Spent lubrication oil from a serviceable, functional motor vehicle was cleaned of Cu and Ni using five different types of waste plastic materials (plastic water bottles, vegetable oil gallons and engine oil gallons) in batch adsorption processes. Atomic Absorption spectral (AAS) analysis of the spent oil before cleaning showed that Copper (Cu) was present at 18.2 mgL-1 and nickel (Ni) at 26.1 mgL-1 levels. After treatment with the waste plastics, final product plastic (FPP), Goshen water plastic (GWP), water-first plastic (WFP), engine oil waste plastic gallon (EOG) and vegetable oil waste plastic gallon (VOG), the engine oil was observed to contain reduced levels of Cu to as low as 2.3, 3.2, 2.7, 2.4 and 2.9 mgL-1 respectively while Ni reduced to 10.6, 11.1, 10.7, 10.1 and 10.3 mgL-1 respectively at equilibrium. The Gibbs free energy of adsorption for the plastic bottles and gallons was determined using standard methods and fell in the range of -0.516 and -4.972kJmol-1, which indicates that the process was exclusively physical adsorption. The modified Arrhenius type equation described the metals adsorption pattern onto the plastic materials.

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@article{Kukwa03041005,
title = " Cu and Ni Mop up from Spent Lubrication Oil Using Disposed Plastic Materials ",
journal = "International Journal of Science and Engineering Applications (IJSEA)",
volume = "3",
number = "4",
pages = "87 - 93",
year = "2014",
author = " D. T. Kukwa,R. E. Ikyereve,E.O. Agbo ",
}