Abstract
A study on the potentials of chicken drops in the remediation of petroleum contaminated agricultural soil was carried out. A total of 18 m2 farmland was divided into three sites of 4 m2 each with 2 m spaces in between them. Two out of the three sites were polluted with 40 dm3 of bonny light crude oil and remediated for 16 weeks. The results showed a total percentage degradation of 72.18 ± 0.56 and 59.21 ± 0.54 of aliphatic hydrocarbon, 37.92 ± 0.38 and 29.58 ± 0.36 of polycyclic aromatic hydrocarbon and 5.26 ± 0.22 and 0.50 ± 0.08 of heavy metals for bioaugmented and natural attenuated sites respectively. However, the highest percentage degradation for aliphatic hydrocarbon was 97.59 ± 0.95 for C24 of the bioaugmented site and 92.46 ± 0.72 for C26 of the natural attenuated site, while the highest degradation rate for polycyclic aromatic hydrocarbon was 100.00 ± 0.00 for Pyrene, Benzo(k)fluoranthene and Benzo(g,h,i)perylene of both the bioaugmented site and natural attenuated site. However, Chromium had the highest percentage degradation rate for the heavy metals with values of 11.95 ± 0.33 and 1.12 ± 0.25 for the bioaugmented and natural attenuated sites respectively.
Highlights
Since the rise of agriculture and forestry in the 8th millennium B.C., there has arisen by necessity a practical awareness of soils and their management
The results of this study showed great variation in the ability of chicken drops in the remediation of crude oil polluted soil
The increase in percentage remediation of both aliphatic and aromatic hydrocarbons observed in the bioaugmented site (Figure 1 and 2), may be attributed to the presence of aerobicheterotrophs, total fungi and species of crude oil degrading bacteria such as Micrococcus, Bacillus, Pseudomonas, Enterobacter, Proteus, Aspergillus, Rhizopus and Penicillium in the chicken drop [9]
Summary
The Potentials of Chicken Drops in the Remediation of Petroleum Contaminated Agricultural Soil.
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