Biodegradation kinetics of petroleum hydrocarbon in soil environment using Mangnifera indica seed biomass: A mathematical approach

Chukwuemeka Peter Ukpaka and Augustina Chiemela Ugiri

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The biodegradation crude oil in polluted soil using Mangnifera indica seed biomass was investigated. The change in total petroleum hydrocarbon (TPH) concentration on the effect of the period of exposure with different dosage of M. indica seed mesh introduced in the different containers were examined and a decrease in TPH concentration was significant. The maximum specific rate and equilibrium constants were determined and the results obtained revealed that the values for room dried M. indica of various dosages at Vmax 50–90 g, 500, 33,333.33, 50,000, 50,000, 27.78 (ppm/per day) and KS 50–90 g, 0.5, 300, 2750, 1124.81 (ppm/per day) were observed. For sun-dried, M. indica of various dosages at Vmax 50– 90 g, , 1.6666.67, , , 100.00 (ppm/per day) and KS 50–90 g, , 16.67, , , 300 (ppm/per day) were recorded. The maximum specific rate and equilibrium constant was determined using the Lineweaver Burk plots Theory as well as excel plot of linear polynomial curve for comparison. Results revealed that the M. indica seed biomass ha promising effeminacy for the degradation of THP in the contaminated soil.