Unveiling the distinctive characterization and adsorption behaviors of MnFe2O4 hydrochar/pyrochar composites for Cr(VI) removal

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116052 - 116052

Опубликована: Март 1, 2025

Язык: Английский

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Preparation of Amino/Hydroxy Dual-Functionalized Hypercrosslinked Polymers for Effective Removal of Organic Dyes from Water

Journal of Hazardous Materials, Год журнала: 2025, Номер 488, С. 137405 - 137405

Опубликована: Янв. 31, 2025

Язык: Английский

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Adsorption performance of MIL-121/CA on lead and cadmium in acid mine drainage

Water Science & Technology, Год журнала: 2024, Номер 90(6), С. 1866 - 1885

Опубликована: Сен. 4, 2024

ABSTRACT For the remediation of acid mine drainage (AMD) contaminated with Pb2+ and Cd2+, an aluminum-based MOF material, MIL-121, was synthesized via a solvothermal method, cross-linked sodium alginate (SA) to make composite bead, MIL-121/CA. The effects pH coexisting ions on adsorption effect were investigated by batch experiments. pseudo-second-order kinetic model Langmuir isotherm well described process, maximum capacity 161.812 95.785 mg/g, respectively. Dynamic experiments showed that breakthrough curves both Cd2+ shifted right as filling height increased, influent water flow rate initial concentration decreased, Thomas could describe dynamic process. mechanism MIL-121/CA analyzed microcharacterization such SEM, FTIR, XPS. It found surface rich in pores had large number carboxyl hydroxyl groups Ca2+, which good removal Cd2+. beads can serve excellent adsorbent for treating AMD

Язык: Английский

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Preparation of diatomite-based porous ceramics and their adsorption properties for Cu2+

Ceramics International, Год журнала: 2024, Номер 50(23), С. 50153 - 50162

Опубликована: Сен. 27, 2024

Язык: Английский

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Effective phosphorus removal using transformed water hyacinth: Performance evaluation in fixed-bed columns and practical applications

PLoS ONE, Год журнала: 2024, Номер 19(11), С. e0312432 - e0312432

Опубликована: Ноя. 21, 2024

This study introduces calcined water hyacinth (CWH), processed at 650°C, as a novel and environmentally friendly adsorbent for phosphorus (P) removal from wastewater. Building on previous findings that identified CWH rich source of metal oxides hydroxides (e.g., Ca(OH)₂, Al₂O₃, MgO, Fe₃O₄), this research explores its application in fixed-bed column systems continuous adsorption processes. The demonstrates effectively removes through apatite formation, showcasing potential real-world treatment. capacity increased 23.64 to 26.55 mg/g when the flow rate was reduced 1.5 0.5 mL/min. Breakthrough curves fitted Thomas, Adams-Bohart, Yoon-Nelson models provided critical insights into performance, while Bed Depth Service Time (BDST) model confirmed feasibility employing continuous-flow systems. practical tests synthetic municipal wastewater, which revealed maximum 5.20 mg/g, further demonstrated CWH’s effectiveness treating wastewater with low concentrations, providing reassurance about applicability. Furthermore, found increasing height improved performance by extending breakthrough exhaustion times, whereas higher rates led faster saturation capacity. exhausted material can be repurposed soil amendment or fertilizer feedstock, supporting nutrient recycling.

Язык: Английский

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Phosphorus recovery from aqueous solutions by a Mg/Al-modified biochar from date palm wastes in column mode: adsorption characteristics and scale-up design parameters assessment

Biomass Conversion and Biorefinery, Год журнала: 2024, Номер unknown

Опубликована: Дек. 17, 2024

Язык: Английский

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Highly efficient and selective adsorption of phosphorus and mechanism study by La-Zr co-modified hydrogel beads with 3D network structure

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер unknown, С. 136010 - 136010

Опубликована: Дек. 1, 2024

Язык: Английский

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