Pb[2+] removal capacity and initial removal rate were compared between non-biomaterials (granular activated carbon, powdered activated carbon, ion exchange resin, zeolite) and biomaterials (activated sludge, Aureobasidium pullulans, Saccharomyces cerevisiae). The removal capacity of biomaterials were greater than that of non-biomaterials, generally. The removal capacities of non-biomaterials and biomaterials were shown on the order of ion exchange resin £¾ zeolite £¾ granular activated carbon £¾ powdered activated carbon and A. pullulans £¾ S. cerevisiae £¾ activated sludge, respectively. In the initial removal rate, the non-biomaterials showed powdered activated carbon £¾ granular activated carbon £¾ zeolite £¾ ion exchange resin and the biomaterials showed A. pullulans £¾ activated sludge £¾ S. cerevisiae. Comparing the removal capacity and initial removal rate of activated sludge with those of other non-biomaterials and biomaterials, activated sludge may have an availability on the removal of heavy metal ions by the economical and pratical aspects.
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