Low temperature anaerobic biotreatment of priority pollutants

Vincent O'Flaherty; Gavin Collins; Therese Mahony

doi:10.2166/wst.2008.056

Low temperature anaerobic biotreatment of priority pollutants

Vincent O'Flaherty, Gavin Collins, Therese Mahony

University of Galway

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

2 Citations (Scopus)

Abstract

The effect of low operating temperature and pollutant concentration on the performance of five anaerobic hybrid reactors was investigated. Stable and efficient long- term (. 400 days) treatment of a cold ( 6 - 13 degrees C), volatile fatty acid ( VFA)- based, wastewater was achieved at applied organic loading rates ( OLRs) of 5 kg chemical oxygen demand ( COD) m(-3) d(-1) with COD removal efficiencies c. 84% at 6 degrees C ( sludge loading rate ( SLR) 1.04 - 1.46 kg COD kg [ VSS](-1) d(-1)). VFA- based wastewaters, containing up to 14 g pentachlorophenol ( PCP) m(-3) d(-1) or 155 g toluene m(-3) d(-1) were successfully treated at applied OLRs of 5 - 7 kg COD m(-3) d(-1). Despite transient declines in reactor performance in response to increasing toxicant loading rates, stable operation ( COD removal efficiencies. 90%) and satisfactory toxicant removal efficiencies (. 88%) were demonstrated by the systems.

Original language	English (Ireland)
Pages (from-to)	499-503
Number of pages	4
Journal	Water Science And Technology
Volume	57
Issue number	4
DOIs	https://doi.org/10.2166/wst.2008.056
Publication status	Published - 1 Jan 2008

Keywords

Bioremediation
LTAD (low temperature anaerobic digestion)
Priority pollutants

Authors (Note for portal: view the doc link for the full list of authors)

Authors
McKeown, RM;Collins, G;Chinalia, FA;Mahony, T;O'Flaherty, V

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2166/wst.2008.056

Cite this

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title = "Low temperature anaerobic biotreatment of priority pollutants",

abstract = "The effect of low operating temperature and pollutant concentration on the performance of five anaerobic hybrid reactors was investigated. Stable and efficient long- term (. 400 days) treatment of a cold ( 6 - 13 degrees C), volatile fatty acid ( VFA)- based, wastewater was achieved at applied organic loading rates ( OLRs) of 5 kg chemical oxygen demand ( COD) m(-3) d(-1) with COD removal efficiencies c. 84\% at 6 degrees C ( sludge loading rate ( SLR) 1.04 - 1.46 kg COD kg [ VSS](-1) d(-1)). VFA- based wastewaters, containing up to 14 g pentachlorophenol ( PCP) m(-3) d(-1) or 155 g toluene m(-3) d(-1) were successfully treated at applied OLRs of 5 - 7 kg COD m(-3) d(-1). Despite transient declines in reactor performance in response to increasing toxicant loading rates, stable operation ( COD removal efficiencies. 90\%) and satisfactory toxicant removal efficiencies (. 88\%) were demonstrated by the systems.",

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N2 - The effect of low operating temperature and pollutant concentration on the performance of five anaerobic hybrid reactors was investigated. Stable and efficient long- term (. 400 days) treatment of a cold ( 6 - 13 degrees C), volatile fatty acid ( VFA)- based, wastewater was achieved at applied organic loading rates ( OLRs) of 5 kg chemical oxygen demand ( COD) m(-3) d(-1) with COD removal efficiencies c. 84% at 6 degrees C ( sludge loading rate ( SLR) 1.04 - 1.46 kg COD kg [ VSS](-1) d(-1)). VFA- based wastewaters, containing up to 14 g pentachlorophenol ( PCP) m(-3) d(-1) or 155 g toluene m(-3) d(-1) were successfully treated at applied OLRs of 5 - 7 kg COD m(-3) d(-1). Despite transient declines in reactor performance in response to increasing toxicant loading rates, stable operation ( COD removal efficiencies. 90%) and satisfactory toxicant removal efficiencies (. 88%) were demonstrated by the systems.

AB - The effect of low operating temperature and pollutant concentration on the performance of five anaerobic hybrid reactors was investigated. Stable and efficient long- term (. 400 days) treatment of a cold ( 6 - 13 degrees C), volatile fatty acid ( VFA)- based, wastewater was achieved at applied organic loading rates ( OLRs) of 5 kg chemical oxygen demand ( COD) m(-3) d(-1) with COD removal efficiencies c. 84% at 6 degrees C ( sludge loading rate ( SLR) 1.04 - 1.46 kg COD kg [ VSS](-1) d(-1)). VFA- based wastewaters, containing up to 14 g pentachlorophenol ( PCP) m(-3) d(-1) or 155 g toluene m(-3) d(-1) were successfully treated at applied OLRs of 5 - 7 kg COD m(-3) d(-1). Despite transient declines in reactor performance in response to increasing toxicant loading rates, stable operation ( COD removal efficiencies. 90%) and satisfactory toxicant removal efficiencies (. 88%) were demonstrated by the systems.

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Low temperature anaerobic biotreatment of priority pollutants

Abstract

Keywords

Authors (Note for portal: view the doc link for the full list of authors)

UN SDGs

Access to Document

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