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Persistent contaminants of emerging concern in ozone‐biofiltration systems: Analysis from multiple studies
Author(s) -
Sari Mutiara Ayu,
Oppenheimer Joan,
Robinson Keel,
Drewes Jörg E.,
Pisarenko Aleksey N.,
Sundaram Vijay,
Jacangelo Joseph G.
Publication year - 2020
Publication title -
awwa water science
Language(s) - English
Resource type - Journals
ISSN - 2577-8161
DOI - 10.1002/aws2.1193
Subject(s) - filtration (mathematics) , ozone , environmental science , reuse , benchmark (surveying) , biofilter , contamination , biochemical engineering , environmental engineering , computer science , waste management , chemistry , engineering , mathematics , statistics , ecology , biology , organic chemistry , geodesy , geography
Water quality, in combination with design and operational data collected from multiple studies, was assessed to benchmark the performance of ozone‐biologically active filtration in reuse applications. A total of 149 contaminants of emerging concern, representative of multiple categories and chemical structures, were prioritized and systematically compared to elucidate apparent differences in removal capabilities as affected by multiple factors such as influent water matrix, ozone‐to‐organic carbon ratio, empty bed contact time, filtration media type, and initial media condition. The results were consistent with earlier findings for the removal of highly amenable compounds but demonstrate inconsistencies and knowledge gaps across multiple facilities for the more persistent compounds. Analysis of this multistudy data‐mining effort also demonstrates a complicated interplay between contaminant removal and numerous design and operational variables. Hence, further systematic investigation is warranted to elucidate the underlying removal mechanisms.