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Biofilms of anammox bacteria on mineral carriers to establish a subterranean permeable barrier

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Abstract

The possible application of vermiculite, zeolite, expanded clay, and various clays to establish a biogeochemical barrier in ammonium- and nitrate-contaminated groundwater using an anammox bacterial community predominated by "Candidatus Jettenia ecosi" was studied. Anammox bacteria were shown to form active biofilms on most of the studied materials for permeable and impermeable barriers, which provide for high rates of ammonium nitrogen consumption. Biofilm formation was affected by the morphology and mineral composition of the tested materials and by their ability to deposit ammonium ions, thus decreasing the nitrogen load. The highest areas of anammox bacterial biofilms were observed on kaolin clays, zeolite, and expanded clay. These results may be used to predict the course of the anammox process in aquifers based on the data on the mineral analysis of the country rocks and for the selection of the optimal materials for a permeable biogeochemical barrier.

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Acknowledgments

The authors wish to thank all who assisted in conducting this work.

Funding

A.V.—support from The Ministry of Science and Higher Education of the Russian Federation (state assignments AAAA-A19-119022690093-8) The work of A. Vishnyakova and Yu. Litti was supported by the Ministry of Science and Higher education of the Russian Federation.

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Authors and Affiliations

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Contributions

Experimental design, and conceptualization Al.S and Y.L.; materials preparation and characterisation G.A. and An.S..; bacterial cultivation, A.V., N.P. and Y.L; metabolism analysis A.V., and Y.L, biofilms analysis., N.P data processing A.V., N.P. and Y.L; original draft preparation, Al.S and Y.L.; review and editing, all authors; all authors have read and approved the final version of the manuscript.

Corresponding author

Correspondence to A. Safonov.

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The authors declare no conflict of interest.

Data Availability

All data generated or analyzed during this study are included in this published article (and its supplementary information files).

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Informed consent was obtained from all individual participants included in the study.

Human or animal rights

The authors affirm that no human or animal research was made in this study.

Additional information

Editorial responsibility: Samareh Mirkia.

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Supplementary file1 (DOCX 371 KB)

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Popova, N., Vishnyakova, A., Artemiev, G. et al. Biofilms of anammox bacteria on mineral carriers to establish a subterranean permeable barrier. Int. J. Environ. Sci. Technol. 20, 2159–2170 (2023). https://doi.org/10.1007/s13762-022-04131-w

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  • DOI: https://doi.org/10.1007/s13762-022-04131-w

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