Removal of cyclohexane and ethanol from air in biotrickling filters inoculated with Candida albicans and Candida subhashii

• Autorzy: Rybarczyk Piotr , Marycz Milena , Szulczyński Bartosz , Brillowska-Dąbrowska Anna , Rybarczyk Agnieszka , Gębicki Jacek

Identyfikatory

DOI

10.24425/aep.2021.136445

Warianty tytułu

PL

Usuwanie z powietrza cykloheksanu i etanolu w biofiltrach strużkowych zasiedlonych grzybami Candida albicans i Candida subhashii

• Języki publikacji: EN

Abstrakty

EN

This paper presents investigations on the removal of cyclohexane and ethanol from air in polyurethane- -packed biotrickling filters, inoculated with Candida albicans and Candida subhashii fungal species. Results on process performance together with flow cytometry analyses of the biofilm formed over packing elements are presented and discussed. The results indicate that the presence of ethanol enhances the removal efficiency of cyclohexane from air. This synergistic effect may be attributed to both co-metabolism of cyclohexane with ethanol as well as increased sorption efficiency of cyclohexane to mineral salt medium in the presence of ethanol. Maximum elimination capacities of 89 g m^-3 h^-1 and 36.7 g m^-3 h^-1 were noted for cyclohexane and ethanol, respectively, when a mixture of these compounds was treated in a biofilter inoculated with C. subhashii. Results of flow cytometry analyses after 100 days of biofiltration revealed that about 91% and 88% of cells in biofilm remained actively dividing, respectively for C. albicans and C. subhashii species, indicating their good condition and ability to utilize cyclohexane and ethanol as a carbon source.

PL

W pracy przedstawiono badania nad usuwaniem cykloheksanu i etanolu z powietrza w boifiltrach zraszanych, wypełnionych pianką poliuretanową, zasiedloną grzybami z gatunku Candida albicans i Candida subhashii. Przedstawiono i omówiono wyniki dotyczące wydajności procesu (na podstawie pomiarów techniką chromatografii gazowej) wraz z wynikami cytometrii przepływowej dla utworzonego biofilmu. Uzyskano wartości zdolności usuwania, wynoszące około 89 g m^-3 h^-1 i 36.7 g m^-3 h^-1, odpowiednio dla cykloheksanu i etanolu, gdy te związki jednocześnie poddawano procesowi biofiltracji w biofiltrze zaszczepionym Candida subhashii. Wyniki wskazują, że obecność etanolu powoduje zwiększenie skuteczności usuwania cykloheksanu z powietrza. Wzrost skuteczności usuwania z powietrza cykloheksanu w obecności etanolu może wynikać z polepszonego metabolizmu cykloheksanu w takich warunkach oraz z ograniczenia bariery dla przenikania masy, wskutek lepszych właściwości sorpcyjnych cieczy zraszającej wobec cykloheksanu w obecności etanolu.

Słowa kluczowe

EN

biofilm; flow cytometry; removal efficiency; ethanol; biofiltration; cyclohexane

PL

biofilm; cytometria przepływowa; skuteczność usuwania; etanol; biofiltracja; cykloheksan

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2021
• Tom: Vol. 47, no. 1
• Strony: 26--34
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Rybarczyk Piotr

• Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology

autor

Marycz Milena

• Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology

autor

Szulczyński Bartosz

• Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology

autor

Brillowska-Dąbrowska Anna

• Department of Molecular Biotechnology and Microbiology, Faculty of Chemistry, Gdańsk University of Technology

autor

Rybarczyk Agnieszka

• Department of Histology, Faculty of Medicine, Medical University of Gdańsk

autor

Gębicki Jacek

• Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).