IIARD International Institute of Academic Research and Development

International Journal of Agriculture and Earth Science (IJAES )

E- ISSN 2489-0081
P- ISSN 2695-1894
VOL. 11 NO. 4 2025
DOI: 10.56201/ijaes.vol.11.no4.2025.pg29.41

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Bio-stimulatory Potential of Intestinal Waste of Cow on a Crude Oil Polluted Soil

Oriakpono, Iris O, Wemejiri Anwuri, Ukaulor, Victor C, and Oriakpono, Obemeata, E

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Abstract

The study was carried out to examine the biostimulatory effect of intestinal wastes of cows on the bioremediation on a crude oil contaminated soil. A completely randomized design was applied with four rates (0, 1, 2 and 7Kg) of intestinal waste of cow and (0, 1, 2 and 5L) of crude oil were applied to contaminate the soil per plot. The soil physico-chemical parameters analysed includes pH, Total Organic Content (TOC), Nitrogen (N), Carbon to Nitrogen ratio (C:N), Phosphorus (P), cation exchange capacity (CEC), total petroleum hydrocarbon (TPH) and poly aromatic hydrocarbon (PAH). The result for soil physio-chemical parameters revealed that the mean value of soil nitrogen, C:N, TOC, TPH and PAH increased in the 2 weeks after pollution while the level reduced significantly (p< 0.05) at 4 weeks after bioremediation. The mean value of CEC, soil conductivity and soil phosphorus decreased in the 2 weeks after pollution when compared to the pre-exposed soil while the level increased significantly (p< 0.05) at 4 weeks after bioremediation. This research has proven that using intestinal waste of cow which is an animal waste that is generated in abattoirs has a strong bio-stimulatory properties and is effective in bio-remediation, therefore should be adopted in the restoration of crude oil polluted soil.

keywords:

Biostimulation, Intestinal Waste, Cow waste, Crude oil and Polluted soil

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