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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
收稿日期:2023-09-19  
DOI:10.11980/j.issn.0254-508X.2024.03.018
关键词:  高温烧结  类Fenton催化剂  造纸废水  非均相Fenton
Key Words:high-temperature sintering  Fenton-like catalyst  papermaking wastewater  non-homogeneous Fenton
基金项目:
作者单位邮编
宗晓宁 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 710021
罗清* 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 710021
张安龙 陕西科技大学环境科学与工程学院陕西西安710021 710021
井天昊 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 710021
刘育星 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 710021
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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、CODCr和H2O2质量比1∶0.75、反应时间90 min的条件下,造纸废水CODCr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。
Abstract: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 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%.
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