Print Email Facebook Twitter Genome-based microbial ecology of anammox granules in a full-scale wastewater treatment system Title Genome-based microbial ecology of anammox granules in a full-scale wastewater treatment system Author Speth, Daan R. (Radboud Universiteit Nijmegen) In'T Zandt, Michiel H. (Radboud Universiteit Nijmegen) Guerrero-Cruz, Simon (Radboud Universiteit Nijmegen) Dutilh, Bas E. (Universidade Federal do Rio de Janeiro; Universiteit Utrecht; Radboud Universiteit Nijmegen) Jetten, M.S.M. (TU Delft BT/Environmental Biotechnology; Radboud Universiteit Nijmegen) Date 2016 Abstract Partial-nitritation anammox (PNA) is a novel wastewater treatment procedure for energy-efficient ammonium removal. Here we use genome-resolved metagenomics to build a genome-based ecological model of the microbial community in a full-scale PNA reactor. Sludge from the bioreactor examined here is used to seed reactors in wastewater treatment plants around the world; however, the role of most of its microbial community in ammonium removal remains unknown. Our analysis yielded 23 near-complete draft genomes that together represent the majority of the microbial community. We assign these genomes to distinct anaerobic and aerobic microbial communities. In the aerobic community, nitrifying organisms and heterotrophs predominate. In the anaerobic community, widespread potential for partial denitrification suggests a nitrite loop increases treatment efficiency. Of our genomes, 19 have no previously cultivated or sequenced close relatives and six belong to bacterial phyla without any cultivated members, including the most complete Omnitrophica (formerly OP3) genome to date. To reference this document use: http://resolver.tudelft.nl/uuid:2b3832ad-5e5f-483b-b31c-c728c91842e3 DOI https://doi.org/10.1038/ncomms11172 ISSN 2041-1723 Source Nature Communications, 7 Part of collection Institutional Repository Document type journal article Rights © 2016 Daan R. Speth, Michiel H. In'T Zandt, Simon Guerrero-Cruz, Bas E. Dutilh, M.S.M. Jetten Files PDF ncomms11172.pdf 668.99 KB Close viewer /islandora/object/uuid:2b3832ad-5e5f-483b-b31c-c728c91842e3/datastream/OBJ/view