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Singapore Journal of Scientific Research

Year: 2019 | Volume: 9 | Issue: 2 | Page No.: 77-85
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Authors

Chukwuma Chukwuemeka Chukwuma

Chukwuma Chukwuemeka Chukwuma

Ibude Jane Aruorivwooghene

Nwaichi Eucharia Oluchi

Nwaichi Eucharia Oluchi

Monanu Michael Okechukwu

Keywords

Background and Objective: The successful use of plants to effectively remediate crude oil contamination of the ecosystems has gained prominence over the years. This study was undertaken to evaluate the soil heavy metals remediation using Mariscus alternifolius, Fimbristylis ferruginea, Schwenkia americana and Spermacoce ocymoides. Materials and Methods: Remediation of the contaminated soil was carried out for a 12 week period. Pot experiment was adopted for the study. Standard field and laboratory procedures were duly followed. Results: The heavy metals concentrations of the polluted soil before remediation were 6.27±0.10 mg kg–1 Cd, 390.37±5.00 mg kg–1 Pb and 143.66±1.00 mg kg–1 Cr. Results after 12 weeks remediation, revealed amongst the plant species used for the treatment, F. ferruginea was the most effective species for the remediation of cadmium and chromium with 70.3 and 93.80% removal, respectively. For lead, however, M. alternifolius boosted as the best performing with 89.0% removal. As per restoration, M. alternifolius, F. ferruginea, S. americana and S. ocymoides restored the polluted soil towards normalcy. For lead, only treatment using S. ocymoides restored the polluted soil towards normalcy (65.07%) while in regard to chromium, treatments using M. alternifolius, F. ferruginea and S. americana restored the polluted soils at 145.47, 27.18 and 353.36% recoveries, respectively. Conclusion: The application of these plants has demonstrated to be efficient for the removal of heavy metals in crude oil polluted soils. These plants are, therefore, recommended for use in the remediation of heavy metals contaminated soils.
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Chukwuma Chukwuemeka Chukwuma, Ibude Jane Aruorivwooghene, Nwaichi Eucharia Oluchi and Monanu Michael Okechukwu, 2019. Soil Heavy Metals Remediation Using Mariscus alternifolius, Fimbristylis ferruginea, Schwenkia americana and Spermacoce ocymoides. Singapore Journal of Scientific Research, 9: 77-85.

URL: https://scialert.net/abstract/?doi=sjsres.2019.77.85

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