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<p>A novel and sustainable biocomposite, SA-RFsW/PS, was developed by integrating alginate-functionalized rabbit fur waste with peanut shell-derived activated carbon for the efficient removal of crystal violet (CV) dye from contaminated water. The material was thoroughly characterized, and its adsorption performance was optimized using a Box-Behnken design (BBD). Near-complete removal (~ 100%) was achieved under optimal conditions: pH 9.0, an adsorbent dose of 20&#xa0;mg, and a contact time of 90&#xa0;min. Kinetic studies revealed excellent correlation with the pseudo-first-order (PFO) model, while equilibrium data were best described by the Langmuir isotherm, indicating monolayer adsorption on a homogeneous surface with a maximum capacity of 163.03&#xa0;mg/g at 328&#xa0;K. Thermodynamic analysis confirmed the spontaneous and endothermic nature of the adsorption process. The biocomposite demonstrates strong practical potential, with a production cost of 10.98 USD/kg, stable reusability (86.38% efficiency after five cycles), and an estimated treatment cost of just 1.69 USD per cubic meter of 50&#xa0;mg/L CV solution. This work presents a cost-effective and sustainable strategy for the valorization of agricultural and animal waste into a high-performance adsorbent for wastewater remediation.</p>

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Economic Design of an Innovative Biowaste-Based Sodium Alginate/Rabbit Furs Waste-Peanut Shell Composite: Integration of Molecular Modeling and Statistical Physics for Enhanced Crystal Violet Removal

  • 期刊论文

  • 发表日期：

    2026年4月21日

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  • Ahmed A. Bhran,
  • Abdelrahman G. Gadallah,
  • Ahmed S. Elshimy

摘要

A novel and sustainable biocomposite, SA-RFsW/PS, was developed by integrating alginate-functionalized rabbit fur waste with peanut shell-derived activated carbon for the efficient removal of crystal violet (CV) dye from contaminated water. The material was thoroughly characterized, and its adsorption performance was optimized using a Box-Behnken design (BBD). Near-complete removal (~ 100%) was achieved under optimal conditions: pH 9.0, an adsorbent dose of 20 mg, and a contact time of 90 min. Kinetic studies revealed excellent correlation with the pseudo-first-order (PFO) model, while equilibrium data were best described by the Langmuir isotherm, indicating monolayer adsorption on a homogeneous surface with a maximum capacity of 163.03 mg/g at 328 K. Thermodynamic analysis confirmed the spontaneous and endothermic nature of the adsorption process. The biocomposite demonstrates strong practical potential, with a production cost of 10.98 USD/kg, stable reusability (86.38% efficiency after five cycles), and an estimated treatment cost of just 1.69 USD per cubic meter of 50 mg/L CV solution. This work presents a cost-effective and sustainable strategy for the valorization of agricultural and animal waste into a high-performance adsorbent for wastewater remediation.