Kigho M Oghenejoboh
Nigeria
Research Article
Biodegradation of Bitumen in Soil and Its Enhancement by Inorganic
Fertilizer and Oxygen Release Compound: Experimental Analysis and
Kinetic Modelling
Author(s): Samuel E Agarry and Kigho M OghenejobohSamuel E Agarry and Kigho M Oghenejoboh
The objective of this work was to investigate and evaluate the effect of inorganic nutrient (NPK fertilizer), hydrogen peroxide and their combinations on the kinetics of bitumen degradation by autochthonous microorganisms in the soil. The study was carried out by artificially contaminating an un-impacted tropical soil with 40 g/kg of bitumen in plastic bins and amended with various amount of NPK fertilizer (1.63 g, 2.10 g and 2.56 g), hydrogen peroxide (0.5 g and 1.0 g) and combinations of NPK fertilizer and hydrogen peroxide (2.13 g, 2.60 g and 3.06 g), respectively. The bioremediation was carried out for 21 days. Results showed that inorganic NPK fertilizer, hydrogen peroxide and their combinations stimulated microbial growth and enhanced bitumen biodegradation. The bacterial count and percentage total petroleum hydrocarbon degradation relatively increased with increase in the amoun.. View More»
DOI:
10.4172/1948-5948.S4-002