Online differential UV aborbance for DBP estimation

用于 DBP 估算的在线微分 UV 吸光度

• 批准号: 490772-2015
• 负责人: Dorea, Caetano
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586612
• 关键词: Online; differential; UV; aborbance; DBP

Differential UV spectrophotometry (DUVS) can be used as a relatively simple, fast, and low-cost surrogate for regulated trihalomethanes (THMs) and haloacetic acids (HAAs) that could help municipalities to overcome their problems with managing the levels of these unwanted substances. It is based on the principle that differences in UV absorbance at specific wavelengths before and after chlorination can be correlated to certain DBPs. Online spectrophotometer "probes" such as those from Aquatic Life Ltd. lend themselves particularly useful for the possibility of in situ real time estimation, monitoring and control of disinfection by-products (DBPs) in water treatment plants through the principles of DUVS. Current bottlenecks for such applications are context-specific (i.e. varied water quality characteristics resulting in UV spectra that can't be generalised) and operational (e.g. blockage of light path by flocculent material or precipitates). This project seeks to develop a protocol to enable Aquatic Life Ltd. to exploit the potentially strong correlations between UV spectra of water at different stages of a treatment chain (i.e. before and after disinfection) and DBP compounds of interest.

差示紫外分光光度法(DUVS)可以作为一种相对简单、快速、低成本的分析方法 受管制的三卤代甲烷(THMs)和卤代乙酸(HAAs)，可帮助市政当局克服 他们在管理这些有害物质的水平方面存在的问题。它是基于这样一个原则： 氯化前后在特定波长的紫外线吸光度的差异可以与某些 DBPS。在线分光光度“探头”，如来自水生生物有限公司的探头，尤其适合自己。 有助于现场实时评估、监测和控制消毒副产品 通过DUVS的原理，在水处理厂中使用DBPS。目前此类应用程序的瓶颈是 具体情况(即不同的水质特征导致不能概括的紫外线光谱)和 运行中(例如，絮凝物或沉淀物堵塞光路)。该项目旨在开发一种 使水生生物有限公司能够利用水的紫外线光谱之间潜在的强相关性的议定书 在处理链的不同阶段(即消毒前和消毒后)和感兴趣的DBP化合物。