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VOL. 7, ISSUE 2 (2025)
Phytoremediation of crude oil contaminated soil using saw dust and grass amendments
Authors
Aneke Jacinta Chinwe
Abstract
Crude oil contamination has affected Nigeria's
arable soil, rendering it desolate. This study investigated the remediation of
crude oil-contaminated soil using sawdust and grass to identify effective
remediation methods. The contaminated soil sample, containing 820g of soil and
crude oil mixture, was amended with sawdust, grass, and their combination. In
four weeks, all treated samples showed an increase in pH, except for the
control, which experienced a decrease. The growth phase was monitored, and the
treatment with sawdust and grass resulted in the highest mean height (18.1) and
mean leaf length (7.1). The control had the lowest mean height (2.5) and mean
leaf length (1.2). The microorganisms present were identified using standard
procedures. The bacterium Bacillus subtilis and the fungus Aspergillus
flavus were identified. The initial hydrocarbon-utilizing count increased
from (2.10) to (2.62) for B. subtilis and from (1.52) to (2.90) for A.
flavus. This study suggests that sawdust, grass, and their combination can
be effective for remediating crude oil-contaminated soil in consortium with
indigenous hydrocarbon-utilizing microorganisms. The findings have implications
for developing sustainable remediation strategies for crude oil-contaminated
soil, potentially benefiting agricultural productivity and environmental
sustainability.
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Pages:12-15
How to cite this article:
Aneke Jacinta Chinwe "Phytoremediation of crude oil contaminated soil using saw dust and grass amendments". International Journal of Ecology and Environmental Sciences, Vol 7, Issue 2, 2025, Pages 12-15
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