Cited by 1,528Algal biology and biofuel productionEnvironmental Impact and SustainabilityBiodiesel Production and Applications

Life-Cycle Assessment of Biodiesel Production from Microalgae

Lardon, Laurent, Hélias, Arnaud, Sialve, Bruno, Steyer, Jean-Philippe, Bernard, Olivier·2009·Environmental Science & Technology

Abstract

This paper provides an analysis of the potential environmental impacts of biodiesel production from microalgae. High production yields of microalgae have called forth interest of economic and scientific actors but it is still unclear whether the production of biodiesel is environmentally interesting and which transformation steps need further adjustment and optimization. A comparative LCA study of a virtual facility has been undertaken to assessthe energetic balance and the potential environmental impacts of the whole process chain, from the biomass production to the biodiesel combustion. Two different culture conditions, nominal fertilizing or nitrogen starvation, as well as two different extraction options, dry or wet extraction, have been tested. The best scenario has been compared to first generation biodiesel and oil diesel. The outcome confirms the potential of microalgae as an energy source but highlights the imperative necessity of decreasing the energy and fertilizer consumption. Therefore control of nitrogen stress during the culture and optimization of wet extraction seem to be valuable options. This study also emphasizes the potential of anaerobic digestion of oilcakes as a way to reduce external energy demand and to recycle a part of the mineral fertilizers.

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Crossref · 10.1021/es900705j

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Authors
Lardon, L., Hélias, A., Sialve, B., Steyer, J.-P., & Bernard, O.
Affiliations
  • Institut national de recherche en sciences et technologies du numérique (FR)
  • INRA, UR50 Laboratoire de Biotechnologie de l’Environnement, Avenue des Etangs, 11100 Narbonne, France, Montpellier SupAgro, 2 Place Pierre Viala, 34060 Montpellier Cedex 1, France, and Comore, INRIA, BP93, Sophia-Antipolis Cedex 06902, France
Corresponding author
Lardon, Laurent
Venue
Environmental Science & Technology
Published
2009-07-27
Volume
43
Issue
17
Pages
6475-6481
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2024900147
Cited by
1,528
References
35
Citations by year
2026: 36 · 2025: 42 · 2024: 47 · 2023: 35 · 2022: 54 · 2021: 79 · 2020: 93 · 2019: 96 · 2018: 92 · 2017: 121 · 2016: 113 · 2015: 147 · 2014: 161 · 2013: 147 · 2012: 134
FWCI
41.35
Type
journal article
Language
en
Open access
closed
Locations
  • Environmental Science & Technology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
Agence Nationale de la Recherche
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Environmental Engineering › Environmental Impact and Sustainability
  • Physical Sciences › Engineering › Biomedical Engineering › Biodiesel Production and Applications
Keywords
microalgae, biodiesel, life cycle assessment, nitrogen starvation, wet extraction, dry extraction, anaerobic digestion, oil cake, fertilizer use, energy balance, environmental impact
MeSH terms
Biotechnology, Energy-Generating Resources, Gasoline, Biomass, Chlorella vulgaris

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