Persistent contaminants of emerging concern in ozone‐biofiltration systems: Analysis from multiple studies. Issue 5 (18th October 2020)

• Record Type: Journal Article
• Authors: Sari, Mutiara Ayu; Oppenheimer, Joan; Robinson, Keel; Drewes, Jörg E.; Pisarenko, Aleksey N.; Sundaram, Vijay; Jacangelo, Joseph G.
• Is Part Of: AWWA water science. Volume 2:Issue 5(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-10-18
• Subjects: biological activated carbon -- biologically active filtration -- contaminants of emerging concern -- ozonation -- potable water reuse -- wastewater; Water -- Analysis -- Periodicals; Water-supply engineering -- Periodicals; Water -- Social aspects -- Periodicals; Water -- Purification -- Periodicals; Water-supply engineering; Water -- Social aspects; Water -- Analysis; Electronic journals; Periodicals; 628.162
• DOI: 10.1002/aws2.1193
• Languages: English
• ISSNs: 2577-8161

Abstract

Abstract: 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.