ZVI and ball milling co-modified biochar for chromium (Cr(Ⅵ)) removal from groundwater: Performance optimization and mechanisms

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136574 - 136574

Published: March 1, 2025

Language: Английский

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Stability and carbon sequestration potential of bamboo biochar

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Language: Английский

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Theoretical and sensitivity analysis of temperature and pressure parameters effects on algae and waste tire co-pyrolysis using Aspen Plus

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 111, P. 488 - 499

Published: Feb. 26, 2025

Language: Английский

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Sustainable valorization of textile industry cotton waste through pyrolysis for biochar production

Cleaner Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 100161 - 100161

Published: March 1, 2025

Language: Английский

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Non-wood-based biochars as promising and eco-friendly adsorbents for chromium hexavalent Cr (VI) removal from aquatic systems: state-of-the-art, limitations, and potential future directions

Environmental Pollutants and Bioavailability, Journal Year: 2024, Volume and Issue: 36(1)

Published: Aug. 14, 2024

Chromium exists from both natural geological processes and human actions, it has a substantial impact on health ecosystems. This study addresses the major challenges in using biochar as an environmentally friendly, sustainable, economical sorbent for removing chromium hexavalent throughout remediation process. The results exhibited that produced non-woody feedstocks pyrolyzed at (300°C −700°C) significantly large amount of various functional groups, higher pH (7 to 11.10) CEC (27 21.70 cmol kg−1), greater surface area (2–300 m2g−1), O/C H/C ratios with increasing carbonization temperature, adsorption capacities (1.63 435 mg g) superior performance removal compared biochars woody-biomass. use equilibrium isotherm, thermodynamic, kinetic models aids comprehending interactions between biochar, well their processes.

Language: Английский

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Effects of Pyrolysis Temperature and Acid-Base Pre-Treatment on the Synthesis of Biochar-Based Slow-Release Selenium Fertilizer and Its Release in Soil

Materials, Journal Year: 2024, Volume and Issue: 17(4), P. 879 - 879

Published: Feb. 14, 2024

Plant-derived selenium is an important source of (Se) for humans, which, however, has been restricted by a low content Se in soil. Traditional fertilizers have tended to result utilization. Thus, it was necessary develop new slow-release material control fertilizer release. In this study, biochar pyrolyzed at 300 °C and 800 cross-linked with polyethyleneimine (PEI) after being treated HNO3 or NaOH (which were labeled Acid-W300, Acid-W800, Alkali-W300, Alkali-W800). The results showed that the maximum adsorption capacities Alkali-W800 329.16 mg/g, 321.93 315.04 344.33 respectively. Among them, Acid-W800 mainly imine- amide-bonded SO32−, while Acid-W300 Alkali-W300 loaded SO32− forming C–Se bonding as well through amide-bonding. release four biochar-based red soil brown extracts conformed pseudo-second-order kinetic model. rate amount extract higher than those extract. Alkali-W800-Se had proportion Se-exchangeable release, accounting 87.5% total selenium, Acid-W300-Se lowest 62.2%. However, releases more 42.49% 37.67% Se-loading capacity during 5 days continuous extraction extraction, released less 20% capacity. recommended

Language: Английский

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Oxalic Acid Boosts Phosphorus Release from Sewage Sludge Biochar: A Key Mechanism for Biochar-Based Fertilizers

Agriculture, Journal Year: 2024, Volume and Issue: 14(9), P. 1607 - 1607

Published: Sept. 14, 2024

Sewage sludge biochar (SSB) exhibits higher phosphorus (P) concentrations than the original sewage (SS) and can be used as a P fertilizer. However, SSB-associated is strongly retained in chemical compounds, which hinders its release subsequent plant uptake. The use of organic acids facilitates solubilization from SSB. Herein, we evaluated effect oxalic acid on SSB applied to soil over time. Biochar was produced at 300 °C (SSB300) 500 (SSB500). increased with an increasing concentration incubation solution SSB-treated soil. speciation showed that predominantly inorganic (Pi), represented 81% 92% total SSB300 SSB500, respectively. Pi consisted mainly non-apatite P, accounting for 91% 96% all Because insoluble water, crucial Oxalic SSB500 by 103- 600-fold, respectively, compared control, extracted water. enhancement increases possibility using sustainable source agriculture.

Language: Английский

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Cotton Stalk-Based Biomass

ACS symposium series, Journal Year: 2024, Volume and Issue: unknown, P. 43 - 62

Published: Nov. 1, 2024

Cotton stalks, remnants of branches, leaves, and pods after the cotton harvest, are a significant bioresource in agroforestry waste. They have complex composition that includes various macromolecules elemental constituents. The primary components stalks cellulose, hemicellulose, lignin. also contain trace amounts crude protein pectin. There has been extensive research focused on transforming this type agricultural waste into valuable products. This chapter offers insights polymeric composition, chemical structure, pretreatment methods, current applications stalks.

Language: Английский

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Characterization of Pyrolysis-Mediated Biochar from the Petiole of Cocos nucifera (L.) and its Effect on Soils from Diverse Agroecosystems of Kerala, South India

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Language: Английский

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