Department of Civil Engineering, Schulich School of Engineering, University of Calgary, Calgary, Canada.
Department of Chemistry, University of Calgary, Calgary, Canada.
Environ Technol. 2020 Apr;41(9):1107-1116. doi: 10.1080/09593330.2018.1521475. Epub 2018 Sep 19.
Many water and wastewater treatment plants (WWTPs) are fitted with a UV system that provides post treatment disinfection before the water is released to receiving water. This paper presents a study on expected removal for the pharmaceutical venlafaxine (VEN) in a typical UV unit at a municipal WWTP with analysis of removal rates of an advanced oxidation process using UV irradiation with injection of HO. The study is supported by bench scale degradation experiments on VEN. Results demonstrated that UV can completely degrade VEN, but the addition of HO increased pseudo first order rate constant by up to 2.5 times. Extrapolations of the lab data indicated that removal rates of VEN at the UV disinfection unit of a typical municipal WWTP are approximately 0.4% at standard operating conditions. With the addition of 10 mg/L of HO, degradation of VEN can be increased by ten times over existing UV treatment. By studying the impact of adjusting parameters such as UV intensity, UV dosage, and HO dosage, a framework is set to allow researchers and engineers to move forward with developing UV/HO systems that meet their future design needs for pharmaceutical removal.
许多水和废水处理厂 (WWTP) 都配备了紫外线系统，在将水排放到接收水之前提供后处理消毒。本文介绍了在市政 WWTP 的典型紫外线装置中，药物文拉法辛 (VEN) 的预期去除率的研究，该研究分析了使用紫外线辐照注入 HO 的高级氧化工艺的去除率。该研究得到了 VEN 批处理降解实验的支持。结果表明，紫外线可以完全降解 VEN，但添加 HO 可将伪一级速率常数提高多达 2.5 倍。实验室数据的推断表明，在典型市政 WWTP 的紫外线消毒装置中，VEN 的去除率在标准操作条件下约为 0.4%。通过添加 10mg/L 的 HO，可以将 VEN 的降解速度提高十倍以上，超过现有的紫外线处理。通过研究调整紫外线强度、紫外线剂量和 HO 剂量等参数的影响，可以为研究人员和工程师制定一个框架，以便他们能够开发出满足未来药物去除设计需求的紫外线/HO 系统。
