title: Mineralization of polyethylene glycol in aqueous solution by hydrogen peroxide with basic oxygen furnace slag.
abstract: This study evaluated the dissolution behavior of basic oxygen furnace slag (BOF slag) and the performance of H2O2 with BOF slag denoted as H2O2/BOF slag process to degrade polyethylene glycol (PEG) in the aqueous solution. The concentration of total organic carbon (TOC) was chosen as a mineralization index of the degradation of PEG by the H2O2/BOF slag process. A first-order kinetic model with respect to TOC was adopted to represent the mineralization of PEG by H2O2/BOF slag process. The experimental results in this study suggested that dosages with 3.98 x 10(-4) mole min(-1) l(-1) H2O2 and 15 g l(-1) BOF slag loading in the solution at pH 2 provided the optimal operation conditions for the mineralization of PEG yielding a 75.5% treatment efficiency at 100 min reaction time. The H2O2/Fe2+ ratio was then determined to be 13.5:1.
authors.affiliation: Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan.
authors.forename: C S
authors.initials: CS
authors.lastname: Chiou
authors.forename: C F
authors.initials: CF
authors.lastname: Chang
authors.forename: C Y
authors.initials: CY
authors.lastname: Chang
authors.forename: Y P
authors.initials: YP
authors.lastname: Wu
authors.forename: C T
authors.initials: CT
authors.lastname: Chang
authors.forename: Y S
authors.initials: YS
authors.lastname: Li
authors.forename: Y H
authors.initials: YH
authors.lastname: Chen
mesh_terms: D002244:Carbon / Q000032:analysis; D002384:Catalysis; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D007501:Iron; D016877:Oxidants / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*; D012996:Solutions; D013232:Steel; D018505:Waste Management / Q000379:methods*
chemical_list: D007220:Industrial Waste; D016877:Oxidants; D012996:Solutions; D013232:Steel; D011092:Polyethylene Glycols; D002244:Carbon; D006861:Hydrogen Peroxide; D007501:Iron