Irfan Muhammad Faisal, Siddique Tariq, Ullah Aman
Department of Renewable Resources, University of Alberta Edmonton AB T6G 2E3 Canada
Department of Agriculture Food and Nutritional Science, University of Alberta Edmonton AB T6G 2P5 Canada
RSC Adv. 2025 Jul 17;15(31):25450-25472. doi: 10.1039/d5ra02131f. eCollection 2025 Jul 15.
This study optimized poultry feathers (PFs) in two steps to remove six trace metals (Cr, As, V, Co, Ni, Cd) from contaminated water and evaluated the spent biosorbent's thermal and energy potential. PFs were surface-modified with tetrahydrofuran (THF) and optimized response surface methodology. Optimal pre-treatment (30 °C, 47 min, 0.015 g ml) and biosorption (0.17 g, 0.5 h) conditions improved removal of Co (+31.5%), Ni (+19.5%), Cd (+0.6%), and V (+6.1%), but reduced Cr (-24.1%) and As (-1.8%). Thermogravimetric analysis showed higher activation energies for spent biosorbent, with diffusion-controlled degradation confirmed by Coats-Redfern analysis. This dual optimization enhances metal removal and supports scalable bioenergy recovery.
本研究分两步对家禽羽毛（PFs）进行优化，以去除污染水中的六种痕量金属（铬、砷、钒、钴、镍、镉），并评估用过的生物吸附剂的热潜力和能源潜力。采用四氢呋喃（THF）对PFs进行表面改性，并运用响应面法进行优化。最佳预处理条件（30°C、47分钟、0.015 g/ml）和生物吸附条件（0.17 g、0.5小时）提高了钴（+31.5%）、镍（+19.5%）、镉（+0.6%）和钒（+6.1%）的去除率，但降低了铬（-24.1%）和砷（-1.8%）的去除率。热重分析表明，用过的生物吸附剂具有更高的活化能，通过Coats-Redfern分析证实其降解受扩散控制。这种双重优化提高了金属去除率，并支持可扩展的生物能源回收。
