Study on Treatment of Phenols-containing Coking Wastewater by Ferric Carbon Micro electrolysis-Fenton Reagent

Treatment of 1800 mg/L phenols-containing coking wastewater by the ferric carbon micro electrolysis-Fenton reagent can satisfy the demand of the biochemical waste water disposing unit.Influences of the original pH,amount of H2O2,reaction time etc.on removal effect of the residual volatile phenols in the wastewater were studied.The optimal conditions were determined by orthogonal experiments as follows: the amount of H2O2 is 3.6 mL/L,the original pH is 3.0,the best reaction time is 180 min,respectively.After the wastewater is treated by flocculation under this conditions,the phenols degrading rate is 82%.