Antibiotics removal and antimicrobial resistance control by ozone/peroxymonosulfate-biological activated carbon: A novel treatment process

IF 11.4 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Water Research Pub Date : 2024-07-09 DOI:10.1016/j.watres.2024.122069

Xin Yang Zhang , Tai Shan Liu , Jiang Yong Hu

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Abstract

Biological activated carbon (BAC) is one of the important treatment processes in wastewater and advanced water treatment. However, the BAC process has been reported to have antimicrobial resistance (AMR) risks. In this study, a new BAC-related treatment process was developed to reduce AMR caused by BAC treatment: ozone/peroxymonosulfate-BAC (O₃/PMS-BAC). The O₃/PMS-BAC showed better treatment performance on the targeted five antibiotics and dissolved organic matter removal than O₃-BAC and BAC treatments. The O₃/PMS-BAC process had better control over the AMR than the O₃-BAC and BAC processes. Specifically, the amount of targeted antibiotic-resistant bacteria in the effluent and biofilm of O₃/PMS-BAC was only 0.01–0.03 and 0.11–0.26 times that of the BAC process, respectively. Additionally, the O₃/PMS-BAC process removed 1.76 %–62.83 % and 38.14 %–99.27 % more of the targeted ARGs in the effluent and biofilm than the BAC process. The total relative abundance of the targeted 12 ARGs in the O₃/PMS-BAC effluent was decreased by 86 % compared to the effluent after BAC treatment. In addition, Proteobacteria and Bacteroidetes were probably the main hosts for transmitting ARGs in this study, and their relative abundance decreased by 9.6 % and 6.0 % in the effluent of the O₃/PMS-BAC treatment compared to that in BAC treatment. The relationship analysis revealed that controlling antibiotic discharge was crucial for managing AMR, as antibiotics were closely related to both ARGs and bacteria associated with their emergence. The results showed that the newly developed treatment process could reduce AMR caused by BAC treatment while ensuring effluent quality. Therefore, O₃/PMS-BAC is a promising alternative to BAC treatment for future applications.

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利用臭氧/过氧单硫酸盐生物活性炭去除抗生素并控制抗生素耐药性：一种新型处理工艺

生物活性碳（BAC）是废水和先进水处理的重要处理工艺之一。然而，有报道称生物活性炭工艺存在抗菌剂耐药性（AMR）风险。本研究开发了一种与 BAC 相关的新处理工艺：臭氧/过氧单硫酸盐-BAC（O3/PMS-BAC），以减少 BAC 处理引起的 AMR。与 O3-BAC 和 BAC 处理相比，O3/PMS-BAC 在目标五种抗生素和溶解有机物去除方面表现出更好的处理性能。与 O3-BAC 和 BAC 工艺相比，O3/PMS-BAC 工艺对 AMR 的控制更好。具体来说，O3/PMS-BAC 工艺出水和生物膜中的目标抗生素耐药菌数量分别仅为 BAC 工艺的 0.01-0.03 倍和 0.11-0.26 倍。此外，与 BAC 工艺相比，O3/PMS-BAC 工艺去除出水和生物膜中目标 ARG 的比例分别高出 1.76 %-62.83 % 和 38.14 %-99.27 %。与 BAC 处理后的出水相比，O3/PMS-BAC 出水中 12 种目标 ARGs 的总相对丰度降低了 86%。此外，变形菌和类杆菌可能是本研究中传播 ARGs 的主要宿主，与 BAC 处理相比，它们在 O3/PMS-BAC 处理出水中的相对丰度分别下降了 9.6% 和 6.0%。关系分析表明，由于抗生素与 ARGs 及其相关细菌密切相关，因此控制抗生素的排放对于管理 AMR 至关重要。结果表明，新开发的处理工艺既能减少 BAC 处理造成的 AMR，又能确保出水水质。因此，在未来的应用中，O3/PMS-BAC 有望成为 BAC 处理的替代方案。

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来源期刊

Water Research 环境科学-工程：环境

CiteScore

20.80

自引率

9.40%

发文量

1307

审稿时长

38 days

期刊介绍： Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include: •Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management; •Urban hydrology including sewer systems, stormwater management, and green infrastructure; •Drinking water treatment and distribution; •Potable and non-potable water reuse; •Sanitation, public health, and risk assessment; •Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions; •Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment; •Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution; •Environmental restoration, linked to surface water, groundwater and groundwater remediation; •Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts; •Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle; •Socio-economic, policy, and regulations studies.