Biodegradation of Red B dye by Bacillus sp. OY1-2.
Batch tests were employed to investigate the effects of aerobic and anoxic conditions on the biodegradation of Red B dye by Bacillus OY1-2. Results from batch experiments demonstrated anoxic conditions were beneficial for rapid biodegradation of Red B dye in comparison to aerobic conditions. Biodegradation is a major mechanism in the decolorization of Red B dye in comparison with biosorption, which accounted for only 8% of the total decolorization efficiency. Reactors packed with granular activated carbon (GAC) and inoculated with Bacillus OY1-2 were investigated to treat a synthetic wastewater under anoxic conditions. In the absence of cosubstrates, Red B dye was degraded; however, a significant improvement in degradation resulted with the addition of cosubstrates.
Li
J G
JG
Stantec Consulting Ltd., 3260 Devon Drive, Windsor, Ontario, Canada N8X 4L4.
Lalman
J A
JA
Biswas
N
N
D001407:Bacillus / Q000502:physiology*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D004396:Coloring Agents / Q000378:metabolism*; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000379:methods*
D004396:Coloring Agents