Valorization of Waste Textile Dyeing by Immobilized Fungus Daedalopsis Eff. Confragosa in Sawdust

Abstract

This study aims to determine optimal valorisation of textile dyeing by immobilized fungus Daedalopsis Eff. Confragosa in sawdust as well as the quality of the valorisation, which covers Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), pH, colour and level of toxicity. This fungus was obtained from plantation areas in Negara, Bali. Textile dyeing wastewater was taken from the Mama & Leon textile dyeing industry, Tabanan Bali. The optimum condition needed to process the dyeing waste was at pH 4 with eight days of incubation. Field-scale textile waste treatment in a reactor containing the immobilized fungus Daedaleopsis eff. confragosa in sawdust for eight days can reduce colour, TSS, COD, and BOD by 79.78%, 779.11%, 88.307%, and 82.932%. Furthermore, textile waste processing results in a lower level of toxicity compared to the one before processing. The level of toxicity of wastewater before it was treated was mildly toxic. Meanwhile, the level of toxicity after treatment was non-toxic. In this paper we have tested the results on a large scale to ensure that this method was applicable for a practical purpose.