Performance of nitrogen-fixing bacteria and fungi by water-lifting aerator in drinking water reservoir: Dynamics and co-existence patterns

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2025-03-05 DOI:10.1016/j.psep.2025.106984

Tao Liu , Jianghao Zhang , Ziying Zhao , Kaiwen Liu , Xiang Liu , Xiaoyan Liu , Ben Ma , Honghong Guo , Tinglin Huang , Haihan Zhang

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引用次数: 0

Abstract

Fungi and nitrogen-fixing bacteria play an important role in the conversion of carbon and nitrogen in various environments, but the knowledge gaps regarding their interactions in deep drinking water reservoirs within the water-lifting aerator (WLA) system are still uncleared. The objective of this study was to research the destiny of co-existence patterns between nitrogen-fixing bacteria and fungi. The microbial community structures illustrated obviously spatiotemporal distribution, and the dominant of nitrogen-fixing bacteria in the phylum were Cyanobacteria and Proteobacteria, the fungi were Chytridiomycota and Ascomycota. Mantel test illustrated that the nitrogen-fixing bacteria were strongly correlated with nitrate nitrogen and oxidation-reduction potential, while fungi were related with ammonia nitrogen. The partial least squares path modeling further revealed that nutrients (1.37) significantly influenced the nitrogen-fixing bacteria, meanwhile, the largest stimulation of fungi was physicochemical factors (0.67). The operation of WLA improved the stability of microbial ecosystem and cross-feeding capacity. Furthermore, the investigation could provide a comprehensive understanding of interactions between nitrogen-fixing bacteria, fungi and their potential drivers in drinking water reservoirs during the operation of WLA.

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.