Biochar as a negative emission technology: A synthesis of field research on greenhouse gas emissions

Journal of Environmental Quality, Journal Year: 2023, Volume and Issue: 52(4), P. 769 - 798

Published: March 11, 2023

Biochar is one of the few nature-based technologies with potential to help achieve net-zero emissions agriculture. Such an outcome would involve mitigation greenhouse gas (GHG) emission from agroecosystems and optimization soil organic carbon sequestration. Interest in biochar application heightened by its several co-benefits. Several reviews summarized past investigations on biochar, but these mostly included laboratory, greenhouse, mesocosm experiments. A synthesis field studies lacking, especially a climate change standpoint. Our objectives are (1) synthesize advances field-based that have examined GHG capacity (2) identify limitations technology research priorities. Field studies, published before 2022, were reviewed. has variable effects emissions, ranging decrease, increase, no change. Across reduced nitrous oxide (N2 O) 18% methane (CH4 ) 3% increased dioxide (CO2 1.9%. When was combined N-fertilizer, it CO2 , CH4 N2 O 61%, 64%, 84% observations, plus other amendments 78%, 92%, 85% respectively. shown reduce soils, long-term needed address discrepancies best practices (rate, depth, frequency) agricultural soils.

Language: Английский

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Recent progress in the production and application of biochar and its composite in environmental biodegradation

Bioresource Technology, Journal Year: 2023, Volume and Issue: 387, P. 129592 - 129592

Published: Aug. 6, 2023

Language: Английский

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An overview of biochar production techniques and application in iron and steel industries

Bioresources and Bioprocessing, Journal Year: 2024, Volume and Issue: 11(1)

Published: July 3, 2024

Abstract Integrating innovation and environmental responsibility has become important in pursuing sustainable industrial practices the contemporary world. These twin imperatives have stimulated research into developing methods that optimize processes, enhancing efficiency effectiveness while mitigating undesirable ecological impacts. This objective is exemplified by emergence of biochar derived from thermo-chemical transformation biomass. review examines production their potential applications across various aspects iron steel industries (ISI). The technical, economic, implications integrating ISI were explored. Slow pyrolysis hydrothermal carbonization are most efficient for higher yield (25–90%). Biochar several advantages- heating value (30–32 MJ/kg), more porosity (58.22%), significantly larger surface area (113 m 2 /g) compared to coal coke. However, presence often reduces fluidity a coal-biochar mixture. findings highlighted implementation come with costs, primarily due expense substitute fuels traditional fossil fuels. economic viability societal desirability highly uncertain vary based on factors such as location, feedstock type, scale, pricing, among others. Furthermore, biomass supply chain another factor which determines its large scale implementation. Despite these challenges, there opportunities reduce emissions BF-BOF operations utilizing technologies. Overall, present study explored diverse aiming contribute ongoing manufacturing practices, underscoring significance shaping environmentally conscious future.

Language: Английский

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Insights into remediation of cadmium and lead contaminated-soil by Fe-Mn modified biochar

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112771 - 112771

Published: April 13, 2024

Language: Английский

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Fabrication of engineered biochar for remediation of toxic contaminants in soil matrices and soil valorization

Chemosphere, Journal Year: 2024, Volume and Issue: 358, P. 142101 - 142101

Published: April 21, 2024

Language: Английский

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