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首頁> 美國政府科技報告 >Use of Ultra-Violet (UV) Light Emitting Diodes (LEDS) in an Advanced Oxidation Process (AOP) with Brilliant Blue FCF as an Indicator.
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Use of Ultra-Violet (UV) Light Emitting Diodes (LEDS) in an Advanced Oxidation Process (AOP) with Brilliant Blue FCF as an Indicator.

機譯：在高級氧化工藝（aOp）中使用紫外（UV）發(fā)光二極管（LED），以亮藍FCF作為指示劑。

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Water contamination can result from terrorist acts, industrial accidents, or natural phenomena. Advanced Oxidation Processes (AOPs) represent a potentially useful method for water decontamination. This research explored the application of Brilliant Blue FCF as a witness dye in an Advanced Oxidation Process (AOP) employing Ultra-Violet (UV) Light Emitting Diodes (LEDs) with peroxide (H2O2). In addition to exploring the attributes of Brilliant Blue FCF within this application, this research employed this dye to evaluate the effect of varied UV LED duty cycles (pulsing) on the reaction rates of a UV/H2O2 AOP. Experiments performed using Brilliant Blue FCF indicated that it performed suitably as a witness dye with improved characteristics as compared to methylene blue. Further, the experiments indicated that when the LEDs were driven at lower duty cycles (e.g., 10 and 5%) they were 165% to 200% more efficient at driving the UV/H2O2 AOP than they were when driven continuously (e.g., a duty cycle of 100%).

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