ENHANCED ELECTROCHEMICAL OXIDATION OF ANIONIC SURFACTANTS

The surfactant wastewater treatment by electro-chemical oxidation with or without peroxide hydrogen was investigated The two anionic surfact ants studied here were alkylbenzene sulfonate (ABS) and linear alkylbe nzene sulfonate (LAS), both of them being widely used in the household and industrial detergents. Experiments were conducted to examine the effects of pH, electrolyte concentration; time of electrochemical; oxi dation, power input and amount of hydrogen peroxide (H2O2) on the surf actant removal and other water quality parameters. Optimum operating c onditions were experimentally determined. The enhanced version of elet rochemical oxidation (i.e. with addition of hydrogen peroxide) was fou nd to be Significantly more efficient than that without.