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- W2018973752 abstract "Data are reported on photocatalytic mineralization rates of sodium alginate (SA), which is representative of polysaccharides commonly encountered in surface waters and effluents requiring purification. An agitated vessel-type photocatalytic reactor was employed, with suspended TiO2 nanoparticles, to study the effect of UV-A radiant power per unit volume PR (W per L reactor fluid) for which there are insufficient data. Using initial SA concentration ∼30 mg/L, mineralization rates were determined, by monitoring Total Organic Carbon (TOC) reduction, in the range of UV-A PR = 2.15 to 8.57 W L−1 and TiO2 concentrations 0.5 to 1.5 g/L. For this well-mixed heterogeneous photocatalytic environment, the measured fairly high polysaccharide mineralization rates were fitted to a first order kinetic expression. In the parameter range studied, the kinetic constants k (of order 10−2 min−1) were linearly dependent on PR with a slope in the range ∼0.6 × 10−2 to ∼1.0 × 10−2 L/(W min). An optimum catalyst concentration near 1 g/L TiO2 was observed. The experimental techniques developed and the type of kinetic data obtained are considered useful for designing photocatalytic reactors for practical applications. Moreover, it is encouraging that the measured mineralization rates are in accord with those from a continuously operated hybrid photocatalytic membrane reactor of different geometry." @default.
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- W2018973752 date "2013-08-01" @default.
- W2018973752 modified "2023-10-17" @default.
- W2018973752 title "The effect of UV radiant power on the rate of polysaccharide photocatalytic mineralization" @default.
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- W2018973752 doi "https://doi.org/10.1016/j.cej.2013.06.017" @default.
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