Carbon Sequestration Strategies in Soil Using Biochar: Advances, Challenges, and Opportunities

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(31), P. 11357 - 11372

Published: July 26, 2023

Biochar, a carbon (C)-rich material obtained from the thermochemical conversion of biomass under oxygen-limited environments, has been proposed as one most promising materials for C sequestration and climate mitigation in soil. The contribution biochar hinges not only on its fused aromatic structure but also abiotic biotic reactions with soil components across entire life cycle environment. For instance, minerals microorganisms can deeply participate mineralization or complexation labile (soluble easily decomposable) even recalcitrant fractions biochar, thereby profoundly affecting cycling Here we identify five key issues closely related to application review outstanding advances. Specifically, terms use pyrochar, hydrochar, stability soil, effect flux speciation changes emission nitrogen-containing greenhouse gases induced by production application, barriers are expounded. By elaborating these critical issues, discuss challenges knowledge gaps that hinder our understanding provide outlooks future research directions. We suggest combining mechanistic biochar-to-soil interactions long-term field studies, while considering influence multiple factors processes, is essential bridge gaps. Further, standards should be widely implemented, threshold values urgently developed. Also needed comprehensive prospective assessments restricted account contributions contamination remediation, quality improvement, vegetation accurately reflect total benefits

Language: Английский

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An Overview of Climate Change Impacts on Agriculture and Their Mitigation Strategies

Agriculture, Journal Year: 2023, Volume and Issue: 13(8), P. 1508 - 1508

Published: July 27, 2023

In recent years, the adverse effect of climate change on soil properties in agricultural sector has become a dreadful reality worldwide. Climate change-induced abiotic stresses such as salinity, drought and temperature fluctuations are devastating crops’ physiological responses, productivity overall yield, which is ultimately posing serious threat to global food security agroecosystems. The applications chemical fertilizers pesticides contribute towards further deterioration rapid changes climate. Therefore, more careful, eco-friendly sustainable strategies required mitigate impact climate-induced damage sector. This paper reviews recently reported damaging impacts various crops, along with two emerging mitigation strategies, biochar biostimulants, light studies focusing combating worsening deteriorated environment yields, environment. Here, we highlighted agriculture applying an aim protecting soil,

Language: Английский

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Biomass residue to carbon dioxide removal: quantifying the global impact of biochar

Biochar, Journal Year: 2023, Volume and Issue: 5(1)

Published: Oct. 11, 2023

Abstract The Climate Change Conference of Parties (COP) 21 in December 2015 established Nationally Determined Contributions toward reduction greenhouse gas emissions. In the years since COP21, it has become increasingly evident that carbon dioxide removal (CDR) technologies must be deployed immediately to stabilize concentration atmospheric gases and avoid major climate change impacts. Biochar is a carbon-rich material formed by high-temperature conversion biomass under reduced oxygen conditions, its production one few CDR methods can at scale large enough counteract effects within next decade. Here we provide generalized framework for quantifying potential contribution biochar make achieving national emissions goals, assuming use only sustainably supplied biomass, i.e., residues from existing agricultural, livestock, forestry wastewater treatment operations. Our results illustrate significant role play world-wide strategies, with 6.23 ± 0.24% total GHG 155 countries covered based on 2020 data over 100-year timeframe, more than 10% 28 countries. Concentrated regions high relative were identified South America, northwestern Africa eastern Europe. Graphical abstract

Language: Английский

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Biocarbon materials

Nature Reviews Methods Primers, Journal Year: 2024, Volume and Issue: 4(1)

Published: March 14, 2024

Language: Английский

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Renewable Energies and Biochar: A Green Alternative for Reducing Carbon Footprints Using Tree Species from the Southern Andean Region of Ecuador

Energies, Journal Year: 2025, Volume and Issue: 18(5), P. 1027 - 1027

Published: Feb. 20, 2025

The urgent need for sustainable strategies to mitigate climate change has spurred the development of efficient carbon sequestration methods with minimal greenhouse gas emissions, presenting promising opportunities produce biochar and, this bioproduct, enhance crop productivity. Therefore, research aimed evaluate footprint produced by low-temperature slow pyrolysis biomass obtained from pruning residues four tree species present in parks and gardens southern Andean region Ecuador. An electric reactor (ER), powered 44 solar panels 535 W each, was used perform process at 350 °C over hours. For each species—Persea americana, Polylepis spp., Acacia Prunus salicifolia—three replicates were conducted using 1.5 kg per trial. results showed that spp. higher bulk density (0.303 g/cm3), organic matter (82.85%), total (71.21%), oxygen (27.84%), C/N ratio (120.69), potassium (459.12 ppm). salicifolia exhibited highest levels pollutant emissions (5.93 × 10−6 ton∙m−3 CO2 eq 0.001067 eq, respectively). In contrast, least polluting (0.001018 eq), highlighting its potential as a source production found Meanwhile, Persea americana (avocado) resulted very low although it second-highest due high energy consumption associated process. conclusion, study identified best options through pyrolysis, positioning them viable alternatives developing change.

Language: Английский

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Biochar from agricultural waste as a strategic resource for promotion of crop growth and nutrient cycling of soil under drought and salinity stress conditions: a comprehensive review with context of climate change

Journal of Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 52

Published: Feb. 6, 2025

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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Biochar-assisted remediation of contaminated soils under changing climate

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 377 - 420

Published: Jan. 1, 2024

Language: Английский

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Critical review of biochar for the removal of emerging inorganic pollutants from wastewater

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: 36(2), P. 109960 - 109960

Published: May 1, 2024

Language: Английский

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Agricultural Lignocellulose Biochar Material in Wastewater Treatment: A Critical Review and Sustainability Assessment

Environmental Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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