Abstract:
The objective of this study was to investigate the performance of anaerobic baffled reactor treating molasses-ethanol
wastewater. Two types of wastewater were used; the concentrated wastewater and the diluted wastewater (10 times dilution).
The reactor performance was evaluated in terms of COD removal. The characteristics of influent wastewater were
150,000-180,000 mg COD/L and 12,000 mg/L of suspended solids. The results have been found that the removal
of organic content in the reactor treating the diluted wastewater was higher than the reactor treating the concentrated
wastewater. For the reactor treating the diluted wastewater, it could obtain the organic loading rate of 7 kg COD/m3d
with 60 percent removal efficiency and the effluent had 6,800 mg COD/L including 500 mg/L of suspended solids.
On the other hand, for the reactor treating the concentrated wastewater, it could obtain the organic loading rate of 2 kg
COD/m3d with decreasing continuously until 50 percent removal efficiency and the effluent had 70,000 mg COD/L
including 26,000 mg/L of suspended solids.