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Title

Reactor Design Development of Chemical Oxygen Demand Flow System and Its Application

Pages

 Start Page 480 | End Page 494

Abstract

 Development of Chemical Oxygen Demand (COD) Flow system has been conducted by using TiO2/Ti electrode. This study aims to develop the Flow system portable reactor can be used for determination of COD value as a model design in a river, gutter, and disposal of industrial wastewater. A highly ordered the TiO2 nanostructure was grown onto Ti plate by anodizing method then calcinated in temperature 500 ° C for 1. 5 h. The electrochemical test on TiO2/Ti electrode was performed by using Linear Sweep Voltammetry technique to investigate the high photo-oxidation when ultraviolet (UV) light irradiation. Specifically, the determination of COD value of Sodium Lauryl Sulfate, Hexadecyltrimethylammonium bromide, and 4-oktilfenol poly-ethoxylate Surfactants in Flow system was applied by using Multi-Pulse Amperometry technique based on Faraday’ s Law (Q=∫ Inet dt). The excellent sensing of COD value using TiO2/Ti electrode by Flow system showed that SLS, HDTMA-Br, and Triton X-100 Surfactants in the concentrations of 1. 0 mg/L, 3. 0 mg/L, 5. 0 mg/L, 7. 0 mg/L, and 9. 0 mg/L were (1. 33 mg/L, 2. 92 mg/L, 4. 63 mg/L, 6. 68 mg/L and 9. 43 mg/L); (0. 78 mg/L, 3. 25 mg/L, 5. 21 mg/L, 7. 42 mg/L and 9. 06 mg/L), and (0. 71 mg/L, 3. 21 mg/L, 5. 05 mg/L, 7. 42 mg/L and 8. 61 mg/L), respectively.

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