Effect of environmental parameters on decolorization of textile wastewaterusing Phanerochaete chrysosporium

Effect of various parameters such as size of inoculum, temperature, carbon source on decolorization of textile wastewater by Phanerochaete chrysospori um was investigated. Textile wastewater decolorization occurred during the primary phase of growth and secondary metabolism in carbon and nitrogen lim ited medium, respectively. It was found that glucose concentration up to 0. 3 g/l has considerable effect on decolorisation rate. Further, it was also found that the concentration of the organic nitrogen of the effluent stream was sufficient to furnish the decolorisation process. It was observed that the inoculum size in this case within 10% increased the decolorisation rat e rapidly. It was found that the temperature rise from 20 to 38 degreesC en hanced the rate of decolorization. The optimum temperature for decolorisati on was found to be about 35 degreesC. Effect of pH from 2-4 on decolorizati on was also investigated. It is concluded that using Phanerochaete chrysosp orium, decolorization of the azo dye containing effluent of the textile ind ustry was achieved to about 96% within 28 h of operation.