Biokinetic Study of Microbial Decontamination of Oilfield Produced Water

Nwokoma Darlington B (), Dagde Kenneth K (), Akpa Jackson G () and Ehirim Emmanuel ()

International Journal of Chemical and Process Engineering Research, 2022, vol. 9, issue 1, 11-20

Abstract: This work was aimed at identifying microbials and determining the biokinetic parameters for bio-decontamination of oilfield produced water. An extant physical treatment unit for produced water was re-engineered and retrofit with a discontinuous aerobic bioreactor (Bio-Unit) system. The Bio-Unit was operated in a fill-and-draw sequence and the rates of total organic carbon (TOC) removal and biomass growth were monitored. The isolated microbial strains were identified as Bacillus, Pseudomonas and Chryseobacterium spp. The biokinetic parameters of the bio-detoxification process were determined by fitting experimental data into the Monod Equation. The maximum specific substrate utilization rate (k_m), maximum specific growth rate (μ(m,h )), substrate half saturation coefficient (K(STOC )), yield (Y), and endogenous decay rate (b_h), were found to be 0.20 day-1, 0.31 day-1, 2.7 mg TOC/l, 1.6 mg MLSS/mg TOC, and 0.23 day-1, respectively. These values are within the range published in literatures for oilfield produced water, thus will suffice for designing, modeling and control of biological treatment systems, since biokinetic parameters for real oilfield produced water treatment using discontinuous biological configuration is scanty.

Keywords: Oilfield produced water; Aerobic bio-unit; Microbial consortium; Total organic carbon; Biosolids retention time biokinetics. (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
https://archive.conscientiabeam.com/index.php/65/article/view/3129/6921 (application/pdf)
https://archive.conscientiabeam.com/index.php/65/article/view/3129/7038 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:pkp:ijcper:v:9:y:2022:i:1:p:11-20:id:3129

Access Statistics for this article

More articles in International Journal of Chemical and Process Engineering Research from Conscientia Beam
Bibliographic data for series maintained by Dim Michael ().