The treatment of phosphogypsum leachate is more urgent than phosphogypsum

Environmental Research, Journal Year: 2024, Volume and Issue: 262, P. 119849 - 119849

Published: Aug. 27, 2024

Language: Английский

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Retardation mechanism of phosphogypsum in phosphogypsum-based excess-sulfate cement

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 428, P. 136293 - 136293

Published: April 21, 2024

Language: Английский

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From Grave to Cradle: Treatment, Resource Recycling, and Valorization of Phosphogypsum Wastes

Environmental Science & Technology Letters, Journal Year: 2024, Volume and Issue: 11(9), P. 908 - 919

Published: Aug. 12, 2024

Phosphogypsum (PG) wastes, including solid-state PG and liquid-state leachate, are industrial byproducts generated during the production of phosphoric acid. It is great concern due to large-scale product accumulation environmental geological hazards. Harmless treatment green chemical resource utilization techniques emerge be critical solutions for solving waste problem. This review aims comprehensively summarize recent advances in harmless treatment, recovery, valorization wastes. The technique advancements regarding decontamination, with different physical, chemical, thermal, biological approaches summarized. Additionally, comprehensive physical chemistry mechanisms underneath strategies leachate have also been discussed. For future work, challenges perspectives highlighted. With systematic information on these aspects, we expect this will serve as a guideline young generations working recovery.

Language: Английский

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Optimization of granular coating struvite recovered from phosphogypsum leachates and its prolonged nutrients-release characteristic

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159883 - 159883

Published: Jan. 1, 2025

Language: Английский

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Efficient Electrochemical Recovery of Phosphate from Phosphogypsum Leachate for Lithium-Ion Battery Cathode Application

ACS ES&T Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Language: Английский

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A deep treatment process for chemical polishing wastewater towards resource recovery: Optimization and performance

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 358, P. 130285 - 130285

Published: Oct. 28, 2024

Language: Английский

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Fluoride Removal from Aqueous Solutions by Using Super-Adsorbents of Chitosan/Orange Peels/Activated Carbon@MgO: Synthesis, Characterization, and Adsorption Evaluation

Processes, Journal Year: 2024, Volume and Issue: 12(9), P. 2043 - 2043

Published: Sept. 22, 2024

Exposure to excessive concentrations of fluoride in potable water is harmful human health; therefore, its limitation deemed necessary. Among the commonly applied technologies, adsorption selected, as it a highly effective, simple, and economically efficient treatment. In present study, several combinations chitosan (CS), orange peels (OP), activated carbon (AC), MgO were synthesized tested adsorbents order find most effective derivative for extraction. The impact adsorbent dosage, pH level, contact time, initial concentration was investigated assess feasibility chitosan/orange peels/activated carbon@MgO composite. According results, modification with AC, OP, unique (CS/OP/AC@MgO), especially acidic conditions (pH 3.0 ± 0.1) by using 1.0 g/L adsorbent, demonstrated highest efficiency F removal, up 97%. pseudo-second (PSO) model Langmuir isotherm fit better experimental CS/OP/AC@MgO, providing Qm = 26.92 mg/g. Thermodynamic analysis confirmed spontaneous nature process. structure morphology modified OP/CS@AC-Mg extensively characterized BET, XRD, FTIR, SEM techniques.

Language: Английский

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On the benefits of the presence of ammonium cations in phosphate-containing solutions processed by electrodialysis

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 362, P. 131897 - 131897

Published: Feb. 1, 2025

Language: Английский

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Improving the performance of phosphogypsum-based cementitious materials by controlling water consumption and introducing CaCl2

Sustainable Chemistry and Pharmacy, Journal Year: 2025, Volume and Issue: 44, P. 101971 - 101971

Published: March 7, 2025

Language: Английский

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Study on the Adsorption Mechanism and Response Surface Optimization of Fluorine and Phosphorus by the Red Clay in Guizhou

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

The presence of fluorine and phosphorus in phosphogypsum leachate directly affects the local ecological environment groundwater quality. This paper examined adsorption characteristics by red clay near a landfill Guizhou Province, China, under different pH values, initial concentrations, soil dosages, particle sizes soil. Response surface methodology (RSM) was employed to optimize three factors (pH, concentration, dosage) selected Box-Behnken design that have great influence on single-factor adsorption. optimum condition for identified as = 3, concentration 91.08 mg/L, dosage 5.31 g, while 4.17, 99.49 5.82 g. Langmuir equation, quasi-secondary kinetic model, Elovich model were used fitting, which demonstrated good fitting. Finally, comparing characterization results scanning electron microscopy (SEM-EDX), X-ray diffraction (XRD), infrared spectroscopy (FTIR), process accompanied electrostatic addition chemical ligand exchange, result multiple effects. findings this study will provide reference prevention, control, management fluoro-phosphorus pollution dumps.

Language: Английский

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