Enhancing naphthenic acid attenuation in mesocosm wetlands: The role of temperature, plant species, and microbial communities DOI Creative Commons
Kaitlyn E. Trepanier, Amy‐lynne Balaberda, Ian J. Vander Meulen

et al.

Water Environment Research, Journal Year: 2025, Volume and Issue: 97(3)

Published: Feb. 27, 2025

Abstract Oil sands process‐affected water (OSPW) is a by‐product of bitumen extraction from oil surface mining in Alberta, Canada. A major group organics OSPW known as naphthenic acid fraction compounds (NAFCs) are concern due to their persistence and toxicity. Constructed wetland treatment systems have emerged potential biological approaches for reducing NAFC concentrations within OSPW. In this study, greenhouse‐scale mesocosms simulating constructed consisting coarse sand tailings (CST) were used evaluate the ability Scirpus microcarpus , Triglochin maritima unplanted controls attenuate NAFCs under spring/fall summer temperatures (10°C/5°C 20°C/10°C day/night). Overall, mesocosm system, attenuation was similar regardless different design parameters such plant type, presence, temperature. By end 30% 50% lower than initial depending on species, The relative abundance acutely toxic O 2 ‐NAFCs decreased over time, with an increase less 3 4 SO classes. Various hydrocarbon‐degrading microbial families Comamonadaceae Xanthobacteraceae found be dominant OSPW, while cyanobacteria ( Trichormus ) enriched CST. Principal component analysis indicated that only time led distinct clusters composition, temperature, influenced communities. Shifts communities corresponded shifts NAFCs, possibly decrease toxicity increased oxidation and/or available nutrients fitness planted mesocosms. Practitioner Points comparing three planted/unplanted conditions two temperatures. Mesocosms had 30%–50% removal total composition shifted by time. Lack difference between treatments could indicate high level functional redundancy

Language: Английский

Enhancing naphthenic acid attenuation in mesocosm wetlands: The role of temperature, plant species, and microbial communities DOI Creative Commons
Kaitlyn E. Trepanier, Amy‐lynne Balaberda, Ian J. Vander Meulen

et al.

Water Environment Research, Journal Year: 2025, Volume and Issue: 97(3)

Published: Feb. 27, 2025

Abstract Oil sands process‐affected water (OSPW) is a by‐product of bitumen extraction from oil surface mining in Alberta, Canada. A major group organics OSPW known as naphthenic acid fraction compounds (NAFCs) are concern due to their persistence and toxicity. Constructed wetland treatment systems have emerged potential biological approaches for reducing NAFC concentrations within OSPW. In this study, greenhouse‐scale mesocosms simulating constructed consisting coarse sand tailings (CST) were used evaluate the ability Scirpus microcarpus , Triglochin maritima unplanted controls attenuate NAFCs under spring/fall summer temperatures (10°C/5°C 20°C/10°C day/night). Overall, mesocosm system, attenuation was similar regardless different design parameters such plant type, presence, temperature. By end 30% 50% lower than initial depending on species, The relative abundance acutely toxic O 2 ‐NAFCs decreased over time, with an increase less 3 4 SO classes. Various hydrocarbon‐degrading microbial families Comamonadaceae Xanthobacteraceae found be dominant OSPW, while cyanobacteria ( Trichormus ) enriched CST. Principal component analysis indicated that only time led distinct clusters composition, temperature, influenced communities. Shifts communities corresponded shifts NAFCs, possibly decrease toxicity increased oxidation and/or available nutrients fitness planted mesocosms. Practitioner Points comparing three planted/unplanted conditions two temperatures. Mesocosms had 30%–50% removal total composition shifted by time. Lack difference between treatments could indicate high level functional redundancy

Language: Английский

Citations

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