Abstract

Using four carriers, Panus conchatus with the highly effective decoloration producing laccase was immobilized by the embedding method. By comparing their balling performance and the mechanical strength, the optimal immobilized carrier was determined. The feasibility of the immobilized Panus conchatus for decoloration of fur dye industrial wastewater was studied. The results show that the immobilized bio-balls have the higher dye decoloring speed and rate than those of the free Panus conchatus. The immobilized bio-balls prepared by PVA complex embedding method have the better comprehensive performances so as to shorten the decoloring time and increase the decoloring rate. The decoloring rates of the immobilized bio-balls to the acid dyes and the disperse dyes are 98.09% and 91.47% respectively.