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- W809970157 abstract "This study was carried out the removal of Cr(VI) which was known to the toxic pollutant in industry using the process of UV and TiO photocatalyst in a circular type reactor. In this experiment, the series of photocatalytic process for the removal of Cr(VI) has been selected as a model reaction in a circular type reactor in order to obtain the basic data on the influence of various experimental parameters such as circulation flow rate, pH of solution, initial Cr(VI) light illumination and TiO dosage, and salicylic acid concentration. The results of this study were as follows; 1. With both UV light illumination and TiO present, Cr(VI) was more effectively eliminated than with either UV or TiO alone. 2. As the circulation flow rate of solution increased, the removal efficiency of Cr(VI) was increased. However, over 2.4 l/min of circulation flow rate, the efficiency wa limited. 3. A increase in the photocatalytic removal of Cr(VI) was noticed with decreasing pH. 4. An increase in the photocatalytic removal of Cr(VI) was noticed with decreasing Initial Cr(VI) concentration and first order kinetics was observed from the result at different initial concentration of Cr(VI). 5. Photocatalytic removal efficiency of Cr(VI) increased with increasing TiO dosage. However, over 1.0 g/l of TiO dosage, the efficiency reached a plateau. 6. As low concentration of saliculic acid were added, there was an increase in the removal efficiency of Cr(VI). However, over 300 mg/l of salicylic acid, the efficiecy was decreased. It eas found that application of photocatalysis to water treatment that contains both Cr(VI) and salicylic acid was possible." @default.
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- W809970157 date "1999-01-01" @default.
- W809970157 modified "2023-09-23" @default.
- W809970157 title "A Study on the Factors Affecting Removal of Chromium(VI) Using $TiO_{2}$ Photocatalyst in a Circular Type Reactor" @default.
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