Biological detoxification of As(III) and As(V) using tea waste/MnFe_2O_4 immobilized Corynebacterium glutamicum MTCC 2745

摘要

The present study has dealt with the design of Simultaneous Biosorption and Bioaccumulation (SBB) batch system for arsenic (As(III) or As(V)) ion removal from wastewater. Tea waste/MnFe_2O_4 composite was used as carrier to immobilize Corynebacterium glutamicum MTCC 2745. This approach was accepted for SBB of arsenic ion from wastewater. The surface texture of the biomass was investigated through Fourier Transform Infrared (FT-IR), Scanning Electron Microscopy (SEM) analysis. Various parameters which govern their optimal removal were optimized. The minimum contact time to reach equilibrium is about 240 min at pH 7.0 at 30 °C temperature using 1 g/L biosorbent for both ions. The use of 0.1% (v/v) formaldehyde as a disinfecting agent inhibited the growth of bacteria existing in the final wastewater discarded.