Efficacy of Continuous Flow Reactors for Biological Treatment of 1,4-Dioxane Contaminated Textile Wastewater Using a Mixed Culture

The goal of this study was to evaluate the biodegradation 1,4–dioxane using a mixed biological culture grown in textile wastewater sludge with as sole carbon source. conditions for long-term evaluation degradation were determined and optimized by batch scale analysis. Moreover, Monod’s model used determine biomass decay rate unknown parameters. soluble chemical oxygen demand (sCOD) concentration test, gas chromatography/mass spectrometry (GC/MS) measure concentrations via Two types reactors (continuous stirred reactor (CSTR) plug flow (PFR)) treatment from operated more than 120 days under conditions. These microbial results indicated efficient presence competitive inhibitor, an increase time 13.37 h 55 h. A specific substrate utilization 0.0096 mg 1,4–dioxane/mg MLVSS/h observed at hydraulic retention 20 operation 3000 mg/L produced culturing process. In analysis, effluent 3 <1 CSTR PFR, respectively. higher removal efficacy PFR due production MLVSS 4000 compared outcome environment.