Phytoremediation of Petroleum Hydrocarbon-contaminated Soils with Jatropha curcas and Vetiveria zizanioides
Kwame Nkrumah University of Science and Technology, Dept. of Forest Resources Technology, Ghana
Accidental oil spills during oil exploration and mineral mining operations have deleterious consequences on soils and overall ecosystem health. Environmentally benign methods of reducing hydrocarbon contamination levels in soils and ecosystems are often encouraged. However, there is scanty data on the effects of vegetation on petroleum hydrocarbon concentration in crude oil contaminated soils. The present study investigated the growth performance of two plant species on hydrocarbon contaminated soils and the effects of these plants on hydrocarbon concentration levels in soils. A 2×2 × 3 factorial arrangement of treatments in a completely randomised design with 3 replicates was adopted. Two plant species, 2 soil contamination levels, and 3 soil amendments constituted the major treatment factors. Soil total oil and grease (TOG), total petroleum hydrocarbon (TPH), plant height, collar diameter, and number of leaves or tillers were monitored over a sixteen week period at Ghana Manganese Company Ltd.
Keywords: Collar diameter, compost, hydrocarbon, soil amendment
Contact Address: Bertrand Nero, Kwame Nkrumah University of Science and Technology, Dept. of Forest Resources Technology, DFRT FRNR KNUST, Kumasi, Ghana, e-mail: nerbefestyahoo.com