PHANEORCHAETE CHYRSOSPOSIUM IMMOBILIZATION FOR CONTINUOUS TREATMENT OF ION EXCHANGE RESINS EFFLUENT

摘要

Adhesion of Phanerochaete chrysosporium to various solid carriers was studied. Amount of immobilized mycelium was higher for porous and rough (polyurethane foam; Scotch-Brite~(TM) and Poraver~(TM)) than for nonporous and smooth carriers (polyvinylchloride and stainless steel). Mycelia were significantly more active when immobilized on porous/rough carriers. These results were attributed to the roughness effects of solid surfaces as well as porosity, which protect cells against the detrimental effects of shear stress. The ability of P. chrysosporium immobilized on polyurethane foam (PUF) and on Scotch-Brite?(SB) to treat the effluent efficiently for a long-term operation was confirmed. Decolorization efficiencies of 67% and 63% and phenolics reduction of 65% and 63% were achieved for PUF and SB, respectively, during the repeated-batch tests conducted for 31 days.