EVIDENCE OF DECHLOROMONAS Sp. PARTICIPATING IN ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL (EBPR) IN A BENCH-SCALE AERATED-ANOXIC REACTOR
Abstract:This study investigated the addition of small amounts of dissolved oxygen during the anaerobic stage of enhanced biological phosphorus removal (EBPR). Bench scale EBPR reactors were bubbled with N2 gas amended with 0.3%, 0.6% and 1.2% oxygen during the anaerobic period of operation. A phosphorus removal efficiency ranging from 84 to 95% was achieved depending upon the amounts of oxygen added during the anaerobic period. The microbial diversity in the reactors, monitored using fluorescent in situ hybridization (FISH), revealed enrichment of Rhodocyclus-related microorganisms. A finer scale analysis using 16S rRNA gene cloning and sequencing, showed that DECHLOROMONAS sp. instead of Cand. A. phosphatis were enriched under all three operational modes tested.
Document Type: Research Article
Publication date: 2005-01-01
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites