Comparative study of different systems for adsorption and catalytic oxidation of hexamine in industrial wastewaters |
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| Affiliation: | 1. College of Sciences, Xi''an University of Architecture and Technology, Xi''an, 710055, China;2. School of Environmental and Municipal Engineering, Xi''an University of Architecture and Technology, Xi''an 710055, China |
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| Abstract: | This work reports adsorption and catalytic oxidation process for degradation of hexamine (HMT)-containing industrial wastewater based on the reduction in total organic carbon. The studied systems include hydrogen peroxide, MCM-41, phosphotungstic acid (PTA)/MCM-41 embedded via impregnation method, PTA/H2O2 and PTA/MCM-41 embedded via impregnation or direct synthesis methods in the presence of hydrogen peroxide. The TOC results indicated that the system including PTA embedded within MCM-41 via direct synthetic method in the presence of H2O2 has a higher performance for degradation of HMT-containing wastewater. The total organic carbon for the mineralization of HMT was obtained to be 57%, under optimum conditions. |
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| Keywords: | Hexamine-containing waste Advanced oxidation process Phosphotungstic acid Direct synthetic method Kinetic study |
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