Bioremediation of a crude-oil polluted agricultural-soil at Port Harcourt, Nigeria

M. J. Ayotamuno, Reginald Kogbara, S. O T Ogaji, S. D. Probert

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

A combination of treatments, consisting of the application of fertilizers and oxygen exposure, was evaluated in situ during a period of six weeks. Conditions of a major spill were simulated by sprinkling crude-oil on experimental cells containing agricultural soil. The remedial treatments were then applied and the soil characteristics analyzed after set periods. Soil physicochemical parameters, such as moisture content, pH value, electrical conductivity as well as organic-carbon and total-nitrogen contents, showed distinct variations with time. The total heterotrophic-bacteria (THB) count in all the treatment cells increased with time. The control cell, O (which was not treated) indicated no signs of remediation within the study period. The hydrocarbon losses (50-95%) experienced in the five other treatment-cells revealed the effectiveness in degrading the hydrocarbon contaminant. The results of this study indicate that the application of increased concentrations of nutrients (by the application of fertilizers) lead to greater rates of biodegradation of petroleum-polluted agricultural soils.

Original languageEnglish
Pages (from-to)1249-1257
Number of pages9
JournalApplied Energy
Volume83
Issue number11
DOIs
Publication statusPublished - Nov 2006
Externally publishedYes

Fingerprint

Bioremediation
agricultural soil
bioremediation
crude oil
Crude oil
fertilizer
hydrocarbon
Soils
Fertilizers
electrical conductivity
biodegradation
moisture content
remediation
soil
Hydrocarbons
organic carbon
petroleum
oxygen
bacterium
pollutant

Keywords

  • Biodegradation
  • Fertilizers
  • Petroleum pollution
  • Soil's physicochemical characteristics

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering

Cite this

Bioremediation of a crude-oil polluted agricultural-soil at Port Harcourt, Nigeria. / Ayotamuno, M. J.; Kogbara, Reginald; Ogaji, S. O T; Probert, S. D.

In: Applied Energy, Vol. 83, No. 11, 11.2006, p. 1249-1257.

Research output: Contribution to journalArticle

Ayotamuno, M. J. ; Kogbara, Reginald ; Ogaji, S. O T ; Probert, S. D. / Bioremediation of a crude-oil polluted agricultural-soil at Port Harcourt, Nigeria. In: Applied Energy. 2006 ; Vol. 83, No. 11. pp. 1249-1257.
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