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Fe-derived Fenton-like Catalyst for Non-homogeneous Treatment of Papermaking Wastewater
Received:September 19, 2023  
DOI：10.11980/j.issn.0254-508X.2024.03.018
Key Words:high-temperature sintering  Fenton-like catalyst  papermaking wastewater  non-homogeneous Fenton
Author NameAffiliationPostcode
ZONG Xiaoning 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 710021
LUO Qing* 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 710021
ZHANG Anlong College of Environmental Science and Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province，710021 710021
JING Tianhao 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 710021
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 710021
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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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