Biodegradation of heavy oily sludge by a two-step inoculation composting process using synergistic effect of indigenous isolated bacteria

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dc.contributor.authorParhamfar, Maryam
dc.contributor.authorAbtahi, Hamid
dc.contributor.authorGodini, Kazem
dc.contributor.authorSaeedi, Reza
dc.contributor.authorSartaj, Majid
dc.contributor.authorVillaseñor, José
dc.contributor.authorCoulon, Frederic
dc.contributor.authorKumar, Vinod
dc.contributor.authorSoltanighias, Tayebeh
dc.contributor.authorGhaznavi-Rad, Ehsanollah
dc.contributor.authorKoolivand, Ali
dc.date.accessioned2020-04-29T12:01:21Z
dc.date.available2020-04-29T12:01:21Z
dc.date.issued2019-12-24
dc.description.abstractThe impact of two-step inoculation of indigenous strains and their synergistic effect in the scaling-up of petroleum hydrocarbons biodegradation from a mineral-based medium (MBM) to a two-phase composting process were investigated. After isolating the strains KA3 and KA4 from heavy oily sludge (HOS), their emulsification index (E24), bacterial adhesion to hydrocarbon (BATH), and oil degradation efficiency were evaluated in the MBM. Then, they were inoculated twice into the composting bioreactors lasted for the primary 8 weeks as the first phase (FP) and subsequent 8 weeks as the second phase (SP). The results indicated that the consortium of the two strains degraded 16-61% of crude oil (1-5% concentration) in the MBM. In the composting reactors, removals of 20 g kg−1 initial concentration of total petroleum hydrocarbons (TPH) were found to be 63.95, 61.00, and 89.35% for the strains KA3, KA4, and their consortium, respectively. The computed biodegradation constants indicated the synergistic effect of the two strains and the effectiveness of the second-step inoculation. The study demonstrated the successful scaling-up of HOS biodegradation from MBM to the two-phase composting process through two-step inoculation of the isolated strains.en_UK
dc.identifier.citationParhamfar M, Abtahi H, Godini K, et al., (2020) Biodegradation of heavy oily sludge by a two-step inoculation composting process using synergistic effect of indigenous isolated bacteria. Process Biochemistry, Volume 91, April 2020, pp. 223-230en_UK
dc.identifier.issn0032-9592
dc.identifier.urihttps://doi.org/10.1016/j.procbio.2019.12.014
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15418
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.subjectBiodegradation scale-upen_UK
dc.subjectHeavy oily sludgeen_UK
dc.subjectTwo-step inoculationen_UK
dc.subjectComposting processen_UK
dc.subjectSynergistic effecten_UK
dc.titleBiodegradation of heavy oily sludge by a two-step inoculation composting process using synergistic effect of indigenous isolated bacteriaen_UK
dc.typeArticleen_UK

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