Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content

Nena Kroghsbo, Janna Nicolaisen, Henrik Wenzel, Birgitte Lilholt Sørensen

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Abstract

Alternative scenarios for the wastewater and sludge treatment configurations in urban wastewater treatment were studied with the aim of comparing their environmental aspects. As the reference, a conventional activated sludge treatment was chosen including a primary settling and biogas made from the mixed primary and secondary sludge. This reference was then compared to an alternative use of the mixed sludge for the fermentative generation of polyhydroxyalkanoates, PHA and subsequent use of the PHA to substitute polypropylene on the polymer markets. This comparison allows for assessing the environmental priorities between biogas and PHA formation from the carbon content of the sludge. Further, the elimination of the primary settling with the aim of using the carbon content of the wastewater for enhanced nitrogen removal in the activated sludge process was studied. This comparison allows for assessing the environmental priorities between using the carbon for nutrient removal through denitrification and energy production/recovery through biogas or PHA. The preliminary results and conclusions of the study will be presented.
Original languageEnglish
Publication date2008
Number of pages1
Publication statusPublished - 2008
EventMixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application' - Lund, Sweden
Duration: 9. Jun 200810. Jun 2008
Conference number: 2

Conference

ConferenceMixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application'
Number2
CountrySweden
CityLund
Period09/06/200810/06/2008

Fingerprint

biogas
life cycle
sludge
wastewater
activated sludge
carbon
denitrification
polymer
market
nitrogen
environmental priority
sludge treatment
wastewater treatment
comparison

Keywords

  • Wastewater sludge, Life Cycle Assessment, PHA, polyhydroxyalkanoates, biogas, nitrogen removal

Cite this

Kroghsbo, N., Nicolaisen, J., Wenzel, H., & Sørensen, B. L. (2008). Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content. Abstract from Mixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application', Lund, Sweden.
Kroghsbo, Nena ; Nicolaisen, Janna ; Wenzel, Henrik ; Sørensen, Birgitte Lilholt. / Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content. Abstract from Mixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application', Lund, Sweden.1 p.
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abstract = "Alternative scenarios for the wastewater and sludge treatment configurations in urban wastewater treatment were studied with the aim of comparing their environmental aspects. As the reference, a conventional activated sludge treatment was chosen including a primary settling and biogas made from the mixed primary and secondary sludge. This reference was then compared to an alternative use of the mixed sludge for the fermentative generation of polyhydroxyalkanoates, PHA and subsequent use of the PHA to substitute polypropylene on the polymer markets. This comparison allows for assessing the environmental priorities between biogas and PHA formation from the carbon content of the sludge. Further, the elimination of the primary settling with the aim of using the carbon content of the wastewater for enhanced nitrogen removal in the activated sludge process was studied. This comparison allows for assessing the environmental priorities between using the carbon for nutrient removal through denitrification and energy production/recovery through biogas or PHA. The preliminary results and conclusions of the study will be presented.",
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Kroghsbo, N, Nicolaisen, J, Wenzel, H & Sørensen, BL 2008, 'Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content', Mixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application', Lund, Sweden, 09/06/2008 - 10/06/2008.

Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content. / Kroghsbo, Nena; Nicolaisen, Janna; Wenzel, Henrik; Sørensen, Birgitte Lilholt.

2008. Abstract from Mixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application', Lund, Sweden.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

TY - ABST

T1 - Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content

AU - Kroghsbo, Nena

AU - Nicolaisen, Janna

AU - Wenzel, Henrik

AU - Sørensen, Birgitte Lilholt

PY - 2008

Y1 - 2008

N2 - Alternative scenarios for the wastewater and sludge treatment configurations in urban wastewater treatment were studied with the aim of comparing their environmental aspects. As the reference, a conventional activated sludge treatment was chosen including a primary settling and biogas made from the mixed primary and secondary sludge. This reference was then compared to an alternative use of the mixed sludge for the fermentative generation of polyhydroxyalkanoates, PHA and subsequent use of the PHA to substitute polypropylene on the polymer markets. This comparison allows for assessing the environmental priorities between biogas and PHA formation from the carbon content of the sludge. Further, the elimination of the primary settling with the aim of using the carbon content of the wastewater for enhanced nitrogen removal in the activated sludge process was studied. This comparison allows for assessing the environmental priorities between using the carbon for nutrient removal through denitrification and energy production/recovery through biogas or PHA. The preliminary results and conclusions of the study will be presented.

AB - Alternative scenarios for the wastewater and sludge treatment configurations in urban wastewater treatment were studied with the aim of comparing their environmental aspects. As the reference, a conventional activated sludge treatment was chosen including a primary settling and biogas made from the mixed primary and secondary sludge. This reference was then compared to an alternative use of the mixed sludge for the fermentative generation of polyhydroxyalkanoates, PHA and subsequent use of the PHA to substitute polypropylene on the polymer markets. This comparison allows for assessing the environmental priorities between biogas and PHA formation from the carbon content of the sludge. Further, the elimination of the primary settling with the aim of using the carbon content of the wastewater for enhanced nitrogen removal in the activated sludge process was studied. This comparison allows for assessing the environmental priorities between using the carbon for nutrient removal through denitrification and energy production/recovery through biogas or PHA. The preliminary results and conclusions of the study will be presented.

KW - Wastewater sludge, Life Cycle Assessment, PHA, polyhydroxyalkanoates, biogas, nitrogen removal

M3 - Conference abstract for conference

ER -

Kroghsbo N, Nicolaisen J, Wenzel H, Sørensen BL. Comparative Environmental Life Cycle Assessment of Alternative Uses of Wastewater Carbon Content. 2008. Abstract from Mixed Culture Polyhydroxyalkanoate Production Workshop II: 'From Waste Organics to Biopolymer to Application', Lund, Sweden.