Removal of Organic Pollutants From Water Fixed-Bed Adsorption and Photocatalytic Regeneration of the Adsorbent

该奖项旨在支持研究确定从水中去除具有潜在毒性的有机物质的工艺的技术可行性。该工艺包括污染的水通过固定床、吸附介质和通过基于使用n型半导体光催化剂（如二氧化钛）的光催化工艺再生耗尽的吸附介质。预期吸附介质的再生和吸附物的破坏是通过在超和近超光辐射照射催化时形成的自由基来完成的。吸附过程被认为是去除水中有机污染物的有效方法。吸附的经济可行性在很大程度上取决于再生吸附介质的吸附性能和有效处理再生过程中释放的有机物的能力。预计这项研究的结果将用于设计数学模型，这些模型可用于可能的选择和工程设计过程和系统，以用于市政和工业需要的水净化。

This is an award to support research to determine the technical feasibility of a process for removal of organic substances of potentially toxic significance from water. The process involves passage of contaminated water through a fixed-bed, adsorbing medium and regeneration of the exhausted adsorbing medium by a photocatalytic process based on use of n-type semiconductor photocatalysts such as titanium dioxide. Regeneration of the adsorbing medium and destruction of the adsorbates are expected to be accomplished by radical species formed when the catalysis is subjected to illumination with ultra- and near-ultra light radiation. Adsorption processes are recognized as being effective for removal of organic pollutants from water. Economic feasibility of adsorption depends largely on ability to regenerate the adsorbing properties of the adsorbing medium and to deal effectively with the organic substances released during the regeneration process. Results of this research are expected to be used for devising mathematical models that can be used in potential selection and engineering design of processes and systems for use in decontamination of water for municipal and industrial needs.