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

水固定床吸附去除有机污染物及吸附剂光催化再生

• 批准号: 9103307
• 负责人: John Crittenden
• 金额: $ 19.65万
• 依托单位: Michigan Technological University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9103307&HistoricalAwards=false
• 关键词: Removal; Organic; Pollutants; Water; Fixed

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.

这是一个奖项，以支持研究，以确定 去除有机物的工艺的技术可行性 从水中去除具有潜在毒性的物质。 这个过程涉及到受污染的水通过 固定床，吸附介质和再生的 通过光催化方法的废吸附介质 基于n型半导体光催化剂的使用， 如二氧化钛。 吸附介质的再生 和被吸附物的破坏， 当催化剂被氧化时， 受到超紫外和近超紫外的照射 光辐射 吸附过程被认为是有效的， 去除水中的有机污染物。 经济 吸附的可行性在很大程度上取决于 再生吸附剂的吸附性能， 介质和有效地处理有机物质 在再生过程中释放。 成果 研究预计将用于设计数学 可用于潜在选择的模型， 工艺和系统的工程设计 市政和工业用水净化 需求