摘要：B ased on the traditional Fe-C micro-electrolysis filler; a new type of Fe-Al-C micro-electrolysis filler had been prepared. The comparison experiments showed that the Fe-Al-C micro-electrolysis filler was more efficient on chemical oxygen demand (COD) and chroma removal than the traditional Fe-C micro-electrolysis filler in methyl orange simulated wastewater treatment. Compared to the Fe-C filler; the COD and chroma removal rate was improved by 19.4% and 12.2%; respectively for the Fe-Al-C filler after reaction of 120 minutes. The process of Fe-Al-C micro-electrolysis filler coupled with H2O2 for methyl orange simulated wastewater treatment has also been studied in the current work. The optimum operating conditions obtained were- initial pH of 3-4; the concentration of auxiliary electrolyte as 0.05mol/L; H2O2 dosing as 0.8ml/L and the reaction time was 60 minutes. The COD and chroma removal rate reached 82% and 92%; respectively under these conditions. The treatment process of methyl orange simulated wastewater fitted the first-order kinetics; the constant of reaction velocity k(COD)=0.0181 h-1; k(chroma)=0.0234 h-1; the related coefficient R2(COD)=0.9949 and R2(chroma)=0.965. The treatment process of methyl orange simulated wastewater were analyzed by UV-vis spectroscopy and the surface properties of the Fe-Al-C filler were analyzed by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).
