Treatment of the azo dye in the solution by fenton-SBR process

Muqing Qiu1, Jianxin Shou2*, P

Abstract

Treatment of dye wastewater was experimentally investigated in this study. A combined Fenton-SBR system was employed to treat dye C.I. Acid Black 1 wastewater. With the optimal Fenton conditions: [dye]0=50mg/L, pH=3.50, [H2O2]=0.5mM, and [Fe2+]0=0.025mM, and 25
, the degradation efficiency of C.I. Acid Black 1 in solution reached 96.8%. The hydraulic retention time (HRT) in SBR unit has no more important effect on the degradation efficiency of dye C.I. Acid Black 1 in solution. Under the best operating conditions, 99% removal of dye C.I. Acid Black 1 in solution by Fenton-SBR process was achieved.