Acta Scientific Microbiology (ISSN: 2581-3226)

Research Article Volume 5 Issue 9

Effect of Season on the Microbial Quality of Oilfield Wastewater and Receiving Pond

Aleruchi Owhonka*

Department of Microbiology, Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Nigeria

*Corresponding Author: Aleruchi Owhonka, Department of Microbiology, Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Nigeria.

Received: July 07, 2022; Published: August 09, 2022

Abstract

The effect of season on the microbial quality of oilfield wastewater and the effluent receiving pond was investigated.  Oilfield wastewater and the recipient pond samples were collected from the Ogbogu flow station, Rivers State, Nigeria for one year. The total heterotrophic bacteria, total heterotrophic fungi, hydrocarbon utilizing bacteria, and fungi of the samples were evaluated using standard microbiological methods. The mean range of the total heterotrophic bacterial, hydrocarbon utilizing bacterial, total heterotrophic fungal, and hydrocarbon utilizing fungal counts of the oilfield wastewater effluents was 1.29×108-1.98×108, 1.22×104-1.44×104, 1.5×104-1.8×104, and 1.3×103-2.8×103CFU/ml, respectively for the dry season and 3.1×107-3.6×107, 2.3×103-2.8×103, 1.5×104-1.6×104, and 1.2×103-1.5×103 CFU/ml, for the rainy season. The mean range of the total heterotrophic bacterial, hydrocarbon utilizing bacterial, total heterotrophic fungal, and hydrocarbon utilizing fungal counts of the pond effluents was 2.42×105-2.73×105, 2.01×105-2.11×105, 2.6×104-3.8×104, and 1.5×103-5.7×103 CFU/ml, respectively for dry season 4.6×104-5.0×104, 3.0×103-3.3×103, 1.5×104-2.8×104, and 1.4×103-1.6×103 CFU/ml, respectively for the rainy season. Bacillus sp, Aeromonas sp, Micrococcus sp, Staphylococcus sp, Chryseomonas sp, Proteus sp, Pseudomonas sp, Klebsiella sp, Actinomyces sp, Enterobacter sp, Rhodococcus sp, and E. coli were isolated in both samples. Aspergillus fumigatus, Aspergillus niger, Aspergillus flavus, Saccharomyces cerevisiae, Geotricum, Fusarium, and Penicillium sp were also isolated from both samples. The HUB, THF, and HUF of the Pond effluent were significantly higher (P ≤ 00.5) than values obtained for the oilfield wastewater effluent. The microbial population in the pond samples was influenced by the seasons and drier months were characterized by higher microbial populations. These organisms would be very useful for bioremediation.

Keywords: Seasonal Variation; Microbial Quality; Oilfield Wastewater; Recipient Pond

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Citation

Citation: Aleruchi Owhonka. “Effect of Season on the Microbial Quality of Oilfield Wastewater and Receiving Pond". Acta Scientific Microbiology 5.9 (2022): 80-86.

Copyright

Copyright: © 2022 Aleruchi Owhonka. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.




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