doi: 10.18178/ijesd.2026.17.4.1595
Investigating the Impact of Amines on Freshwater Microalgae Relevant for Sustainable Carbon Capture Systems
Dipesh1
,
N. C. Gupta1,* ,
Ruchika Tanwar1 ,
Anubha Kaushik1 ,
Ekansh Saigal2
- 1University School of Environment Management, GGS Indraprastha University, Dwarka, New Delhi-110078, India
- 2University School of Biotechnology, GGS Indraprastha University, Dwarka, New Delhi-110078, India
- Manuscript receivedSeptember 19, 2025
- revisedNovember 9, 2025
- acceptedDecember 22, 2025
- publishedAugust 17, 2026
Abstract
The Post-Combustion Carbon Capture (PCCC) process relies on aqueous amine solutions to chemically absorb CO2 from flue gas, and it has gained rapid acceptance as an effective method for mitigating carbon emissions. However, during this process, the amines and their derivatives escape into the environment. Since the degraded solvents are considered ecotoxic and carcinogenic, they may potentially harm aquatic systems and have broader ecological and health repercussions for humans. To assess the toxicity of various amines and their derivatives, including formamide, acetamide, and Monoethanolamine (MEA), we have conducted ecotoxicity tests on the freshwater unicellular algae Chlorella pyrenoidosa under controlled conditions. The research highlights the significance of both acute and chronic exposure to key biomarkers, revealing essential insights into potential sublethal effects and tolerance levels of each amine solvent. These factors are crucial to algal efficiency and growth, underscoring the importance of sustainable solvent use in carbon capture, utilisation, and storage technologies.
Keywords
- amine-based solvents
- toxicity
- CCUS
- Chlorella pyrenoidosa
- total chlorophyll
- algal growth
How to Cite
Dipesh, N. C. Gupta, Ruchika Tanwar, Anubha Kaushik, and Ekansh Saigal, "Investigating the Impact of Amines on Freshwater Microalgae Relevant for Sustainable Carbon Capture Systems," International Journal of Environmental Science and Development, vol. 17, no. 4, pp. 339-347, 2026. https://doi.org/10.18178/ijesd.2026.17.4.1595
Copyright & License
Copyright © 2026 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).