Fe基类Fenton催化剂非均相处理造纸废水

针对传统均相Fenton法深度处理造纸废水中铁泥量大、成本较高等问题，将Fe₂O₃、Al₂O₃、SiO₂、石墨粉采用高温烧结的方式，制备Fe基类Fenton催化剂，并用于非均相Fenton处理造纸废水，可达到节省FeSO₄用量的效果。结果表明，经高温烧结制备的Fe基类Fenton催化剂具有丰富的孔隙结构，在pH值为3、催化剂投加量15 g/L、COD_Cr和H₂O₂质量比1∶0.75、反应时间90 min的条件下，造纸废水COD_Cr去除率为74.8%，且经过10次循环实验仍达70%以上，BOD₅去除率可达67%以上。

Fe-derived Fenton-like Catalyst for Non-homogeneous Treatment of Papermaking Wastewater

To solve the problems of large amount of iron sludge and high cost in the traditional homogeneous Fenton method for the deep treatment of papermaking wastewater， Fe-derived Fenton catalysts were prepared by high temperature sintering of Fe₂O₃， Al₂O₃， SiO₂， and graphite powder， which was used in the non-homogeneous Fenton treatment of papermaking wastewater to achieve the effect of saving the dosage of FeSO₄. The results showed that the Fe-derived Fenton-like catalyst prepared by high-temperature sintering had a rich pore structure. Under the conditions that pH value of 3， catalyst dosage of 15 g/L， mass ratio of COD_Cr and H₂O₂ of 1∶0.75， and reaction time of 90 min， the removal rate of COD_Cr was up to 74.8% and more than 70% even after 10 cycles of experiments. The removal rate of BOD₅ could be more than 67%.