Title

The Effect Of Fermentation Products On Enhanced Biological Phosphorus Removal, Polyphosphate Storage, And Microbial Population Dynamics

Keywords

Carboxylic acid; Chaotic; Enhanced biological phosphorus removal (EBPR); Nuclear magnetic resonance (NMR); Polyphosphate polyP; Population dynamics; Pseudomonas

Abstract

Using anaerobic/aerobic sequencing batch reactors (SBRs) it was found that pre-fermentation of influent glucose resulted in a microbial population capable of enhanced biological phosphorus removal (EBPR). Batch tests indicated the C1-C5 carboxylic acids, typically improved phosphorus removal. Using NMR spectroscopy it was observed that intracellular forms and locations of phosphorus did not change regardless of the substrate received. Polyphosphate (polyP) was present throughout the cells at the end of aerobiosis. It then degraded to inorganic phosphate via a zero-order enzymatic reaction concentrated at the cell membrane. Pseudomonas and Bacillus were numerous in the glucose system but were not isolated from the starch system. Aeromonas were dominant in the starch system. Although the glucose system showed better phosphorus removal than the starch system, it also showed greater variability. Phosphorus removal varied in a chaotic, but bounded, manner, probably due to population dynamics.

Publication Date

1-1-1994

Publication Title

Water Science and Technology

Volume

30

Issue

6 pt 6

Number of Pages

213-219

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.2166/wst.1994.0271

Socpus ID

0028559829 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028559829

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