Deciphering cost-effective biostimulation for dye-laden wastewater treatment using immobilized cell system

Abstract

This kinetic study provided a first-attempt model prediction to elucidate characteristics of azo dye decolorization in immobilized cell systems (ICSs) using indigenous Aeromonas hydrophila as model biocatalysts. Using mass transfer differential equation, this intrinsic kinetic study could uncover theoretical mysteries behind our prior findings of ICS operation. Moreover, the kinetic-rate constant analysis also confirmed the promising feasibility of threshold operation criteria ( e.g., maximum allowable treatment concentration), which were previously determined via analysis of a family of constant-slope isoclines for biostimulation. This kinetic modeling coupled with graphical analysis could also provide a plausible evaluation to determine the most economically feasible biostimulation strategy for non-growth associated biodegradation ( e.g., dye decolorization) in ICSs for possible industrial applications.