CAJ | 학술논문

以等体积浸渍法制备了负载型Fe2O3/γ-Al2O3催化剂，分别采用XRD、SEM和BET对催化剂结构进行了表征。研究了Fe2O3/γ-Al2O3催化氧化深度处理造纸废水的工艺，分别考察了反应温度、催化剂加入量、H2O2加入量等因素对造纸废水降解效果的影响，得出较佳的催化氧化处理造纸废水的工艺条件。在反应温度为70℃，催化剂投加质量浓度为2.5 g/L，H2O2投加质量浓度为3.7 g/L，pH=8.10，反应时间90 min条件下，造纸废水COD去除率可达86.2%，脱色率达到98.6%以上。催化剂稳定性高，铁离子析出质量浓度为0.08 mg/L，对反应影响可以忽略。
이등체적침지법제비료부재형Fe2O3/γ-Al2O3최화제，분별채용XRD、SEM화BET대최화제결구진행료표정。연구료Fe2O3/γ-Al2O3최화양화심도처리조지폐수적공예，분별고찰료반응온도、최화제가입량、H2O2가입량등인소대조지폐수강해효과적영향，득출교가적최화양화처리조지폐수적공예조건。재반응온도위70℃，최화제투가질량농도위2.5 g/L，H2O2투가질량농도위3.7 g/L，pH=8.10，반응시간90 min조건하，조지폐수COD거제솔가체86.2%，탈색솔체도98.6%이상。최화제은정성고，철리자석출질량농도위0.08 mg/L，대반응영향가이홀략。
Supported Fe2O3/γ-Al2O3 catalyst has been prepared by isopyknic impregnation method and characterized by X-ray diffraction(XRD),scanning electron microscopy (SEM) and BET. The process of Fe2O3/γ-Al2O3 catalytic oxidation used for the advanced treatment of paper-making wastewater has been studied. The influencing factors , such as reaction temperature,catalyst dosage,hydrogen peroxide dosage,etc.,on the degradation effectiveness of paper-making wastewater are investigated respectively,and the optimized technological conditions for treating paper-making wastewater by catalytic oxidation have been obtained. When the reactive temperature is 70 ℃,mass concentration of catalyst dosage 2.5 g/L,mass concentration of hydrogen peroxide dosage 3.7 g/L,pH=8.10,and reaction time 90 min,the COD removing rate from the paper-making wastewater can reach 86.2%,chroma removing rate 98.6%above. The catalyst has high stability,the separate concentration of Fe ions is 0.08 mg/L and its reaction effects can be neglected.