Abstract
The study explores the essential role of Life Cycle Assessment (LCA) in assessing the environmental sustainability impacts of biochar as a green sorbent in soil remediation. Recent studies from 2021 to 2023 underscore biochar's potential for global warming mitigation and carbon sequestration. The review discusses various concerns related to biochar-to-soil LCA, including its effects on heavy metals and pesticides in soils, the necessity for additional research on application frequency for pollutant sorption, impacts on real/different soil carbon stocks, variability in biochar properties, limited long-term studies, potential health implications, and incomplete assessment of pollutant dynamics, considering different biochar production methods and soil surface albedo. Advocating for LCAs for other green sorbents, such as low-cost clay, chitosan, and green nano-sorbents, is essential. Additionally, the integration of multiple green remediation techniques is proposed to enhance overall efficiency in soil and environmental remediation practices.
Original language | English |
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Article number | 100882 |
Number of pages | 14 |
Journal | Current Opinion in Green and Sustainable Chemistry |
Volume | 46 |
Early online date | 07 Feb 2024 |
DOIs | |
Publication status | Published - Apr 2024 |