Bioremediation of crude oil-polluted soil--effect of poultry droppings and natural rubber processing sludge application on biodegradation of petroleum hydrocarbons.
Laboratory bioremediation experiments were carried out on crude oil-polluted soil samples by applying various amounts of poultry droppings and natural rubber processing sludge as nutrient supplements at 29 degrees and using slurry-phase and solid-phase biodegradation techniques. Changes in the total hydrocarbon content of the soil were determined using a spectrophotometric technique as a function of time. It was found that the extent of crude oil degradation in untreated soil samples was markedly lower (by up to 100%) than in the soil samples treated with nutrient supplements. Hydrocarbon degradation efficiency was higher in the slurry-phase than in the soil-phase technique.
Okieimen
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CO
Department of Chemical Engineering, University of Benin, Benin City, Nigeria.
Okieimen
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FE
D000818:Animals; D001673:Biodegradation, Environmental; D004787:Environmental Pollution; D006838:Hydrocarbons / Q000378:metabolism; D010578:Petroleum / Q000378:metabolism*; D011200:Poultry / Q000382:microbiology*; D012408:Rubber; D012722:Sewage / Q000382:microbiology*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism*; D013053:Spectrophotometry; D013997:Time Factors
D006838:Hydrocarbons; D010578:Petroleum; D012722:Sewage; D012989:Soil Pollutants; D012408:Rubber