Biochar as green adsorbents for pharmaceutical pollution in aquatic environments: A review

Desalination, Journal Year: 2024, Volume and Issue: 583, P. 117725 - 117725

Published: May 10, 2024

Language: Английский

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Preparation of highly functionalised biochar from hydrochloric acid activated bagasse for the efficient removal of metal ions

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Constructing 3D magnetic MXenes/chitosan composites to reinforce U(VI) and Cr(VI) trapping: Excavating from performance to mechanism

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 352, P. 128094 - 128094

Published: May 24, 2024

Language: Английский

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Innovative iron‑manganese modified microalgae biochar for efficient phosphate iron removal from water: Preparation and adsorption mechanisms

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 106051 - 106051

Published: Aug. 28, 2024

Language: Английский

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A critical review of biochar versus hydrochar and their application for H2S removal from biogas

Reviews in Environmental Science and Bio/Technology, Journal Year: 2024, Volume and Issue: 23(3), P. 699 - 737

Published: Aug. 21, 2024

Abstract Biogas contains significant quantities of undesirable and toxic compounds, such as hydrogen sulfide (H 2 S), posing severe concerns when used in energy production-related applications. Therefore, biogas needs to be upgraded by removing H S increase their bioenergy application attractiveness lower negative environmental impacts. Commercially available upgradation processes can expensive for small medium-scale production plants, wastewater treatment facilities via anaerobic digestion process. In addition, an all-inclusive review detailing a comparison biochar hydrochar removal is currently unavailable. the current study aimed critically systematically biochar/hydrochar from biogas. To achieve this, first part discussed technologies properties vs. hydrochar. exisiting adsorption mechanisms, namely physical adsorption, reactive chemisorption, responsible with char materials were discussed. Also, factors, including feedstock type, activation strategies, reaction temperature, moisture content, other process parameters that could influence behaviour are summarised. Finally, synergy trade-offs between sectors techno-economic feasibility using presented. Biochar’s excellent structural coupled alkaline pH high metal facilitate physisorption chemisorption pathways removal. case hydrochar, occurs mainly which attributed well-preserved surface functional groups. Challenges commercial adsorbents stream highlighted perspectives future research provided. Graphical abstract

Language: Английский

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Efficient removal of tetracycline from wastewater via KHCO3-activated biochar: Characterization, performance, and mechanism

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 68, P. 106450 - 106450

Published: Nov. 11, 2024

Language: Английский

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A novel adsorbent for separation of Cr(VI) derived from abandoned amine-oxime resin by the hydrolysis method combined with extractant

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107377 - 107377

Published: March 1, 2025

Language: Английский

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Adsorption performance of Cr(VI) using Fe-containing sludge biochar co-doped with nitrogen and sulfur

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

Published: March 6, 2025

Language: Английский

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Removal of Cd(II) from Acidic Wastewater on Sludge Biochar with NaHCO3 Activation Preparation

Journal of Water Chemistry and Technology, Journal Year: 2025, Volume and Issue: 47(1), P. 31 - 44

Published: Feb. 1, 2025

Language: Английский

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Efficient adsorptive removal of perfluorooctanoic acid by large surface area biochar modified with KHCO₃

Water Emerging Contaminants & Nanoplastics, Journal Year: 2025, Volume and Issue: 4(1)

Published: March 24, 2025

Biochar is a promising adsorbent for remediating perfluorooctanoic acid (PFOA) in contaminated water. However, the performance of pristine biochar limited. Considering pore filling crucial mechanism PFOA adsorption on biochar, this study investigated impact KHCO3 modification structure and its capacity PFOA. The characterization experiment results revealed that both specific surface area (SSA) biochars were positively correlated with pyrolysis temperature, modified corn stalks prepared at 800 °C (CBC-800) exhibited noticeable SSA (1,471.6 m2/g) (514.8 mg/g), which 3.6 37.1 times higher, respectively, compared to stalk (404.1 m2/g 13.9 mg/g). kinetics isotherm data followed pseudo-second-order Freundlich model, indicating chemisorption was main factor limiting rate. Thermodynamics demonstrated process physical, spontaneous, exothermic. porous performed superior capacities under various environmental conditions (pH, inorganic salts, etc. ). removal rate CBC-800 low concentrations (10-1,000 μg/g) ranged from 87.4% 99.6%, initial concentrations. Additionally, effectively removed (40 μg/L) through six consecutive cycles (93.4%-94.5%). Mechanism analysis indicated dominant greatly enhanced, while hydrogen bonding, electrostatic, hydrophobic interactions also involved. Our derived low-cost agricultural forestry residues combining has great potential adsorptive emerging PFAS

Language: Английский

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