Microbial community dynamics in an ANAMMOX reactor for piggery wastewater treatment with startup, raising nitrogen load, and stable performance.

ABSTRACT: Bacterial community dynamics of the ANAMMOX reactor of an integrated "UASB + SHARON + ANAMMOX" system for treating piggery wastewater were investigated using the Illumina MiSeq method with samples obtained at ~ 2-week intervals during a 314-day period. With aerobic activated sludge as seeds and low content artificial wastewater (NH₄⁺-N 50 mg/L; NO₂^--N 55 mg/L) as influent for the ANAMMOX reactor, nitrogen removal was initially observed on day 38 with a removal rate 1.3 mg N L^-1 day^-1, and increased to 90.4 mg N L^-1 day^-1 on day 55 with almost complete removal of ammonia and nitrite, indicating a successful startup of the reactor. Increasing influent load stepwise to NH₄⁺-N 272.7 mg

SUBMITTER: Huang Q 

PROVIDER: S-EPMC6167272 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature