsevier
• ISSN: 0048-9697
• COBISS.SI-ID: 26369024

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 15.11.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: kontaminanti, bisfenol, hidrodinamična kavitacija, UV laboratorijska lestvica, pilotna lestvica