Abstract: The composition of the water soluble fraction of Amukpe well-head sample of crude oil before and after exposure to Pistia stratiotes was investigated. Ionic contents, heavy metals and physical characteristics were determined before and after exposure. The Pistia sp. was exposed to (full-strength), 100, 50 and 25%, WSF water (control, %WSF) for 5 days. The composition of the WSF changed during the experimental period. The following ionic components of WSF increased in concentration (Cl-, NO3-, HCO3-, SO42-, Na+, K+ and Ca++), heavy metals (Mn and Zn) and physical characteristics (TDS and EC). Heavy metals (Cu on the other hand and Fe) ions (Mg2+ and Fe2+) and physical characteristics (pH) were found to decrease after exposure to the Pisita. The statistical analysis showed significant difference between control and WSF treatments.
E. Edema Noyo and E. Okoloko George , 2008. Composition of the Water Soluble Fraction (WSF) of Amukpe Well-Head Crude Oil Before and after Exposure to Pistia stratiotes L.. Research Journal of Applied Sciences, 3: 143-146.