Investigating the influence of sulphur amendment and temperature on microbial activity in bioremediation of diesel-contaminated soil

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dc.contributor.authorDelanau, Clara
dc.contributor.authorAspray, Thomas
dc.contributor.authorPawlett, Mark
dc.contributor.authorCoulon, Frederic
dc.date.accessioned2024-05-02T13:18:40Z
dc.date.available2024-05-02T13:18:40Z
dc.date.freetoread2024-05-02
dc.date.issued2024-05-15
dc.date.pubOnline2024-04-26
dc.description.abstractThis study investigated the effectiveness of incorporating sulphur (S) with nitrogen (N) and phosphorus (P) for enhancing microbial activity in diesel-contaminated soil during ex-situ bioremediation. While N and P amendments are commonly used to stimulate indigenous microorganisms, the potential benefits of adding S have received less attention. The study found that historically contaminated soil with a moderate concentration of total petroleum hydrocarbons (TPH; 1270 mg/kg) did not have nutrient limitation, and incubation temperature was found to be more critical for enhancing microbial activity. However, soil spiked with an additional 5000 mg/kg of diesel showed increased activity following NP and NPS amendment. Interestingly, NPS amendment at 10 °C resulted in higher microbial activity than at 20 °C, indicating the potential for a tailored nutrient amendment approach to optimize bioremediation in cold conditions. Overall, this study suggests that incorporating S with N and P can enhance microbial activity in diesel-contaminated soil during ex-situ bioremediation. Furthermore, the study highlights the importance of considering incubation temperature in designing a nutrient amendment approach for bioremediation, especially in cold conditions. These findings can guide the design and implementation of future effective bioremediation strategies for petroleum hydrocarbon-contaminated soil.en_UK
dc.description.journalNameHeliyon
dc.description.sponsorshipThe authors thank ERS and the BBSRC NIBB's Environmental Biotechnology Network, (EBNET, grant reference BB/S009795/1) for funding this research project.en_UK
dc.identifier.citationDelanau C, Aspray T, Pawlett M, Coulon F. (2024) Exploring the influence of sulphur amendment and temperature on microbial activity in bioremediation of diesel-contaminated soil. Heliyon. Volume 10, Issue 9, May 2024, Article number e30235en_UK
dc.identifier.issn2405-8440
dc.identifier.issueNo9
dc.identifier.paperNoe30235
dc.identifier.urihttps://doi.org/10.1016/j.heliyon.2024.e30235
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21310
dc.identifier.volumeNo10
dc.language.isoen_UKen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSoil bioremediationen_UK
dc.subjectRespirometryen_UK
dc.subjectCO2 accumulationen_UK
dc.subjectSulphur amendmenten_UK
dc.subjectDiesel-contaminated soilen_UK
dc.titleInvestigating the influence of sulphur amendment and temperature on microbial activity in bioremediation of diesel-contaminated soilen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-04-22

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