Anaerobic pyrolysis of textile garment waste for the production of multifunctional biochar: fuel performance and Pb( <scp>ii</scp> ) and Cr( <scp>vi</scp> ) adsorption with machine learning prediction

= 0.99 for Pb; 0.987 for Cr) identified pH, adsorbent dosage and initial concentration as key controlling factors. The present results outline a temperature-dependent methodology for upcycling textile waste into advanced carbon materials with dual applicability in energy generation and aqueous pollutant removal. Such an integrated framework advances sustainable material development and contributes to effective strategies for environmental cleanup and reduced waste burden.