Effect of competition between petroleum-degrading bacteria and indigenous compost microorganisms on the efficiency of petroleum sludge bioremediation: field application of mineral-based culture in the composting process

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dc.contributor.authorAbtahi, Hamid
dc.contributor.authorParhamfar, Milad
dc.contributor.authorSaeedi, Reza
dc.contributor.authorVillaseñor, José
dc.contributor.authorSartaj, Majid
dc.contributor.authorKumar, Vinod
dc.contributor.authorCoulon, Frederic
dc.contributor.authorParhamfar, Maryam
dc.contributor.authorDidehdar, Mojtaba
dc.contributor.authorSeifi, Hamed
dc.contributor.authorKoolivand, Ali
dc.date.accessioned2020-01-09T14:58:56Z
dc.date.available2020-01-09T14:58:56Z
dc.date.issued2020-01-06
dc.description.abstractThe effect of competition between isolated petroleum-degrading bacteria (PDB) and indigenous compost microorganisms (ICM) on the efficiency of composting process in bioremediation of petroleum waste sludge (PWS) was investigated. After isolating two native PDB (Acinetobacter radioresistens strain KA5 and Enterobacter hormaechei strain KA6) from PWS, their ability for growth and crude oil degradation was examined in the mineral-based culture (MBC). Then, the PDB isolate were inoculated into the composting experiments and operated for 12 weeks. The results showed that the PDB degraded 21.65–68.73% of crude oil (1–5%) in the MBC after 7 days. The PDB removed 84.30% of total petroleum hydrocarbon (TPHs) in the composting bioreactor containing the initial TPH level of 20 g kg−1. Removal of petroleum hydrocarbons (PHCs) in the composting experiments proceeded according to the first-order kinetics. The computed values of degradation rate constants and half-lives showed a better performance of the PDB than ICM for TPHs removal. This finding suggests that simultaneous application of the PDB and ICM in the composting reactors resulted in a decline in the effectiveness of the PDB which is due to competition between them. The study also verified that the capability of PDB in degrading PHCs can be successfully scaled-up from MBC to composting process.en_UK
dc.identifier.citationAbtahi H, Parhamfar M, Saeedi R, et al., (2020) Effect of competition between petroleum-degrading bacteria and indigenous compost microorganisms on the efficiency of petroleum sludge bioremediation: field application of mineral-based culture in the composting process. Journal of Environmental Management, Volume 258, March 2020, Article number 110013en_UK
dc.identifier.issn0301-4797
dc.identifier.urihttps://doi.org/10.1016/j.jenvman.2019.110013
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14901
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectPetroleum waste sludgeen_UK
dc.subjectPetroleum-degrading bacteriaen_UK
dc.subjectIndigenous compost microorganismsen_UK
dc.subjectBioremediationen_UK
dc.titleEffect of competition between petroleum-degrading bacteria and indigenous compost microorganisms on the efficiency of petroleum sludge bioremediation: field application of mineral-based culture in the composting processen_UK
dc.typeArticleen_UK

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