Assessing the potential of soil carbonation and enhanced weathering through Life Cycle Assessment: A case study for Sao Paulo State, Brazil

Lefebvre, D.; Goglio, P.; Williams, A.; Manning, D. A. C.; de Azevedo, A. C.; Bergmann, M.; Meersmans, Jeroen; Smith, P.

doi:10.1016/j.jclepro.2019.06.099

Article (Scientific journals)

Assessing the potential of soil carbonation and enhanced weathering through Life Cycle Assessment: A case study for Sao Paulo State, Brazil

Lefebvre, D.; Goglio, P.; Williams, A. et al.

2019 • In Journal of Cleaner Production, 233, p. 468-481

Peer Reviewed verified by ORBi

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https://hdl.handle.net/2268/264864

DOI
10.1016/j.jclepro.2019.06.099

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Keywords :

Carbonation; Enhanced weathering; LCA; Life cycle assessment; NET; Sao paulo; Agriculture; Artificial life; Basalt; Carbon dioxide; Global warming; Greenhouse gases; Life cycle; Quarries; Silicate minerals; Carbon dioxide emissions; Carbon dioxide removal; Carbon dioxide sequestration; Field application; Life Cycle Assessment (LCA); Relative contribution; Reliable estimates; Weathering

Abstract :

[en] Enhanced silicate rock weathering for long-term carbon dioxide sequestration has considerable potential, but depends on the availability of suitable rocks coupled with proximity to suitable locations for field application. In this paper, we investigate the established mining industry that extracts basaltic rocks for construction from the Paraná Basin, Sao Paulo State, Brazil. Through a Life Cycle Assessment, we determine the balance of carbon dioxide emissions involved in the use of this material, the relative contribution of soil carbonation and enhanced weathering, and the potential carbon dioxide removal of Sao Paulo agricultural land through enhanced weathering of basalt rock. Our results show that enhanced weathering and carbonation respectively emit around 75 and 135 kg carbon dioxide equivalent per tonne of carbon dioxide equivalent removed (considering a quarry to field distance of 65 km). We underline transportation as the principal process negatively affecting the practice and uncover a limiting road travel distance from the quarry to the field of 540 ± 65 km for carbonation and 990 ± 116 km for enhanced weathering, above which the emissions offset the potential capture. Regarding Sao Paulo State, the application of crushed basalt at 1 t/ha to all of the State's 12 million hectares of agricultural land could capture around 1.3 to 2.4 Mt carbon dioxide equivalent through carbonation and enhanced weathering, respectively. This study suggests a lower sequestration estimate than previous studies and emphasizes the need to consider all process stages through a Life Cycle Assessment methodology, to provide more reliable estimates of the sequestration potential of greenhouse gas removal technologies. © 2019 The Authors

Disciplines :

Biotechnology

Author, co-author :

Lefebvre, D.; School of Water, Energy and Environment, Cranfield University, College Road, Bedford, MK43 0AL, United Kingdom

Goglio, P.; School of Water, Energy and Environment, Cranfield University, College Road, Bedford, MK43 0AL, United Kingdom, Wageningen Economic Research, Wageningen University & Research, Leeuwenborch, Hollandsweg 1, Wageningen, 6706KN, Netherlands

Williams, A.; School of Water, Energy and Environment, Cranfield University, College Road, Bedford, MK43 0AL, United Kingdom

Manning, D. A. C.; School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, United Kingdom

de Azevedo, A. C.; USP/ESALQ/LSO, Av. Padua Dias, 11, Piracicaba, SP 13415900, Brazil

Bergmann, M.; Geological Survey of Brazil (CPRM), Rua Banco da Provincia 105, Porto Alegre, Rio Grande do Sul CEP, 90840-030, Brazil

Meersmans, Jeroen ; Université de Liège - ULiège > Département GxABT > Analyse des risques environnementaux

Smith, P.

Title :

Assessing the potential of soil carbonation and enhanced weathering through Life Cycle Assessment: A case study for Sao Paulo State, Brazil

Publication date :

2019

Journal title :

Journal of Cleaner Production

ISSN :

0959-6526

eISSN :

1879-1786

Publisher :

Elsevier Ltd

Volume :

233

Pages :

468-481

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

National Eye Research Centre, NERCNatural Environment Research Council, NERCEconomic and Social Research Council, ESRCDepartment for Business, Energy and Industrial Strategy, UK Government, BEISEngineering and Physical Sciences Research Council, EPSRCDepartment for Business, Energy and Industrial Strategy, UK Government, BEIS

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