新型厌氧折流板生物膜-膜生物反应器与UV/O3集成系统对建筑废水中药物的强化去除：微生物群落、生物中间体的发生及后处理

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management Pub Date : 2025-02-25 DOI:10.1016/j.jenvman.2025.124657

Tanissorn Buakaew , Chavalit Ratanatamskul

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引用次数: 0

摘要

本研究旨在开发厌氧折流板生物膜-膜生物反应器（ancb - mbr）（带和不带微曝气）和UV/O3集成系统，用于去除建筑废水中的目标药物（环丙沙星（CIP）、咖啡因（CAF）、磺胺甲恶唑（SMX）和双氯芬酸（DCF））。研究了微曝气对AnBB-MBR生物中间体的去除性能、降解动力学和降解途径的影响。两个AnBB-MBR反应器R1: AnBB-MBR（无微曝气）和R2: AnBB-MBR（微曝气0.93 LO2/LFeed）在相同的水力停留时间（HRT）为30 h的条件下运行。后处理系统选择UV/O3。而单独紫外线对CIP的去除作用较小，对其他化合物没有去除作用。UV/O3作用150 min后，具有UV/O3的R1对靶向药物的去除率达到97.31-100%，而与UV/O3集成的R2对靶向药物的去除率提高到99.47-100%。得到了UV/O3处理R1渗透物的准一级动力学速率常数，分别为0.0235、0.004、0.0423和0.097 min−1。而得到的UV/O3处理R2渗透物的准一级动力学速率常数分别为0.021、0.0338、0.0511和0.0527 min−1。在微氧条件下，参与R2中靶向药物去除的微生物主要有氨氧化菌（AOB）和甲烷氧化菌，而在厌氧条件下，参与R1中药物去除的可能有芽孢杆菌、Longilinea、Clostridium和lactibrio。对厌氧和微氧条件下生物中间体的差异进行了专门鉴定。此外，与无微曝气的集成系统相比，微曝气和UV/O3集成系统对多种生物中间体的去除效果更好。因此，微曝气与UV/O3相结合的anbr - mbr系统是一种很有前途的去除建筑废水中药物的技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhanced pharmaceutical removal from building wastewater by the novel integrated system of anaerobic baffled biofilm-membrane bioreactor and UV/O3: Microbial community, occurrence of bio-intermediates and post-treatment

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This research aimed to develop the novel integrated system of anaerobic baffled biofilm-membrane bioreactor (AnBB-MBR) (with and without microaeration) and UV/O₃ for removal of target pharmaceuticals (ciprofloxacin (CIP), caffeine (CAF), sulfamethoxazole (SMX) and diclofenac (DCF)) from building wastewater. The investigation was performed to elucidate how microaeration affected the removal performances, degradation kinetics and pathways of bio-intermediates of the AnBB-MBR. Two AnBB-MBR reactors - R1: AnBB-MBR (without microaeration) and R2: AnBB-MBR with microaeration at 0.93 L_O2/L_Feed - were operated at the same hydraulic retention time (HRT) of 30 h. The UV/O₃ was selected as the post-treatment system. While UV alone slightly removed CIP without the removal of other compounds. After 150 min of the UV/O₃, the R1 with UV/O₃ achieved 97.31–100% removal efficiency of targeted pharmaceuticals and increased to 99.47–100% with the R2 integrated with UV/O₃. The obtained pseudo-first order kinetic rate constants of the UV/O₃ in treating the permeate of R1 were 0.0235, 0.004, 0.0423 and 0.097 min⁻¹ for CIP, CAF, SMX and DCF, respectively. Whereas the obtained pseudo-first order kinetic rate constants of the UV/O₃ in treating the permeate of R2 were 0.021, 0.0338, 0.0511 and 0.0527 min⁻¹ for CIP, CAF, SMX and DCF, respectively. For the major microorganisms involved in targeted pharmaceutical removal in the R2 under microaerobic conditions included ammonia oxidizing bacteria (AOB) and methanotrophs, while Bacillus, Longilinea, Clostridium and Lactivibrio were possibly responsible for pharmaceutical removal in the R1 under anaerobic conditions. The differences of bio-intermediates between anaerobic and microaerobic conditions were exclusively identified. In addition, the integration of AnBB-MBR with microaeration and UV/O₃ was more effective in removing a wide variety of bio-intermediates than the case of the integrated system without microaeration. Therefore, the integrated system of AnBB-MBR with microaeration and UV/O₃ can be a promising technology for pharmaceutical removal from building wastewater.

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来源期刊

Journal of Environmental Management 环境科学-环境科学

CiteScore

13.70

自引率

5.70%

发文量

2477

审稿时长

84 days

期刊介绍： The Journal of Environmental Management is a journal for the publication of peer reviewed, original research for all aspects of management and the managed use of the environment, both natural and man-made.Critical review articles are also welcome; submission of these is strongly encouraged.