Version 1
: Received: 20 September 2024 / Approved: 20 September 2024 / Online: 20 September 2024 (15:33:05 CEST)
How to cite:
Petrilli, R.; Fabbretti, A.; Pucci, K.; Pagliaretta, G.; Napolioni, V.; Falconi, M. Development and Characterization of Ammonia Removal Moving Bed Biofilms for Landfill Leachate Treatment. Preprints2024, 2024091631. https://doi.org/10.20944/preprints202409.1631.v1
Petrilli, R.; Fabbretti, A.; Pucci, K.; Pagliaretta, G.; Napolioni, V.; Falconi, M. Development and Characterization of Ammonia Removal Moving Bed Biofilms for Landfill Leachate Treatment. Preprints 2024, 2024091631. https://doi.org/10.20944/preprints202409.1631.v1
Petrilli, R.; Fabbretti, A.; Pucci, K.; Pagliaretta, G.; Napolioni, V.; Falconi, M. Development and Characterization of Ammonia Removal Moving Bed Biofilms for Landfill Leachate Treatment. Preprints2024, 2024091631. https://doi.org/10.20944/preprints202409.1631.v1
APA Style
Petrilli, R., Fabbretti, A., Pucci, K., Pagliaretta, G., Napolioni, V., & Falconi, M. (2024). Development and Characterization of Ammonia Removal Moving Bed Biofilms for Landfill Leachate Treatment. Preprints. https://doi.org/10.20944/preprints202409.1631.v1
Chicago/Turabian Style
Petrilli, R., Valerio Napolioni and Maurizio Falconi. 2024 "Development and Characterization of Ammonia Removal Moving Bed Biofilms for Landfill Leachate Treatment" Preprints. https://doi.org/10.20944/preprints202409.1631.v1
Abstract
Urbanization growth has intensified the challenge of managing and treating increasing amounts of municipal solid waste (MSW). Landfills are commonly utilized for MSW disposal because of their low construction and operation costs. However, this practice produces huge volumes of landfill leachate, a highly polluting liquid rich in ammoniacal nitrogen (NH3-N), organic compounds and various heavy metals, making it difficult to treat in conventional municipal wastewater treatment plants (WWTPs). In recent years, research has shown that microbial biofilms, developed on carriers of different materials and called “Moving Bed Biofilm Reactors” (MBBRs), may offer promising solutions for bioremediation. This study explored the biofilm development and the nitrification process of moving bed biofilms (MBBs) obtained from high am-monia-selected microbial communities. Using Crystal Violet Staining and Confocal Laser-Scanning Microscopy, we followed the biofilm formation stages correlating nitrogen removal to metagenomic analyses. Our results indicate that MBBs unveiled a 10-fold more enhanced nitrification rate than the dispersed microbial community pre-sent in the native sludge of the Porto Sant’Elpidio (Italy) WWTP. Four bacterial families, Chitinophagaceae, Comamonadaceae, Sphingomonadaceae, and Nitrosomona-daceae accumulate in structured biofilms and significantly contribute to the high ammonium removal rate of 80% in 24 hours as estimated in leachate-containing wastewaters.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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