Textile dyeing wastewater treatment by Penicillium chrysogenum: Design of a sustainable process

• DOI: 10.2166/wst.2022.204
• Publication Date: 2022-07-04T02:50:45Z
• Authors: Ines Lanfranconi; María Belén Ceretta; Nora Bertola; Erika Alejandra W...; Ignacio Durruty
• Keywords: Penicillium chrysogenum; Sponge; Textile

Abstract In this work a parametric study and bench bioreactor degradation test of Direct Black 22 (DB22) by Penicillium chrysogenum was performed as first approach to an industrial application, framed within policy sustainable processes development. Three ancillary carbon sources their optimum initial concentrations were studied. These were: glucose, potato starch industry wastewater. Their concentration 6 g/L. The use co-substrate showed the highest decolorization rate COD removal. Degradation DB22 using different immobilization supports (stainless steel sponge, loofah sponge polyethylene strips) studied results that time needed for treatment decreased from 4 d. Phytotoxicity evaluated in final products immobilized cells assays, Lactuca sativa seeds. For all treatments phytoxicity reduced with respect untreated wastewater, except assays strips. Finally, reuse biomass attached carriers performance 1 L scale tested. P. decolorized at least four sucesives reuses. reactor better treatment.