Competition between polyphosphate and polysaccharide accumulating bacteria in enhanced biological phosphate removal systems

The competition between polyphosphate accumulating bacteria (PP bacteria) and another group of microorganisms (tentatively named “G bacteria”) has been observed in laboratory sequencing batch reactors exhibiting enhanced biological phosphate removal (EBPR). The “G bacteria”, which accumulate polysac...

Full description

Saved in:
Bibliographic Details
Published in:Water research (Oxford) 1993, Vol.27 (7), p.1219-1225
Main Authors: Cech, Jakub S., Hartman, Petr
Format: Article
Language:English
Subjects:
activated sludge
Applied sciences
bacteria
Exact sciences and technology
General purification processes
phosphate removal
Pollution
polyphosphate
polysaccharide
population dynamics
Wastewaters
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The competition between polyphosphate accumulating bacteria (PP bacteria) and another group of microorganisms (tentatively named “G bacteria”) has been observed in laboratory sequencing batch reactors exhibiting enhanced biological phosphate removal (EBPR). The “G bacteria”, which accumulate polysaccharide instead of polyphosphate, were able to dominate the anaerobic-oxic system even though acetic acid was readily available. When acetate was used as the sole source of organic carbon in an anaerobic-oxic sequencing batch reactor, however, PP bacteria successfully competed for acetate with “G bacteria”. The molar ratio of phosphate released to acetate taken up in the anaerobic stage varied from 0 to 0.78 and depended on the ratio of the numbers of PP bacteria to “G bacteria” in the activated sludge.
ISSN:0043-1354
1879-2448
DOI:10.1016/0043-1354(93)90014-9