Preprint Article Version 1 This version is not peer-reviewed

Potential of Sorghum bicolor L. (Moench) and the Effect of Enhancements in Remediation of Petroleum-Vitiated Soils of an Automobile Repair Workshop in Urbanite Kampala

Version 1 : Received: 26 November 2018 / Approved: 18 January 2019 / Online: 18 January 2019 (10:19:45 CET)

How to cite: Omara, T.; Kalukusu, R.; Adupa, E.; Owori, T.; Kizza, D.M.; Obonge, J. Potential of Sorghum bicolor L. (Moench) and the Effect of Enhancements in Remediation of Petroleum-Vitiated Soils of an Automobile Repair Workshop in Urbanite Kampala. Preprints 2019, 2019010182 (doi: 10.20944/preprints201901.0182.v1). Omara, T.; Kalukusu, R.; Adupa, E.; Owori, T.; Kizza, D.M.; Obonge, J. Potential of Sorghum bicolor L. (Moench) and the Effect of Enhancements in Remediation of Petroleum-Vitiated Soils of an Automobile Repair Workshop in Urbanite Kampala. Preprints 2019, 2019010182 (doi: 10.20944/preprints201901.0182.v1).

Abstract

The potential of Sorghum bicolor L. (Moench) (Epuripur 1995) to phytoremediate petroleum oil-adulterated soils from an automobile repair workshop and the effect of enhancement factors: NPK fertilizer, cow dung and sewage sludge in in situ phytoremediation of the soil by the plant were assessed in this study. 50kg of petroleum oil-contaminated soil was collected from the workshop and divided into five equal portions. Four portions were potted with four sorghum plants with three subjected to equal amounts of enhancements (5%w/w) under normal growth conditions for 72 days. Representative soil samples were collected from spots at depths of 0–10 cm and 10–20 cm from the potted soils and subjected to Soxhlet oil extraction after 72 days. Experimental results revealed that S. bicolor survived in the petroleum oil-contaminated soils. Amendment of the petroleum oil-vitiated soils with cow dung, sewage sludge and NPK fertilizer augmented the remediation capacity of Epuripur 1995 by 12.5%, 6.3% and 9.1%. Addition of cow dung to crude oil contaminated soils could make such soils fully reestablished for agricultural activities. Further research aimed at determination of the phytoremediation potential of cereals such as corn, barley, rye, millet should be done.

Subject Areas

enhancement factors; Epuripur 1995; resource curse; Urbanite Kampala

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