Community structure of partial nitritation-anammox biofilms at decreasing substrate concentrations and low temperature.

ABSTRACT: Partial nitritation-anammox (PNA) permits energy effective nitrogen removal. Today PNA is used for treatment of concentrated and warm side streams at wastewater treatment plants, but not the more diluted and colder main stream. To implement PNA in the main stream, better knowledge about microbial communities at the typical environmental conditions is necessary. In order to investigate the response of PNA microbial communities to decreasing substrate availability, we have operated a moving bed biofilm reactor (MBBR) at decreasing reactor concentrations (311-27 mg-N l^-1 of ammonium) and low temperature (13°C) for 302 days and investigated the biofilm community using high throughput amplicon sequencing; quantitative PCR; and fluorescence in situ hybridization. The anammox bacteria

SUBMITTER: Persson F 

PROVIDER: S-EPMC5481546 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature