Resource utilization of tea waste in biochar and other areas: Current status, challenges and future prospects

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 377, P. 124569 - 124569

Published: Feb. 20, 2025

Language: Английский

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Green Synthesis of nZVI-Modified Sludge Biochar for Cr(VI) Removal in Water: Fixed-Bed Experiments and Artificial Neural Network Model Prediction

Water, Journal Year: 2025, Volume and Issue: 17(3), P. 341 - 341

Published: Jan. 25, 2025

The contamination of aquatic environments with hexavalent chromium (Cr(VI)) poses significant environmental and public health risks, necessitating the development high-performance adsorbents for its efficient removal. This study evaluates potential green-synthesized nanoscale zero-valent iron-modified sludge biochar (TP-nZVI/BC) as an effective adsorbent Cr(VI) removal through isothermal adsorption experiments, fixed-bed column studies, artificial neural network (ANN) modeling. Fixed-bed experiments demonstrated that breakthrough time, exhaustion unit capacity increased bed height. Conversely, these parameters decreased higher influent concentrations flow rates. Breakthrough curve analysis revealed Thomas model provided best fit experimental data (R2 = 0.992–0.998). An ANN model, developed using Levenberg–Marquardt algorithm, employed a single hidden layer six neurons exhibited excellent predictive performance 0.996, MSE 0.520). was validated ability to predict behavior under untested conditions, demonstrating applicability process optimization. highlights superior TP-nZVI/BC establishes theoretical basis optimizing scaling up systems findings provide valuable insights into practical application sustainable materials in remediation.

Language: Английский

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Enhanced removal of Cr(VI) from aqueous solutions using a zero-valent nickel/iron-PDA@PVDF membrane prepared via a simple blending method

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157891 - 157891

Published: Nov. 1, 2024

Language: Английский

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Progress on the adsorption characteristics of nZVI and other iron-modified biochar for phosphate adsorption in water bodies

Circular Economy, Journal Year: 2024, Volume and Issue: 3(4), P. 100112 - 100112

Published: Oct. 25, 2024

Language: Английский

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