Sustainability assessment of biochar applications

Publisher:
Elsevier
Publication Type:
Chapter
Citation:
Current Developments in Biotechnology and Bioengineering: Biochar Towards Sustainable Environment, 2023, pp. 415-441
Issue Date:
2023-01-01
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Due to characteristics of easy access, stability, high organic carbon content, high specific surface area, high porosity, etc., biochar has been increasingly prepared and used for multiple applications in the environmental field over the world. Although the number of biochar-related studies is booming, the long-term sustainability behaviors of biochar were much less explored. The sustainability of the biochar could affect its practical applications and further development and improvement of technologies and management strategies. This study investigates the biochar applications in different environmental fields and gives notable illustrations for environmental pollution control and emission reduction. Afterward, a comprehensive framework for sustainability assessment of biochar was proposed, which addresses the concerns from technical, environmental, economic, and social aspects. The associated indices for different parts were further demonstrated, and the use of possible evaluation tools such as life cycle analysis, net present value, and multiple attribute decision making for quantification and comparison was highlighted. Finally, more field investigations on the applicability and effectiveness of biochar in different environmental conditions are further needed. The results from the study can provide theoretical and applicable information for the comprehensive evaluation and management of biochar toward sustainability.
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