Journal article

Analysis of the microbial community structure and function of a laboratory scale enhanced biological phosphorus removal reactor

C Levantesi, LS Serafim, GR Crocetti, PC Lemos, S Rossetti, LL Blackall, MAM Reis, V Tandoi

ENVIRONMENTAL MICROBIOLOGY | BLACKWELL PUBLISHING LTD | Published : 2002

Abstract

A laboratory scale sequencing batch reactor (SBR) operating for enhanced biological phosphorus removal (EBPR) and fed with a mixture of volatile fatty acids (VFAs) showed stable and efficient EBPR capacity over a four-year-period. Phosphorus (P), poly-beta-hydroxyalkanoate (PHA) and glycogen cycling consistent with classical anaerobic/aerobic EBPR were demonstrated with the order of anaerobic VFA uptake being propionate, acetate then butyrate. The SBR was operated without pH control and 63.67 +/- 13.86 mg P l-1 was released anaerobically. The P% of the sludge fluctuated between 6% and 10% over the operating period (average of 8.04 +/- 1.31%). Four main morphological types of floc-forming bac..

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University of Melbourne Researchers