UV/Chlorine-BAC treatment of antidepressant drug in drinking water: efficacy, process optimization, and microbiological characterization

IF 6.1 2区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL
Xianzhong Li, Wanli Yan, Jianguo Li, Kaiting Zhang, Chengsong Ye, Mingbao Feng, Xin Yu
{"title":"UV/Chlorine-BAC treatment of antidepressant drug in drinking water: efficacy, process optimization, and microbiological characterization","authors":"Xianzhong Li, Wanli Yan, Jianguo Li, Kaiting Zhang, Chengsong Ye, Mingbao Feng, Xin Yu","doi":"10.1007/s11783-024-1887-1","DOIUrl":null,"url":null,"abstract":"<p>The environmental pollution caused by psychotropic drugs harms human health and has prompted a stronger emphasis on research into water treatment measures. The UV/Chlorine-biological activated carbon (BAC) combined process was employed in this study to treat amitriptyline (AMT), a typical psychotropic drug, in slightly contaminated drinking water. The removal efficiency of AMT in drinking water by UV/Chlorine and the feasibility of combining it with BAC were determined. The results demonstrated that the removal efficiency of 1 μmol/L AMT could reach 98.5% of the 2.0 mg/L chlorine and UV treated for 30 min. A significant removal improvement of AMT was 10%–45% compared to UV alone, Chlorine alone, and other oxidants combined, especially the SOUR (Specific Oxygen Uptake Rate), which was 57%–90% compared to other oxidants combined. Secondly, the optimal process parameters for UV/Chlorine-BAC treatment of slightly contaminated drinking water were a combination of UV exposure, chlorine dosage of 2 mg/L, and reaction times of 15 min followed by 30 min of BAC treatment. The AMT degradation, COD<sub>Mn</sub> removal efficiency, and NO<sub>3</sub><sup>−</sup>–N production was 88%, 65%, and 95%, respectively. There was no significant effect on the number of microorganisms in the BAC medium, ensuring good long-term operation. Furthermore, an investigation was conducted to assess the influence of optimal process operation on the microbial community structure within BAC. This analysis unveiled a positive feedback loop in the colony architecture after implementing ideal process parameters. This study provides significant inspiration for addressing residual antidepressant issues using traditional drinking water treatment processes.\n</p>","PeriodicalId":12720,"journal":{"name":"Frontiers of Environmental Science & Engineering","volume":null,"pages":null},"PeriodicalIF":6.1000,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Environmental Science & Engineering","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s11783-024-1887-1","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0

Abstract

The environmental pollution caused by psychotropic drugs harms human health and has prompted a stronger emphasis on research into water treatment measures. The UV/Chlorine-biological activated carbon (BAC) combined process was employed in this study to treat amitriptyline (AMT), a typical psychotropic drug, in slightly contaminated drinking water. The removal efficiency of AMT in drinking water by UV/Chlorine and the feasibility of combining it with BAC were determined. The results demonstrated that the removal efficiency of 1 μmol/L AMT could reach 98.5% of the 2.0 mg/L chlorine and UV treated for 30 min. A significant removal improvement of AMT was 10%–45% compared to UV alone, Chlorine alone, and other oxidants combined, especially the SOUR (Specific Oxygen Uptake Rate), which was 57%–90% compared to other oxidants combined. Secondly, the optimal process parameters for UV/Chlorine-BAC treatment of slightly contaminated drinking water were a combination of UV exposure, chlorine dosage of 2 mg/L, and reaction times of 15 min followed by 30 min of BAC treatment. The AMT degradation, CODMn removal efficiency, and NO3–N production was 88%, 65%, and 95%, respectively. There was no significant effect on the number of microorganisms in the BAC medium, ensuring good long-term operation. Furthermore, an investigation was conducted to assess the influence of optimal process operation on the microbial community structure within BAC. This analysis unveiled a positive feedback loop in the colony architecture after implementing ideal process parameters. This study provides significant inspiration for addressing residual antidepressant issues using traditional drinking water treatment processes.

Abstract Image

紫外线/氯-BAC 处理饮用水中的抗抑郁药物:功效、工艺优化和微生物特征
精神药物造成的环境污染危害人类健康,促使人们更加重视水处理措施的研究。本研究采用紫外/氯-生物活性炭(BAC)组合工艺处理轻微污染饮用水中的典型精神药物阿米替林(AMT)。研究确定了紫外线/氯对饮用水中阿米替林的去除率,以及将紫外线/氯与生物活性炭相结合的可行性。结果表明,在 2.0 mg/L 氯和紫外线处理 30 分钟后,1 μmol/L AMT 的去除率可达 98.5%。与单独使用紫外线、单独使用氯和其他氧化剂合用相比,AMT 的去除率明显提高了 10%-45%,尤其是 SOUR(比氧吸收率),与其他氧化剂合用相比提高了 57%-90%。其次,紫外线/氯-BAC 处理轻微污染饮用水的最佳工艺参数是紫外线照射、氯用量为 2 毫克/升、反应时间为 15 分钟,然后进行 30 分钟的 BAC 处理。AMT降解率、CODMn去除率和NO3--N产生率分别为88%、65%和95%。对 BAC 培养基中的微生物数量没有明显影响,确保了良好的长期运行。此外,还进行了一项调查,以评估最佳工艺操作对 BAC 内微生物群落结构的影响。这项分析揭示了在实施理想工艺参数后,菌落结构中的正反馈循环。这项研究为利用传统饮用水处理工艺解决残留抗抑郁剂问题提供了重要启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Frontiers of Environmental Science & Engineering
Frontiers of Environmental Science & Engineering ENGINEERING, ENVIRONMENTAL-ENVIRONMENTAL SCIENCES
CiteScore
10.90
自引率
12.50%
发文量
988
审稿时长
6.1 months
期刊介绍: Frontiers of Environmental Science & Engineering (FESE) is an international journal for researchers interested in a wide range of environmental disciplines. The journal''s aim is to advance and disseminate knowledge in all main branches of environmental science & engineering. The journal emphasizes papers in developing fields, as well as papers showing the interaction between environmental disciplines and other disciplines. FESE is a bi-monthly journal. Its peer-reviewed contents consist of a broad blend of reviews, research papers, policy analyses, short communications, and opinions. Nonscheduled “special issue” and "hot topic", including a review article followed by a couple of related research articles, are organized to publish novel contributions and breaking results on all aspects of environmental field.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信