Further electrochemical degradation of real textile effluent using PbO2 electrode

Abstract

A commercial PbO2 electrode was adopted as the anode for the electrochemical degradation of the real textile effluent with the initial COD of 56.0 mg L and the stainless steel plate as the cathode. The effect of the initial pH, the electrolyte flow rate and the cell voltage on the COD, the current efficiency and the energy consumption were investigated without the-1 addi-tion of NaCl or Na2SO4. The experimental results illustrated that the PbO2 electrode can reduce the COD of the textile effluent from 56.0 mg L to 26.0 mg L with the current efficiency of 86.1% and the energy consumption of 17.5 kWh kg (per-1 kilogram of degraded COD) under the optimal operating conditions. Therefore PbO-1-12 electrode as the anode was promising to further electrochemically degrade the real textile effluent.