The recycling of oyster shells: an environmental analysis using Life Cycle Assessment

Journal of Environmental Management
Rodrigo Augusto Freitas de AlvarengaSebastião Roberto Soares

Abstract

Oysters represent a substantial fraction of the world's overall intensive aquaculture production. In Brazil, oyster aquaculture is still in the deployment phase but has the potential for growth and, likewise other aquaculture products, generate environmental impacts over their life cycle. Special attention should be devoted to the disposal or processing of the oyster shells, whose high calcium carbonate content (80-95%) gives them the potential for use as raw material for several other products. The objective of this study was to conduct a cradle-to-grave Life Cycle Assessment (LCA) of 1 kg of oysters produced in southern Brazil, incorporating the recycling of the oyster shells on the LCA. Two scenarios were considered. The first scenario (termed scenario A) assumed that the oyster shells were deposited in a landfill, whereas the second scenario (scenario B) assumed that the shells were processed to make them available as raw material as a source of CaCO(3). We used Eco-indicator 99 H/A to perform the impact assessment. Scenario A had an overall impact of 93.71 mPt, whereas scenario B had an overall impact of 58.97 mPt. The latter scenario had lower environmental impacts, however they were depended strongly on the distance betw...Continue Reading

References

Sep 25, 2004·Ambio·Elias PapatryphonHayo M G van der Werf
Sep 1, 2009·Journal of Environmental Management·Göran FinnvedenSangwon Suh
Dec 1, 2009·Environmental Science & Technology·Nathan PelletierHoward Silverman

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Citations

Feb 6, 2014·Journal of Environmental Sciences (China)·Hongbing LuoXiubo Sun
Nov 6, 2012·Waste Management·Sebastião Roberto SoaresRodrigo A F Alvarenga
Jun 20, 2020·Bulletin of Environmental Contamination and Toxicology·Dongxue BiLirong Feng
Feb 12, 2020·Environmental Technology·Kyong-Hwan ChungByung-Geon Park
Apr 26, 2019·Materials·Joon Ho SeoJeong Gook Jang
Nov 12, 2020·Environmental Geochemistry and Health·Gansheng ZhongYuanyuan Tang
Jul 12, 2019·Environmental Science & Technology·Nicholas E RayRobinson W Fulweiler
Oct 29, 2019·Environmental Science & Technology·Michel BonnardIsabelle Parrot
Oct 7, 2021·Environmental Science & Technology·Nicholas E Ray, Robinson W Fulweiler

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