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pp.80-86
Odorous compounds produced from blackwater commonly cause domestic nuisance complaints. In this study, aseries of experiments was conducted to apply an electrolytic oxidation system to abate the odor problems fromblackwater. The electrolytic process removes odorous compounds from the liquid sources using direct and indirectoxidation; therefore, the system performance mainly relies on electrode materials. Four different electrodematerials, SS304, SS316, Ti, Ti/IrO₂, were applied, and the electrolytic oxidation showed that hydrogen sulfideand organic constituents were effectively removed. However, the weights of electrodes, SS304 and SS316, weredecreased by 7.5~8% due to the electrochemical decomposition from the anode surface. In order to improve thedurability and economical feasibility, SS304 was used as the cathode while Ti/IrO₂ was used as the anode. Theelectrode combination with the different materials (Ti/IrO₂:SS304) showed the same odor removal efficiency asthat using the same material (Ti/IrO₂:Ti/IrO₂). Consequentially, the electrolytic reaction to oxidize odorous andorganic constituents in humane manure was strongly affected by the electrode materials, and its combination needsto be carefully selected to achieve better performance.
