title: Development of photoreactor design equation for the treatment of dye wastewater by UV/H(2)O(2) process.
abstract: The treatment of Direct Yellow 86 dye wastewater by the UV/H(2)O(2) process in continuous annular photoreactors was studied under various UV light intensities, influx concentrations of dye, dosages of H(2)O(2) and dimensions of photoreactor. A photoreactor design equation combined the UV light distribution profile in the reactor and the empirical rate expressions for the decomposition of dye and H(2)O(2) was used to predict the destruction of dye within photoreactors of different geometries at various operating conditions. Experimentally observed removal of the dye pollutant in the plug flow annular reactor agreed well with the theoretical solutions modeled by the developed photoreactor design equation.
authors.affiliation: Department of Environmental Engineering, Da-Yeh University, 112 Shan-Jeau Road, Chang-Hwa 515, Taiwan, ROC. ysshen@mail.dyu.edu.tw
authors.forename: Yung-Shuen
authors.initials: YS
authors.lastname: Shen
authors.forename: Deng-Kae
authors.initials: DK
authors.lastname: Wang
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D004867:Equipment Design; D006861:Hydrogen Peroxide / Q000737:chemistry*; D016877:Oxidants / Q000737:chemistry*; D010084:Oxidation-Reduction; D010777:Photochemistry; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents; D016877:Oxidants; D006861:Hydrogen Peroxide