title: Sewage-sludge-derived carbonaceous materials for catalytic wet hydrogen peroxide oxidation of m-cresol in batch and continuous reactors.
abstract: In this study, four sewage-sludge-derived carbonaceous materials (SWs) were evaluated for their catalytic wet hydrogen peroxide oxidation (CWPO) performance of m-cresol in batch reactor and continuous reactor, respectively. The SWs were produced by carbonization (SW); carbonization with the addition of CaO (CaO-SW); HNO3 pretreatment (HNO3-SW) and steam activation (Activated-SW). The properties of SW catalysts were assessed by thermogravimetric analysis, Brunauer-Emmett-Teller, Fourier Transform Infrared Spectroscopy, X-ray Fluorescence, Scanning electron microscopy, energy dispersive X-ray analysis and zeta potential. The results showed that SW treated by HNO3 (HNO3-SW) had a high conversion of m-cresol in batch reactor and continuous reactor, respectively. Under the conditions of batch reaction (Cm-cresol = 100 mg L(-1), CH2O2 = 15.7 mmol L(-1), initial pH=7.0, 0.5 g L(-1) catalyst, 80°C, 180 min adsorption and 210 min oxidation), the conversion of m-cresol reached 100% and total organic carbon removal was 67.1%. It had a high catalytic activity and stability on the treatment of m-cresol in CWPO for more than 1100 h. Furthermore, a possible reaction mechanism for the oxidation of m-cresol to 2-methyl-p-benzoquinone by CWPO was proposed.
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.|b University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yu
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.
authors.forename: Huangzhao
authors.initials: H
authors.lastname: Wei
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.|b University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Yu
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.|b University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.|b University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China.
authors.forename: Bin
authors.initials: B
authors.lastname: Gu
authors.affiliation: a Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , People's Republic of China.
authors.forename: Chenglin
authors.initials: C
authors.lastname: Sun
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D003408:Cresols / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D012722:Sewage / Q000032:analysis*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D003408:Cresols; D012722:Sewage; C032538:4-cresol; D009569:Nitric Oxide; D002244:Carbon; D006861:Hydrogen Peroxide
keywords: carbonaceous material; catalytic wet hydrogen peroxide oxidation; degradation; m-cresol; sewage sludge