Phytoremediation of Waste Engine Oil Polluted Soil in Southeast, Nigeria
Publication Date: 09/04/2019
Author(s): Ifediora Nonyelum Helena, Edeoga Hilary Odo, Omosun Garuba.
Volume/Issue: Volume 2 , Issue 2 (2019)
Abstract:
The potentials of B. deflexia and P. scrobiculatum grass species to phytoremediate waste engine oil contaminated soil was investigated. Waste engine oil was added to 4 kg different soil samples to obtain different concentrations on weight basis: 0 % (control), 2 %, 4 %, 7 % and 10 % v/w oil-in-soil and allowed to stand for seven days before transplanting. At the end of 8 weeks of transplanting, the plants were harvested. Both the dried plants parts and the soil samples were subjected to heavy metal analysis for Pb, Zn, Cu and Ni. The result obtained showed that there was increased percentage reduction of heavy metals in the soils. B. deflexia and P. scrobiculatum showed maximum reduction of Ni (99.96%) and Ni (99.76 %) respectively. As the percentage reduction increased the concentrations of the waste engine oil increased. In order words the two grass species studied possess the phytoextraction potential for phytoremediation of waste engine oil contaminated soil.
