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Evaluating operation strategies and process stability of a single stage nitritation–anammox SBR by use of the oxidation–reduction potential (ORP)

Lackner, Susanne and Horn, Harald (2012):
Evaluating operation strategies and process stability of a single stage nitritation–anammox SBR by use of the oxidation–reduction potential (ORP).
In: Bioresource Technology, pp. 70-77, 107, (0), ISSN 0960-8524,
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0960852411...],
[Article]

Abstract

A single stage nitritation–anammox SBR was operated for 300 days to investigate the impact of cycle operation strategies on process performance and the oxidation–reduction potential (ORP) as process monitoring parameter. Different combinations of feeding (interval, continuous, one-time) and aeration (interval, continuous) strategies were tested revealing that interval feeding and interval aeration was the most suitable case in terms of process performance (ammonium removal, nitrate production and pH stability) and use of the ORP value as indicator parameter. Further investigations into the use of the ORP value showed clear correlations of the ORP slope with the air flow rate and the maximum ORP peak with the ammonium loading under varying operation conditions. Depletion of the main substrates (ammonium and oxygen) was also detectable fastest following the ORP value proofing its worth for process control.

Item Type: Article
Erschienen: 2012
Creators: Lackner, Susanne and Horn, Harald
Title: Evaluating operation strategies and process stability of a single stage nitritation–anammox SBR by use of the oxidation–reduction potential (ORP)
Language: English
Abstract:

A single stage nitritation–anammox SBR was operated for 300 days to investigate the impact of cycle operation strategies on process performance and the oxidation–reduction potential (ORP) as process monitoring parameter. Different combinations of feeding (interval, continuous, one-time) and aeration (interval, continuous) strategies were tested revealing that interval feeding and interval aeration was the most suitable case in terms of process performance (ammonium removal, nitrate production and pH stability) and use of the ORP value as indicator parameter. Further investigations into the use of the ORP value showed clear correlations of the ORP slope with the air flow rate and the maximum ORP peak with the ammonium loading under varying operation conditions. Depletion of the main substrates (ammonium and oxygen) was also detectable fastest following the ORP value proofing its worth for process control.

Journal or Publication Title: Bioresource Technology
Volume: 107
Number: 0
Uncontrolled Keywords: Anaerobic ammonium oxidation (anammox) Oxidation–reduction potential Substrate depletion SBR cycle Process control
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute IWAR > Wastewater Engineering
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR
13 Department of Civil and Environmental Engineering Sciences
Date Deposited: 11 Apr 2018 08:13
Official URL: http://www.sciencedirect.com/science/article/pii/S0960852411...
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