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Biofuel or excavation? - Life cycle assessment (LCA) of soil remediation options
Statens geotekniska institut.
Statens geotekniska institut.
2011 (Engelska)Ingår i: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 35, nr 2, s. 969-981Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The environmental consequences of soil remediation through biofuel or through dig and dump were compared using life cycle assessment (LCA). Willow (Salix viminalis) was actually grown in situ on a discontinued oil depot, as a phytoremediation treatment. These data were used for the biofuel remediation, while excavation and refill data were estimated from experience. The biofuel remediation had great environmental advantages compared to the ex situ excavation remediation. With the ReCiPe impact assessment method, which included biodiversity, the net environmental effect was even positive, in spite of the fact that the wood harvest was not utilised for biofuel production, but left on the contaminated site. Impact from the Salix viminalis cultivation was mainly tbrough land use for the short rotation coppice, and through journeys of control personnel. The latter may be reduced when familiarity with biofuel as a soil treatment method increases. The excavation and refill remediation was dominated by the landfill and the transport of contaminated soil and backfill.

Ort, förlag, år, upplaga, sidor
2011. Vol. 35, nr 2, s. 969-981
Nyckelord [en]
Soil, Contamination, LCA, Environment, Phytoremediation, Remediation, Vegetation, Excavating, Backfill, Disposal, Sweden, Bibliography, English
Nationell ämneskategori
Geoteknik Geovetenskap och miljövetenskap
Identifikatorer
URN: urn:nbn:se:swedgeo:diva-793DOI: 10.1016/j.biombioe.2010.11.022OAI: oai:DiVA.org:swedgeo-793DiVA, id: diva2:1339629
Tillgänglig från: 2019-07-30 Skapad: 2019-07-30 Senast uppdaterad: 2019-07-30

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