Development of UV dosimeter for UV flow device using fluorescent analysis and photocatalytic reaction.

研制了一种快速、简便地测量紫外照射剂量的紫外流装置化学剂量计。采用荧光测定法和光学增白剂在类似饮用水的高透明度条件下进行。考察了光催化剂对反应的促进作用以及多色灯消毒效果的波长依赖性。结果表明，光增白剂FBA-1在高透明条件下不受浓度和紫外强度的影响，且一级反应材料无活性基团，光催化剂增强效果不明显。此外，还对流动装置中假设扩散光模型和层流模型的紫外剂量分布进行了模拟。生物剂量计和FBA-1剂量计的模拟结果与实验结果误差在20%左右。此外，短波光的消毒效果更高。然而，由于考虑到多色灯的输出光谱，短波长的影响很小，因此人们认为这种荧光化学剂量计也可以应用于多色灯。

The chemical dosimeter that measures the UV irradiation dose promptly and handily for UV flow device was examined. The fluorescent measurement and the optical whitening agent were used to do under the high transparency condition similar as drinking water. The reaction promotion using the photocatalyst and the wavelength dependency of disinfection efficiency assuming to apply the polychromatic lamp were examined. It was observed that 0ptical whitening agent FBA-1 were neither the concentration nor the UV intensity dependency, and first order reaction material withno active moiety, and enhancement by photocatalyst wasn’t confirmed in high transparentcondition. In addition, the simulation of the UV dose distribution that assumed thediffusion light model and the laminar flow model in the flow device was implemented. And the results of simulation and the outcome of an experimental results of the bio dosimeter and FBA-1 dosimeter were within about 20 percent in error margin. Moreover, it was observed that the disinfection efficiency of short wavelength light was higher. However, it was thought to be able to apply this fluorescent-chemical dosimeter also to the polychromatic lamp because the influence of short wavelength was a little considering output spectrum of the lamp.