The metabolic activity of denitrifying microorganisms accumulating polyphosphate in response to addition of fusel oil.

ABSTRACT: The effect of distillery waste product (fusel oil) as an alternative external organic carbon source (EOCS) was investigated in terms of the metabolic properties of denitrifying polyphosphate accumulating organisms (DPAOs). Samples of the non-acclimated biomass were collected from a local full-scale wastewater treatment plant employing A²/O type bioreactors. The acclimated biomass was obtained after cultivation (with fusel oil added) in a bench-scale reactor with a process configuration similar to the full-scale bioreactor. Changes in the functional properties of the biomass were investigated by measuring the phosphate release/uptake rates (PRRs and PURs), and nitrate utilization rates (NURs) with fusel oil in anaerobic-anoxic batch tests. Furthermore, a validated extended Activa

SUBMITTER: Tuszynska A 

PROVIDER: S-EPMC6329743 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature