Synergistic Removal of Hazardous Dyes Using a Clay/Carbon Composite Derived from Spent Bleaching Earth: Optimization Using Response Surface Methodology DOI Open Access
Freeman Madhau, Zhenjun Wu, Yahui Shi

и другие.

Processes, Год журнала: 2025, Номер 13(4), С. 1217 - 1217

Опубликована: Апрель 17, 2025

Industrial wastewater contains complex pollutants, including toxic dyes, necessitating effective and sustainable remediation strategies. Conventional treatment methods often struggle to remove multiple dyes simultaneously, underscoring the need for innovative adsorbents. This study investigated a clay/carbon composite (SBE/C (500 °C)) derived from spent bleaching earth (SBE) via pyrolysis simultaneous removal of methylene blue (MB) malachite green (MG) dyes. The process significantly enhanced specific surface area SBE, improving its adsorption capacity. Using Box–Behnken design (BBD) response methodology (RSM), we optimized key parameters (pH, contact time, dosage) at 45 °C an initial dye concentration 20 mg/L. developed quadratic model demonstrated high predictive accuracy, with experimental results closely aligning predictions (R2 = 0.9983 MB, 0.9955 MG), along strong adjusted 0.9962 0.9896 MG) predicted 0.9811 0.9275 values. Under optimal conditions, maximum capacities reached 27.77 mg/g MB 27.38 MG. These findings highlight potential SBE/C °C) as cost-effective adsorbent MG wastewater, offering promising solution environmental remediation.

Язык: Английский

Synergistic Removal of Hazardous Dyes Using a Clay/Carbon Composite Derived from Spent Bleaching Earth: Optimization Using Response Surface Methodology DOI Open Access
Freeman Madhau, Zhenjun Wu, Yahui Shi

и другие.

Processes, Год журнала: 2025, Номер 13(4), С. 1217 - 1217

Опубликована: Апрель 17, 2025

Industrial wastewater contains complex pollutants, including toxic dyes, necessitating effective and sustainable remediation strategies. Conventional treatment methods often struggle to remove multiple dyes simultaneously, underscoring the need for innovative adsorbents. This study investigated a clay/carbon composite (SBE/C (500 °C)) derived from spent bleaching earth (SBE) via pyrolysis simultaneous removal of methylene blue (MB) malachite green (MG) dyes. The process significantly enhanced specific surface area SBE, improving its adsorption capacity. Using Box–Behnken design (BBD) response methodology (RSM), we optimized key parameters (pH, contact time, dosage) at 45 °C an initial dye concentration 20 mg/L. developed quadratic model demonstrated high predictive accuracy, with experimental results closely aligning predictions (R2 = 0.9983 MB, 0.9955 MG), along strong adjusted 0.9962 0.9896 MG) predicted 0.9811 0.9275 values. Under optimal conditions, maximum capacities reached 27.77 mg/g MB 27.38 MG. These findings highlight potential SBE/C °C) as cost-effective adsorbent MG wastewater, offering promising solution environmental remediation.

Язык: Английский

Процитировано

0