Influence of dissolved oxygen concentration on the start-up of the anammox-based process: ELAN®
作者： N Morales , A Val del Rio , JR Vázquez-Padín , R Gutiérrez , R Fernández-González
DOI: 10.2166/WST.2015.233
关键词:
摘要: The anammox-based process ELAN ® was started-up in two different sequencing batch reactor (SBR) pilot plant reactors treating municipal anaerobic digester supernatant. main difference the operation of both dissolved oxygen (DO) concentration bulk liquid. SBR-1 started at a DO value 0.4 mg O 2 /L whereas SBR-2 values 3.0 /L. Despite working nitrogen removal rate around 0.6 g N/(L d), SBR-1, granules represented only small fraction total biomass and reached diameter 1.1 mm after 7 months operation, while mainly composed with an average 3.2 same operational period. Oxygen microelectrode profiling revealed that from where fully penetrated by concentrations 8 were already 1 In this way performed better due to thick layer ammonia oxidizing bacteria, which accounted for up 20% all microbial populations, protected anammox bacteria non-suitable liquid media conditions.
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