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 treat-ment 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 Fe-SO4.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 CODCr and H2O2 of 1∶0.75,and reaction time of 90 min,the removal rate of CODCr 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％.
万方数据
维普
