Collimated beam (UV test) apparatus

准直光束（紫外线测试）装置

• 批准号: 360232-2008
• 负责人: Gao, Wa
• 金额: $ 0.75万
• 依托单位: Lakehead University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=366349
• 关键词: Collimated; beam; UV; test; apparatus

Ultraviolet light (UV) disinfection is now an accepted technology for disinfection of drinking water and wastewater. To carry out laboratory research in UV disinfection, one needs to use calibrated UV lamps with known emission spectrum and intensity. The requested collimated beam apparatus is such equipment that is designed to expose water samples to UV light on a batch basis. The output from the UV lamp of the collimated beam device is generally uniformly distributed; therefore, it is possible to determine the UV dose response of a given microorganism in water.The requested equipment is essential for the applicants' research programs and training of highly qualified personnel at Lakehead University. The equipment will be used to: 1) investigate the response of the selected waterborne microorganisms to UV radiation after freezing, 2) study the optimum combined UV and chemical disinfection of microorganisms that are not only UV resistant but also can survive under cold temperature conditions, and 3) examine UV inactivation efficiency of selected microorganisms under cold temperature conditions.  The research is expected to have significant impacts on the proper operation of UV disinfection processes for water and wastewater treatment plants operating in cold climate, provide information for developing new UV systems, and better understanding of the impact of cold temperature on disinfection processes.There would be a significant reduction in both scope and the productivity of the applicants' research if the acquisition of the requested equipment is delayed and the students at Lakehead University will miss the opportunity of being trained in this advanced treatment technology.

紫外线（UV）消毒现在是用于饮用水和废水消毒的公认技术。为了进行紫外线消毒的实验室研究，需要使用已知发射光谱和强度的校准紫外线灯。所要求的准直光束装置是这样的设备，其被设计成将水样分批暴露于UV光。从准直光束设备的UV灯的输出通常是均匀分布的;因此，它可以确定给定的微生物在水中的UV剂量响应。所要求的设备是申请人的研究计划和在湖首大学高素质人才的培训必不可少的。该设备将用于：1）研究所选水生微生物在冷冻后对UV辐射的反应，2）研究不仅抗UV而且能在低温条件下存活的微生物的最佳UV和化学消毒组合，和3）在低温条件下检测所选微生物的紫外线灭活效率。该研究预计将对在寒冷气候下运行的水和废水处理厂的紫外线消毒过程的正确操作，为开发新的紫外线系统提供信息，以及更好地了解低温对消毒过程的影响。如果延迟购买所需设备，湖首大学的学生将错过接受这种先进处理技术培训的机会。