Acid azo dye remediation in anoxic-aerobic-anoxic microenvironment under periodic discontinuous batch operation: Bio-electro kinetics and microbial inventory

▸ C.I. Acid black 10B degradation was studied in periodic discontinuous batch operation. ▸ Anoxic-aerobic-anoxic microenvironment showed good removal of azo dye. ▸ Azo-reductase and dehydrogenase activity were monitored during dye degradation. ▸ Tafel analysis and bioprocess parameters correlated well with dye removal. ▸ Presence of specific organism capable of dye degradation was observed.