DETOXIFICATION OF MERCURIC CHLORIDE BY CEPHALOSPORIUM TABACINUM F2
烟草头孢霉F2对氯化汞解毒作用的研究

After 16 hours growing of a mercury-resistant fungus, Cephalosporium ta-bacinum, in a liquid medium containing 200mg/L HgCl2, the concentration of HgCl2 reduced 90% and a rapid growth of the fungus was followed. The effects of nutrients, concentration of Hg, precultivation condition, pH, and temperature on the detoxification and the mechanism of the detoxification were investigated. The results indicated that the strain is able to reduce HgCl2 to elemental mercury and 12% of Hg was evaporated, 7% of Hg was uptaken by the cells and the rest was precipitated into the bottom as elemental mercury granules.