Assessment and treatment of hydrocarbon inundated soils using inorganic nutrient (N-P-K) supplements: II. A case study of eneka oil spillage in Niger Delta, Nigeria.

Environmental Monitoring and Assessment
Leo C OsujiChukwunnoye M Ojinnaka

Abstract

Polluted soils from Eneka oil field in the Niger delta region of Nigeria were collected two months after recorded incidence of oil spillage as part of a two-site reclamation programme. The soils were taken on the second day of reconnaissance from three replicate quadrats, at surface (0-15 cm) and subsurface (15-30 cm) depths, using the grid sampling technique. Total extractable hydrocarbon content (THC) of the polluted soils ranged from 1.006 x 10(3)-5.540 x 10(4) mg/kg at surface and subsurface depths (no overlap in Standard Errors at 95% Confidence Level). Greenhouse trials for possible reclamation were later carried out using (NH(4))(2)SO(4), KH(2)PO(4) and KCl (N-P-K) fertilizer as nutrient supplements. Nitrogen as NO(3)-N and potassium were optimally enhanced at 2% (w/w) and 3% (w/w) of the N-P-K supplementation respectively. Phosphorus, which was inherently more enhanced in the soils than the other nutrients, maintained same level impact after 20 g treatment with the N-P-K fertilizer. Total organic carbon (%TOC), total organic matter (%TOM), pH and % moisture content all provided evidence of enhanced mineralization in the fertilizer treated soils. If reclamation of the crude oil inundated soils is construed as the return ...Continue Reading

References

Sep 1, 1993·Environmental Monitoring and Assessment·L O Odokuma, G C Okpokwasili

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Citations

Nov 1, 2016·Environmental Science and Pollution Research International·I Pérez-HernándezP Martínez-Zurimendi
Nov 15, 2020·Environmental Science and Pollution Research International·Macdonald Ogorm MafianaShi-Weng Li
Feb 20, 2021·Environmental Science and Pollution Research International·Macdonald Ogorm MafianaShi-Weng Li

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