Decolorization of congo red, rhodamine B was investigated by the white rot fungus Irpex lacteus which has biodegrading capability of various recalcitrants. White rot fungus Irpex lacteus is immobilized by PVA-freezing method. An immobilized Irpex lacteus decolorizes 91% of congo red in 8 days under culture with glucose 2%(initial conc.). It also showed 70% of decolorization at 3 days in the state of putting MnSO4 1mM.
But, rhodamine B has no significant differences about decolorization among different mixture ratio of Irpex lacteus with PVA, concentration of carbon, nitrogen and manganese sulfate.

• 원찬희(전북대학교 환경공학과) | Chan-Hee Won (Dept. of Environmental Engineering, Chonbuk Natíonal Univ.)
• 김종신(전북대학교 환경공학과) | Jong-Sin Kim (Dept. of Environmental Engineering, Chonbuk Natíonal Univ.)
• 박상숙(순천대학교 환경공학과) | Sang-Sook Park (Dept. of Environmental Engineering, Sunchon Natíonal Univ.)