African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Impact analysis of palm oil mill effluent on the aerobic bacterial density and ammonium oxidizers in a dumpsite in Anyigba, Kogi State

Okwute, Ojonoma Loretta1* and Isu, NR2
  1Department of Microbiology, Kogi State University, P.M.B. 1008 Anyigba, Kogi State, Nigeria. 2Department of Biological Sciences, University of Abuja, Abuja, Nigeria.
Email: [email protected]

  •  Accepted: 14 November 2006
  •  Published: 18 January 2007

Abstract

 

The effects of palm oil mill effluent (POME) on the total aerobic bacterial populations and ammonium oxidizers in the soil were assessed. This was done by culturing soil samples from an effluent dumpsite for the total aerobic bacterial counts and ammonium oxidizers. Results showed that the total aerobic bacterial populations in the POME soil samples (9.6 x 108 ± 0.3 at 20oC, 1.64 x 109 ± 0.2 at 30oC and 1.07 x 109 ± 0.4 at 40oC) were significantly higher (P ≤ 0.05) than the counts for the non-POME soil samples (4.5 x 108 ± 0.3 at 20oC, 7.6 x 108 ± 0.3 at 30oC and 5.9 x 108 ± 0.3 at 40oC). In addition, ammonium oxidizers were isolated from the non-POME soil samples but not from the POME soil samples.

 

Key words: Palm oil mill effluent, total aerobic bacteria, ammonium oxidizers.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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