폐 페니실리움 균주를 이용한 중금속 흡착특성
Characteristics of Heavy Metals Bio-sorption by Peniciilium Biomass
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Abstract
The goal of this research was to investigate the characteristics of Penicillium biomass on the metal adsorption/ desorption. Metal sorption capacity of Penicillium was determined by a series of batch experiments. Heavy metals studied in this research were Cd+2, Cu+2, Cr+3, Pb+2, and Zn+2. Experimental results showed that metal adsorption by Penicillium biomass was rapid and reached equilibrium in 30 minutes for most cases. Biosorption for all five metals was pH dependent and maximum sorption occurred at the range of pH 5.5 - 7.0 for the tested metals. The higher metal sorption was obtained with the smaller particle size of Penicillium, indicating the surface area of biomass relevant to metal binding capacity. Bio-sorption isotherms showed that the order of metal sorption capacity by Penicillium was Cu+2 > Pb+2 > Cr+3 > Cd+2 > Zn+2.
참고문헌 (4)
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