ORIGINAL RESEARCH
Bioremediation of Crude Oil-Polluted Soil Using
Bacteria and Poultry Manure Monitored
through Soybean Productivity
Alfreda O. Nwadinigwe, Ekene G. Onyeidu
More details
Hide details
Department of Botany, University of Nigeria, Nsukka, Enugu State, Nigeria
Pol. J. Environ. Stud. 2012;21(1):171-176
KEYWORDS
ABSTRACT
Bioremediation of crude oil-contaminated soil was carried out using endogenous oil-degrading bacteria
isolated from deliberately polluted soil and poultry manure. Isolates were subjected to morphological, physiological
and biochemical tests and identified as Pseudomonas sp. and Bacillus sp. The results showed that the
control (without crude oil treatment) significantly (P<0.01) produced the most pronounced result in germination,
growth and productivity of the soybean plants used for monitoring bioremediation efficacy. This was followed
by the consortium, Pseudomonas, Bacillus, nutrient broth, poultry manure, and crude oil (P<0.01 significance).
This indicates that bioaugmentation with bacteria and biostimulation with poultry manure were
remediative to crude oil-polluted soil, with bioaugmentation performing better than biostimulation.