Advective and diffusive gas phase transport in vadose zones: Importance for defining vapour risks and natural source zone depletion of petroleum hydrocarbons

Sookhak Lari, Kaveh; Davis, Greg B.; Rayner, John L.; Bastow, Trevor P.

doi:10.1016/j.watres.2024.121455

Water Research

2024

DOI: 10.1016/j.watres.2024.121455

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Advective and diffusive gas phase transport in vadose zones: Importance for defining vapour risks and natural source zone depletion of petroleum hydrocarbons

Kaveh Sookhak Lari,

Greg B. Davis,

John L. Rayner

et al.

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2024

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Cited by 5 publications

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Identification of carbon fixation microorganisms and pathways in an aquifer contaminated with long‐chain petroleum hydrocarbons

Gan,

Ning,

Wang

et al. 2024

Water Environment Research

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Petroleum hydrocarbons (PHCs) can be biodegraded into CO2, and PHC‐contaminated aquifers are always deemed as carbon sources. Fortunately, some carbon fixation microorganisms have been found in PHC‐contaminated sites. However, most of the studies are related to volatile short‐chain PHC, and few studies focus on long‐chain PHC‐contaminated sites. To reveal the carbon fixation microorganisms in these sites, in the study, a long‐chain PHC polluted site in North China was selected. Through hydrochemical and metagenomics analysis, the structure and capacity of carbon fixing microorganisms in the site were revealed. Results showed that there were many kinds of carbon fixed microorganisms that were identified such as Flavobacterium, Pseudomonas. HP/4HB, rTCA, and DC/4HB cycles were dominated carbon fixation pathways. The long‐chain PHC were weakly correlated with carbon fixation microorganisms, but it may stimulate the growth of some carbon fixation microorganisms, such as microorganisms involved in rTCA cycle.Practitioner Points The microorganisms with carbon fixation gene exist in the aquifer contaminated by long‐chain petroleum hydrocarbon. Microorganisms that have the ability to degrade petroleum also have the ability to carbon fixation. Long‐chain petroleum hydrocarbon may promote the growth of carbon fixation microorganisms.

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Identification of carbon fixation microorganisms and pathways in an aquifer contaminated with long‐chain petroleum hydrocarbons

Gan,

Ning,

Wang

et al. 2024

Water Environment Research

View full text Add to dashboard Cite

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Evaluation of multiphase transport of benzene in the unsaturated zone: interactions of volatilization and dissolution through experiments and modeling

Wang,

Bian,

Ruan

2024

Environ Earth Sci

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Impacts of LNAPL types on mechanisms and rate of natural source zone depletion

Guan,

Li,

et al. 2024

Environmental Pollution

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Advective and diffusive gas phase transport in vadose zones: Importance for defining vapour risks and natural source zone depletion of petroleum hydrocarbons

Cited by 5 publications

References 57 publications

Identification of carbon fixation microorganisms and pathways in an aquifer contaminated with long‐chain petroleum hydrocarbons

Identification of carbon fixation microorganisms and pathways in an aquifer contaminated with long‐chain petroleum hydrocarbons

Evaluation of multiphase transport of benzene in the unsaturated zone: interactions of volatilization and dissolution through experiments and modeling

Impacts of LNAPL types on mechanisms and rate of natural source zone depletion

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