Batch study demonstrates efficient methyl red adsorption in aqueous systems using chicken bone waste biochar, suggesting a sustainable wastewater treatment solution.
/g for CBWB. Batch sorption studies examined the impacts of solution pH, initial dye concentration, adsorbent dosage, contact time, and temperature on MR elimination. Adsorption kinetics followed the pseudo-first-order model for CBW and the pseudo-second-order model for CBWB, signifying stronger surface interactions after pyrolysis. Equilibrium data were best explained by the Langmuir isotherm for CBW and the Freundlich isotherm for CBWB, with maximum adsorption capacities of 84.84 and 138.58 mg/g, respectively. Thermodynamic assessment confirmed that the adsorption process was spontaneous and endothermic. Regeneration studies showed that CBWB reserved approximately 69% of its initial adsorption efficiency after five cycles of operation. These findings revealed that chicken bone waste-derived biochar is reusable, efficient, and sustainable adsorbent for dye-contaminated wastewater treatment.
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Alshdoukhi et al. (2026) studied this question.
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