Environmental life cycle assessment of different biorefinery platforms valorizing municipal solid waste to bioenergy, microbial protein, lactic and succinic acid

Benyamin Khoshnevisan*, Meisam Tabatabaei, Panagiotis Tsapekos, Shahin Rafiee, Mortaza Aghbashlo, Susanne Lindeneg, Irini Angelidaki

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The progressive exhaustion of fossil energy resources and the environmental problems provoked by the excessive use of these resources have driven us to transit from a fossil fuel dependent economy to a more bio-based economy. In this regard, exploiting the organic fraction of municipal solid waste (OFMSW) for producing high value bioproducts and bioenergy under a biorefinery approach has attracted great interest. This paper presents the state of the art of urban biowaste biorefinery concepts. Accordingly, different novel valorization pathways, namely single cell protein, biosuccinic acid, and lactic acid, as well as bioenergy production were consolidated into some scenarios. Moreover, successfully tested hydrogen-assisted biological biogas upgrading was also incorporated into some scenarios as energy source for methanotrophs to upcycle nitrogen rich digestate into single cell protein. Upon the successful lab-scale experiments, different biorefinery platforms were developed and their sustainability was environmentally scrutinized using consequential life cycle assessment. The results obtained herein demonstrated that despite having different net environmental benefits, all the developed scenarios were eco-friendly solutions for valorizing biowaste into bioproducts and bioenergy. Scenarios including microbial protein production led to a saving of −58 to −147 kg CO2,eq/t biopulp in Climate change category, depending on the biorefining pathway. The net saving in Climate change category achieved for Succinic acid- and Lactic acid-based biorefinery was estimated at −73 and −173 kg CO2,eq/t biopulp, respectively. Biological biogas upgrading, if implemented, could increase energy payback by 9724 MJ/t biopulp and contribute more to the sustainability of other developed scenarios. Although scenarios with the main focus on bioenergy production outperformed others in terms of environmental sustainability, some complementary factors such as policy decisions, energy directives, economic issues, and carbon trade schemes must be taken into account in order to introduce the best valorization pathway.

Original languageEnglish
Article number109493
JournalRenewable and Sustainable Energy Reviews
Volume117
Number of pages16
ISSN1364-0321
DOIs
Publication statusPublished - 2020

Keywords

  • Biorefinery
  • Circular bioeconomy
  • Lactic acid
  • Municipal solid waste
  • Single cell protein
  • Succinic acid

Cite this

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title = "Environmental life cycle assessment of different biorefinery platforms valorizing municipal solid waste to bioenergy, microbial protein, lactic and succinic acid",
abstract = "The progressive exhaustion of fossil energy resources and the environmental problems provoked by the excessive use of these resources have driven us to transit from a fossil fuel dependent economy to a more bio-based economy. In this regard, exploiting the organic fraction of municipal solid waste (OFMSW) for producing high value bioproducts and bioenergy under a biorefinery approach has attracted great interest. This paper presents the state of the art of urban biowaste biorefinery concepts. Accordingly, different novel valorization pathways, namely single cell protein, biosuccinic acid, and lactic acid, as well as bioenergy production were consolidated into some scenarios. Moreover, successfully tested hydrogen-assisted biological biogas upgrading was also incorporated into some scenarios as energy source for methanotrophs to upcycle nitrogen rich digestate into single cell protein. Upon the successful lab-scale experiments, different biorefinery platforms were developed and their sustainability was environmentally scrutinized using consequential life cycle assessment. The results obtained herein demonstrated that despite having different net environmental benefits, all the developed scenarios were eco-friendly solutions for valorizing biowaste into bioproducts and bioenergy. Scenarios including microbial protein production led to a saving of −58 to −147 kg CO2,eq/t biopulp in Climate change category, depending on the biorefining pathway. The net saving in Climate change category achieved for Succinic acid- and Lactic acid-based biorefinery was estimated at −73 and −173 kg CO2,eq/t biopulp, respectively. Biological biogas upgrading, if implemented, could increase energy payback by 9724 MJ/t biopulp and contribute more to the sustainability of other developed scenarios. Although scenarios with the main focus on bioenergy production outperformed others in terms of environmental sustainability, some complementary factors such as policy decisions, energy directives, economic issues, and carbon trade schemes must be taken into account in order to introduce the best valorization pathway.",
keywords = "Biorefinery, Circular bioeconomy, Lactic acid, Municipal solid waste, Single cell protein, Succinic acid",
author = "Benyamin Khoshnevisan and Meisam Tabatabaei and Panagiotis Tsapekos and Shahin Rafiee and Mortaza Aghbashlo and Susanne Lindeneg and Irini Angelidaki",
year = "2020",
doi = "10.1016/j.rser.2019.109493",
language = "English",
volume = "117",
journal = "Renewable & Sustainable Energy Reviews",
issn = "1364-0321",
publisher = "Pergamon Press",

}

Environmental life cycle assessment of different biorefinery platforms valorizing municipal solid waste to bioenergy, microbial protein, lactic and succinic acid. / Khoshnevisan, Benyamin; Tabatabaei, Meisam; Tsapekos, Panagiotis; Rafiee, Shahin; Aghbashlo, Mortaza; Lindeneg, Susanne; Angelidaki, Irini.

In: Renewable and Sustainable Energy Reviews, Vol. 117, 109493, 2020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Environmental life cycle assessment of different biorefinery platforms valorizing municipal solid waste to bioenergy, microbial protein, lactic and succinic acid

AU - Khoshnevisan, Benyamin

AU - Tabatabaei, Meisam

AU - Tsapekos, Panagiotis

AU - Rafiee, Shahin

AU - Aghbashlo, Mortaza

AU - Lindeneg, Susanne

AU - Angelidaki, Irini

PY - 2020

Y1 - 2020

N2 - The progressive exhaustion of fossil energy resources and the environmental problems provoked by the excessive use of these resources have driven us to transit from a fossil fuel dependent economy to a more bio-based economy. In this regard, exploiting the organic fraction of municipal solid waste (OFMSW) for producing high value bioproducts and bioenergy under a biorefinery approach has attracted great interest. This paper presents the state of the art of urban biowaste biorefinery concepts. Accordingly, different novel valorization pathways, namely single cell protein, biosuccinic acid, and lactic acid, as well as bioenergy production were consolidated into some scenarios. Moreover, successfully tested hydrogen-assisted biological biogas upgrading was also incorporated into some scenarios as energy source for methanotrophs to upcycle nitrogen rich digestate into single cell protein. Upon the successful lab-scale experiments, different biorefinery platforms were developed and their sustainability was environmentally scrutinized using consequential life cycle assessment. The results obtained herein demonstrated that despite having different net environmental benefits, all the developed scenarios were eco-friendly solutions for valorizing biowaste into bioproducts and bioenergy. Scenarios including microbial protein production led to a saving of −58 to −147 kg CO2,eq/t biopulp in Climate change category, depending on the biorefining pathway. The net saving in Climate change category achieved for Succinic acid- and Lactic acid-based biorefinery was estimated at −73 and −173 kg CO2,eq/t biopulp, respectively. Biological biogas upgrading, if implemented, could increase energy payback by 9724 MJ/t biopulp and contribute more to the sustainability of other developed scenarios. Although scenarios with the main focus on bioenergy production outperformed others in terms of environmental sustainability, some complementary factors such as policy decisions, energy directives, economic issues, and carbon trade schemes must be taken into account in order to introduce the best valorization pathway.

AB - The progressive exhaustion of fossil energy resources and the environmental problems provoked by the excessive use of these resources have driven us to transit from a fossil fuel dependent economy to a more bio-based economy. In this regard, exploiting the organic fraction of municipal solid waste (OFMSW) for producing high value bioproducts and bioenergy under a biorefinery approach has attracted great interest. This paper presents the state of the art of urban biowaste biorefinery concepts. Accordingly, different novel valorization pathways, namely single cell protein, biosuccinic acid, and lactic acid, as well as bioenergy production were consolidated into some scenarios. Moreover, successfully tested hydrogen-assisted biological biogas upgrading was also incorporated into some scenarios as energy source for methanotrophs to upcycle nitrogen rich digestate into single cell protein. Upon the successful lab-scale experiments, different biorefinery platforms were developed and their sustainability was environmentally scrutinized using consequential life cycle assessment. The results obtained herein demonstrated that despite having different net environmental benefits, all the developed scenarios were eco-friendly solutions for valorizing biowaste into bioproducts and bioenergy. Scenarios including microbial protein production led to a saving of −58 to −147 kg CO2,eq/t biopulp in Climate change category, depending on the biorefining pathway. The net saving in Climate change category achieved for Succinic acid- and Lactic acid-based biorefinery was estimated at −73 and −173 kg CO2,eq/t biopulp, respectively. Biological biogas upgrading, if implemented, could increase energy payback by 9724 MJ/t biopulp and contribute more to the sustainability of other developed scenarios. Although scenarios with the main focus on bioenergy production outperformed others in terms of environmental sustainability, some complementary factors such as policy decisions, energy directives, economic issues, and carbon trade schemes must be taken into account in order to introduce the best valorization pathway.

KW - Biorefinery

KW - Circular bioeconomy

KW - Lactic acid

KW - Municipal solid waste

KW - Single cell protein

KW - Succinic acid

U2 - 10.1016/j.rser.2019.109493

DO - 10.1016/j.rser.2019.109493

M3 - Journal article

VL - 117

JO - Renewable & Sustainable Energy Reviews

JF - Renewable & Sustainable Energy Reviews

SN - 1364-0321

M1 - 109493

ER -