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Screening of Tropical Wood-Rotting Mushrooms for Copper Biosorption

By T. R. Muraleedharan, L. Iyengar and C. Venkobachar


Fruiting bodies (mushrooms) of nine nonedible macrofungi were screened for copper(II) uptake potential. The maximum uptake potentials (Q(infmax)s) derived from equilibrium studies indicated that all nine species exhibited higher Q(infmax)s at pH 4.0 than that of Filtrasorb-400, a generally used adsorbent for metal removal. Wide variation in Q(infmax) was observed among the species and ranged from 0.048 to 0.383 mmol per g of sorbent. The uptake capacity of Ganoderma lucidum, which exhibited the highest Q(infmax), was higher than those of other microbial biosorbents reported in the literature

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