Effect of Ultrasonic Fields on Contaminants Adsorbed on Solids

超声波场对固体吸附污染物的影响

• 批准号: 9119492
• 负责人: Mark Tumeo
• 金额: $ 7.67万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-15 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9119492&HistoricalAwards=false
• 关键词: Effect; Ultrasonic; Fields; Contaminants; Adsorbed

This is an award to support preliminary research on the potential use of low intensity, ultrasonic radiation for desorption of contaminants from solid surfaces to which they have been adsorbed including contaminated soils and for regeneration of activated carbon used in water treatment processes. The investigator plans on using ultrasonic radiation that is below the cavitation threshold of the fluid in contact with the solid surfaces. The investigator's research plan includes steps to separate the effects of abrasion, temperature and ultrasonic vibrations. Results of this project are expected to identify the nature of the chemical alteration and possible degradation when organic contaminants of soil and water are exposed to high intensity ultrasonic radiation. This research is expected to provide knowledge as to potential applicability of a process using ultrasonic energy for decontamination of soil and adsorbents used in treatment of water and assist in characterizing the process for potential use in engineering design of decontamination systems.

该奖项旨在支持对低强度超声波辐射的潜在用途进行初步研究，用于从固体表面（包括污染土壤）解吸污染物，以及用于水处理过程中活性炭的再生。研究人员计划使用低于与固体表面接触的流体的空化阈值的超声波辐射。研究者的研究计划包括分离磨损、温度和超声波振动影响的步骤。该项目的结果有望确定土壤和水中有机污染物暴露于高强度超声波辐射时化学变化的性质和可能的降解。这项研究预计将提供有关使用超声波能量对土壤和水处理中使用的吸附剂进行净化的过程的潜在适用性的知识，并协助描述净化系统工程设计中潜在使用的过程。