Study on the Ibuprofen Removal in Magnetic Sludge-based Activated Carbon Catalytic Ozonation
SUN Zhong'en
LU Siying
FENG Li
ZHANG Liqiu
Abstract：Magnetic sludge-based activated carbon (MSAC) loaded with a series of metals are prepared via an impregnation method and effects of metal doping,catalyst and ozone dosage on ibuprofen (IBP) removal in MSAC catalytic ozonation are investigated,and the reaction mechanism is studied through the contents determination of reactive species.The results show that Mn doping MSAC has the highest catalytic activity and its IBP removal rate is 86.2％,which is 28.3％ higher than that in ozonation alone,when ozone and catalyst dosage are 1.0 mg/L and 50.0 mg/L.When catalyst dosage increases from 50.0 mg/Lto 100.0 mg/L,IBP removal rate is only enhanced by 2.3％ and it increases to 99.7％ from 86.2％ when ozone dosage increases from 1.0 mg/L to 3.0 mg/L.IBP removal rate decreases significantly after adding tert-butyl alcohol and the results of quantitative analysis of reactive species further confirms that the rapid removal of IBP is mainly due to the effect of hydroxyl radicals (· OH),and hydrogen peroxide plays as initiator in the process of · OH formation.
Keywords：magnetic catalystcatalytic ozonationibuprofenmetal-dopingreactive species
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 102-106 )