Abstract: The ironcarbon microelectrolysis process was used to treat furfural wastewater. Effects of wastewater pH, reaction time, the type of iron on the reaction were investigated. The optimal condition experiment results indicate that the pH value of furfural wastewater is 1.5, the volume ratio of Fe to C is 1 ∶4, the type of iron is cast iron, reaction time is 30 min under aeration. Under the above conditions, the removal of COD_Cr was 75%, BOD₅/COD_Cr increased from 0.38 to 0.6, which makes the furfural wastewater be of benefit to following biochemistry process.

Key words: furfural wastewater, ironcarbon micro-electrolysis, reaction time, aeration, removal efficiency