Fe基类Fenton催化剂非均相处理造纸废水  

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

作　　者：宗晓宁 罗清 张安龙 井天昊 刘育星 ZONG Xiaoning;LUO Qing;ZHANG Anlong;JING Tianhao;LIU Yuxing(College of Light Industry Science and Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021;College of Environmental Science and Engineering,Shaanxi University of Science&Technology,Xi’an,Shaanxi Province,710021)

机构地区：[1]陕西科技大学轻工科学与工程学院,轻化工程国家级实验教学示范中心,陕西西安710021 [2]陕西科技大学环境科学与工程学院,陕西西安710021

出　　处：《中国造纸》2024年第3期135-141,共7页China Pulp & Paper

摘　　要：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Fe_(2)O_(3)、Al_(2)O_(3)、SiO_(2)、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FeSO_4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H_(2)O_(2)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,BOD_5去除率可达67%以上。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 Fe_(2)O_(3),Al_(2)O_(3),SiO_(2),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‐SO_(4).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 H_(2)O_(2) 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%.

关 键 词：高温烧结 类Fenton催化剂 造纸废水 非均相FENTON 

分 类 号：X793[环境科学与工程—环境工程]