Life Cycle Assessment of Microalgae Production in a Sanitary Effluent Medium Supplemented with Glycerol

Eduarda Torres Amaral, Tiele Rizzetti, Michele Hoeltz, Gleison Celente, Lisianne Benitez, Rosana Schneider

2022

Abstract

Microalgae are considered renewable and sustainable raw materials. They can be cultivated in wastewater, enabling its treatment for disposal into water bodies due to the sequestration of residual nutrients such as nitrogen and phosphorus. The biomass obtained can be used to develop biofuels and biosupplies. Recognizing the production potential of Chlorella sp. in an alternative culture media, this work aimed to evaluate the major environmental impacts on biomass production cultivated in three scenarios with NPK solution, effluent, and effluent with glycerol supplementation. Life Cycle Analysis was performed using data from a 20 L production scale. The most impacted categories in the process were the production of carcinogenic and non-carcinogenic pollutants, inorganic respiratory pollutants, ecotoxicity, land acidification, land occupation, global warming, and non-renewable energy use. Given the best environmental results, cultivation in effluent with glycerol supplementation led to fewer environmental impacts on Chlorella sp. cultivation since it showed higher biomass yield than the other two scenarios.

Paper Citation

in Harvard Style

Torres Amaral E., Rizzetti T., Hoeltz M., Celente G., Benitez L. and Schneider R. (2022). Life Cycle Assessment of Microalgae Production in a Sanitary Effluent Medium Supplemented with Glycerol. In Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE; ISBN 978-989-758-639-2, SciTePress, pages 77-82. DOI: 10.5220/0011905800003536

in Bibtex Style

@conference{iswee22,
author={Eduarda Torres Amaral and Tiele Rizzetti and Michele Hoeltz and Gleison Celente and Lisianne Benitez and Rosana Schneider},
title={Life Cycle Assessment of Microalgae Production in a Sanitary Effluent Medium Supplemented with Glycerol},
booktitle={Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE},
year={2022},
pages={77-82},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011905800003536},
isbn={978-989-758-639-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Symposium on Water, Ecology and Environment - Volume 1: ISWEE
TI - Life Cycle Assessment of Microalgae Production in a Sanitary Effluent Medium Supplemented with Glycerol
SN - 978-989-758-639-2
AU - Torres Amaral E.
AU - Rizzetti T.
AU - Hoeltz M.
AU - Celente G.
AU - Benitez L.
AU - Schneider R.
PY - 2022
SP - 77
EP - 82
DO - 10.5220/0011905800003536
PB - SciTePress