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Research Article

Biotreatment of Un-/Pre-treatment Simulated Produced Water (SPW) Using Chlorella vulgaris

Authors

  • Hameed Opeyemi Ottun Department of Chemistry, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
  • Daniel Ayodele Idowu Department of Chemistry, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria https://orcid.org/0009-0008-3286-0976

    idowudaniel284@gmail.com

  • Babajide Joseph Adisa Department of Chemistry, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
  • Fortune Itoje Ebiala Department of Microbiology, University of Benin, Benin, Edo State, Nigeria https://orcid.org/0000-0002-3855-1188
  • Yusuf Yusuf Arowosaye Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea https://orcid.org/0000-0003-2195-6039
  • Cornelia Gordian Inoh Department of Environmental Health, Metaspec Consult Limited, Portharcourt, River State, Nigeria https://orcid.org/0009-0001-3677-621X
  • Benjamin Madji Larweh Department of Biological Sciences, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development, Kumasi, Ghana https://orcid.org/0009-0002-4714-2519

Abstract

There have been increasing environmental concerns surrounding industrial wastewater especially from oil and gas industries, which call for the need for sustainable and effective treatment strategies. This study aims to investigate the biotreatment of Chlorella vulgaris for simulated produced water (SPW), looking at both untreated and pretreated water. This research used a laboratory bioreactor system where Chlorella vulgaris was nurtured and then introduced into SPW and 3,5-dimethylphenol (DMP) based produced water. Fenton oxidation was performed on the pretreatment of SPW to assess the effects with algal treatment. The parameters like pH, chemical oxygen demand (COD), volatile organic acids (VOAs), and UV-Visible spectrometer were observed for five weeks to evaluate treatment efficiency. The results obtained showed that Chlorella vulgaris developed substantial growth and adaptability in various treatments with notable changes occurring in colour, pH, and biomass. COD levels were significantly reduced across all treated samples, particularly in TSPW (884 to 315.5 mg/L) and SPW (2224.5 to 199.25 mg/L), which demonstrated strong pollutant removal capacity. The levels in VOA dropped to non-detectable limits in the TSPW CV sample, and it showed a major reduction in other treatments. UV spectrometry revealed changes in absorbance patterns at 272 nm and 687 nm, indicating organic matter transformation and algal activity. In conclusion, Chlorella vulgaris revealed it can be effectively used in the biotreatment of simulated produced water with commendable results obtained.

Keywords:

Biotreatment Bioreactor Chlorella vulgaris Industrial Wastewater Simulated Produced Water (SPW)

Article information

Journal

Journal of Medical Science, Biology, and Chemistry

Volume (Issue)

2(2), (2025)

Pages

110-116

Published

29-08-2025

How to Cite

Ottun, H. O., Idowu, D. A., Adisa, B. J., Ebiala, F. I., Arowosaye, Y. Y., Inoh, C. G., & Larweh, B. M. (2025). Biotreatment of Un-/Pre-treatment Simulated Produced Water (SPW) Using Chlorella vulgaris. Journal of Medical Science, Biology, and Chemistry, 2(2), 110-116. https://doi.org/10.69739/jmsbc.v2i2.860

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