Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 95, Issue -, Pages S88-S92Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2011.03.019
Keywords
Granulation; Nitrogen removal; Organic matter; Sequential batch reactor
Categories
Funding
- Spanish Government [CTQ2005-04935/PPQ, NOVEDAR_Consolider CSD2007-00055]
- Xunta de Galicia [PGIDIT06TAM004]
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Four lab scale sequencing batch reactors (SBRs) were operated to remove organic matter and nitrogen from four different industrial wastewaters. The biomass grew in the reactors in the form of aerobic granules characterized by good settling properties. The high biomass concentrations achieved inside the reactors allowed reducing the solids concentration in the effluent down to 0.2 g VSS L-1. The organic loading rates (OLR) applied to reactors ranged between 0.7 and 5.0 g COD L-1 d(-1) with removal efficiencies of 60-95%. The nitrogen loading rates (NLR) applied varied between 0.15 and 0.65 g NH4+-N L-1 d(-1) with variable removal efficiencies in the four systems (between 15% and 76%). (C) 2011 Elsevier Ltd. All rights reserved.
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