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Novel photocatalytic reactor and process for wastewater treatment.

机译：新型光催化反应器及废水处理方法。

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Heterogeneous photocatalysis, as a technology for wastewater treatment, is a very attractive approach for treating low concentration, high volume fluids.; An annular fluidized bed photocatalytic reactor operating in absorption and regeneration modes has been constructed for the purpose of this study.; A technique using radioactive particle and two gamma cameras arranged perpendicularly to each other has been used successfully in order to study the fluidized bed behavior. This three dimensional Radioactive Particle Tracking (RPT) can enable to predict the amount of UV light a particle would receive during illumination, which decides the production rate of hydroxyl radicals and in turn the reaction rates. Also, CT Scanning of the bed at various superficial velocities provides a tool to predict the bed voidage reliably and accurately, in a particular region of interest when the conventional theory fails. A few reaction experiments conducted with a view to prove the technology in principle point towards more investigation as the reaction path proceeds towards polymerization instead of mineralization in the absence of hydrogen peroxide. (Abstract shortened by UMI.)
机译：非均相光催化技术作为一种废水处理技术，是一种用于处理低浓度，高容量流体的极具吸引力的方法。为了该研究的目的，已经构造了以吸收和再生模式运行的环形流化床光催化反应器。为了研究流化床的行为，已成功使用了一种使用放射性粒子和两个彼此垂直布置的伽马相机的技术。这种三维放射性粒子跟踪（RPT）可以预测粒子在照射过程中将接收的UV光量，这决定了羟基自由基的产生速率，进而决定了反应速率。而且，当常规理论失败时，以各种表观速度对床进行的CT扫描提供了一种工具，可以在特定的目标区域中可靠，准确地预测床的空隙度。为了证明该技术原理进行的一些反应实验原则上指向更多的研究，因为在不存在过氧化氢的情况下，反应路径趋向于聚合而不是矿化。 （摘要由UMI缩短。）

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