The removal of bisphenols and other contaminants of emerging concern by hydrodynamic cavitation : from lab-scale to pilot-scale
ID Kovačič, Ana (Author), ID Škufca, David (Author), ID Zupanc, Mojca (Author), ID Gostiša, Jurij (Author), ID Bizjan, Benjamin (Author), ID Krištofelc, Nina (Author), ID Sollner Dolenc, Marija (Author), ID Heath, Ester (Author)

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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.

Keywords:contaminants of emerging concern, bisphenol, hydrodynamic cavitation, UV Lab-scale, pilot-scale
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Author Accepted Manuscript
Publication date:15.11.2020
Number of pages:Str. 1-7
Numbering:Vol. 743
PID:20.500.12556/RUL-126481 This link opens in a new window
ISSN on article:0048-9697
DOI:10.1016/j.scitotenv.2020.140724 This link opens in a new window
COBISS.SI-ID:21591299 This link opens in a new window
Publication date in RUL:23.04.2021
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Title:Science of the total environment
Shortened title:Sci. total environ.
COBISS.SI-ID:26369024 This link opens in a new window


License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:15.11.2020

Secondary language

Keywords:kontaminanti, bisfenol, hidrodinamična kavitacija, UV laboratorijska lestvica, pilotna lestvica


Funder:ARRS - Slovenian Research Agency
Project number:L1-7544
Name:Napredne metode odstranjevanja in spremljanja onesnažil, ki so na prioritetnem seznamu Vodne direktive

Funder:ARRS - Slovenian Research Agency
Project number:L1-9191
Name:Prepovedane droge, alkohol in tobak: epidemiologija na osnovi odpadnih vod, uspešnost čiščenja in ranljivost vodnega sistema

Funder:ARRS - Slovenian Research Agency
Project number:N1-0047
Name:Zamenjave bisfenola A: prehajanje iz materialov v stiku z živili, kroženje in izpostavljenost ljudi

Funder:ARRS - Slovenian Research Agency
Project number:J1-8147
Name:Ligandi s tzNHC strukturo v organokovinski kemiji in homogeni katalizi: tvorba vezi C-C in C-N v vodi

Funder:ARRS - Slovenian Research Agency
Project number:J2-8162
Name:Zapiranje snovnih poti pri čiščenju komunalnih odpadnih voda z zelenimi tehnologijami

Funder:Other - Other funder or multiple funders
Project number:OP20.00365
Name:“Potential of biomass for development of advanced materials and bio-based products”

Funder:EC - European Commission
Project number:OP20.00365
Name:“Potential of biomass for development of advanced materials and bio-based products”

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