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Effect of UV dose on degradation of venlafaxine using UV/H2O2: perspective of augmenting UV units in wastewater treatment
Environmental Technology ( IF 2.8 ) Pub Date : 2018-09-19 , DOI: 10.1080/09593330.2018.1521475
Jordan Hollman 1 , John Albino Dominic 1 , Gopal Achari 1 , Cooper H Langford 2 , Joo-Hwa Tay 1
Affiliation  

ABSTRACT 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 H2O2. The study is supported by bench scale degradation experiments on VEN. Results demonstrated that UV can completely degrade VEN, but the addition of H2O2 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 H2O2, 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 H2O2 dosage, a framework is set to allow researchers and engineers to move forward with developing UV/H2O2 systems that meet their future design needs for pharmaceutical removal. GRAPHICAL ABSTRACT

中文翻译:

紫外线剂量对使用 UV/H2O2 降解文拉法辛的影响:在废水处理中增加紫外线单位的前景

摘要 许多水和废水处理厂 (WWTP) 都配备了紫外线系统,可在将水排放到接收水之前进行后处理消毒。本文介绍了一项关于在市政污水处理厂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,并分析了使用紫外线照射并注入 H2O2 的高级氧化工艺的去除率。该研究得到了 VEN 的实验室规模降解实验的支持。结果表明,UV 可以完全降解 VEN,但 H2O2 的加入将伪一级速率常数提高了 2.5 倍。实验室数据的推断表明,在标准操作条件下,典型市政污水处理厂紫外线消毒装置的 VEN 去除率约为 0.4%。加入 10 mg/L H2O2,与现有的紫外线处理相比,VEN 的降解可以增加十倍。通过研究调整 UV 强度、UV 剂量和 H2O2 剂量等参数的影响,设置了一个框架,使研究人员和工程师能够继续开发满足未来药物去除设计需求的 UV/H2O2 系统。图形概要
更新日期:2018-09-19
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