An operational protocol for facilitating start-up of single-stage autotrophic nitrogen-removing reactors based on process stoichiometry
Start-up and operation of single-stage nitritation-anammox sequencing batch reactors (SBRs) for completely autotrophic nitrogen removal can be challenging and far from trivial. In this study, a step-wise procedure is developed based on stoichiometric analysis of the process performance from nitrogen...
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Veröffentlicht in: | Water science and technology 2013-01, Vol.68 (3), p.514-521 |
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creator | MUTLU, A. G VANGSGAARD, A. K SIN, G SMETS, B. F |
description | Start-up and operation of single-stage nitritation-anammox sequencing batch reactors (SBRs) for completely autotrophic nitrogen removal can be challenging and far from trivial. In this study, a step-wise procedure is developed based on stoichiometric analysis of the process performance from nitrogen species measurements to systematically guide start-up and normal operation efforts (instead of trial and error). The procedure is successfully applied to laboratory-scale SBRs for start-up and maintained operation over an 8-month period. This analysis can serve as a strong decision-making tool to take appropriate actions with respect to reactor operation to accelerate start-up or ensure high-rate N removal via the nitritation-anammox pathway. |
doi_str_mv | 10.2166/wst.2013.157 |
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subjects | Applied sciences Autotrophic Processes Batch reactors Bioreactors Decision analysis Decision making Exact sciences and technology General purification processes Models, Theoretical Nitrogen Nitrogen - chemistry Nitrogen - isolation & purification Nitrogen removal Pollution Quaternary Ammonium Compounds - analysis Quaternary Ammonium Compounds - chemistry Reactors Removal Sequencing batch reactor Stoichiometry Waste Water - chemistry Wastewaters Water Purification - methods Water treatment and pollution |
title | An operational protocol for facilitating start-up of single-stage autotrophic nitrogen-removing reactors based on process stoichiometry |
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