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

URLURL - Source URL, Visit https://www.sciencedirect.com/science/article/pii/S0048969720342467?via%3Dihub This link opens in a new window
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Abstract
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.

Language:English
Keywords:contaminants of emerging concern, bisphenol, hydrodynamic cavitation, UV Lab-scale, pilot-scale
Work type:Article (dk_c)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2020
Article publication date:15.11.2020
Number of pages:Str. 1-7
Numbering:Vol. 743
UDC:547:615
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
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Downloads:18
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Record is a part of a journal

Title:Science of the total environment
Shortened title:Sci. total environ.
Publisher:Elsevier
ISSN:0048-9697
COBISS.SI-ID:26369024 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:L1-7544
Name:Napredne metode odstranjevanja in spremljanja onesnažil, ki so na prioritetnem seznamu Vodne direktive

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:L1-9191
Name:Prepovedane droge, alkohol in tobak: epidemiologija na osnovi odpadnih vod, uspešnost čiščenja in ranljivost vodnega sistema

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:N1-0047
Name:Zamenjave bisfenola A: prehajanje iz materialov v stiku z živili, kroženje in izpostavljenost ljudi

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J1-8147
Name:Ligandi s tzNHC strukturo v organokovinski kemiji in homogeni katalizi: tvorba vezi C-C in C-N v vodi

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:J2-8162
Name:Zapiranje snovnih poti pri čiščenju komunalnih odpadnih voda z zelenimi tehnologijami

Funder:Drugi - Drug financer ali več financerjev
Project no.:OP20.00365
Name:“Potential of biomass for development of advanced materials and bio-based products”

Funder:EC - European Commission
Project no.:OP20.00365
Name:“Potential of biomass for development of advanced materials and bio-based products”

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
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

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

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