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Preparation of New Fenton Fixed-bed Catalytic Carrier and Its Advanced Treatment for Papermaking Wastewater
Received:February 16, 2021  
DOI：10.11980/j.issn.0254-508X.2021.08.006
Key Words:fixed bed  Fenton oxidation  catalytic carrier  papermaking wastewater
Fund Project:陕西省重点研发计划（编号：2017ZDXM-SF-096）。
Author NameAffiliationPostcode
ZHANG Qiaoxia College of Bioresourees Chemical and Materials 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 Bioresourees Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
ZHANG Anlong School of Environmental Science and Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
XUE Wei College of Bioresourees Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
LIU Ye College of Bioresourees Chemical and Materials Engineering， National Demonstration Center for Experimental Light Chemistry Engineering Education， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
CHENG Bingjun Xi’an Longhua Environmental Protection Technological Co.， Ltd.， Xi’an， Shaanxi Province， 710019 710019
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Abstract:A new type of Fenton fixed-bed catalytic carrier was prepared by immersion-roasting method via using ceramics filter as the carrier. The effects of concentration of FeCl3 solution and roasting temperature on the catalytic activity of the catalytic carrier were studied. The results showed that the catalytic activity of the catalytic carrier was optimum when the concentration of FeCl3 solution was 0.75 moL/L and roasting temperature was 600℃. This new type of catalytic carrier was placed in a fixed bed combined with Fenton oxidation method for advanced treatment of papermaking wastewater. Under the optimal process conditions （initial pH value was 5， addition amount of catalytic carrier was 10 g/L， amount of FeSO4·7H2O was 0.5 g/L， amount of H2O2 （mass fraction 30%） was 0.3 mL/L， reaction time was 60 min）， the CODCr removal efficiency of 72% was reached. Comparing three treatment processes， it could be seen that when the same wastewater treatment efficiency was achieved， the Fenton-fixed-bed catalytic carrier treatment process required the least amount of chemical addition， and the required initial pH of the water sample was the highest.
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