American Journal of Environmental Science and Engineering
Volume 3, Issue 1, March 2019, Pages: 1-7
Received: Nov. 8, 2018;
Accepted: Dec. 19, 2018;
Published: Jan. 24, 2019
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Christiana Edward Anih, Department of Chemical Engineering, Federal University of Petroleum Resources, Effurun, Nigeria
Akindele Okewale, Department of Chemical Engineering, Federal University of Petroleum Resources, Effurun, Nigeria
Nsidibe-Obong Ekpe Moses, Department of Chemical Engineering, Federal University of Petroleum Resources, Effurun, Nigeria
Crude oil pollution has been a common challenge in the Niger Delta region of Nigeria. The use of biological remediation has helped to detoxify and restore the ecosystems damaged by crude oil spillage. Nutrient addition has been proven to be an effective strategy to enhance oil biodegradation, as they could utilize crude oil as the source of carbon and energy and give a reasonably high biodegradation rate. The effect of biostimulants on the bioremediation of crude oil-polluted water was investigated in this study. Four samples, each having crude oil to water ratio of 1:4 was used. Three sets of samples were each inoculated with microbial load 1x 106cfu/ml of Aspergillus Niger, and Pseudomonas Aeruginosa as microbial consortium. All the samples, including the controls, were closely observed for a period of seven weeks at one-week interval for the physiochemical parameters such as pH, Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Total Hydrocarbon Content (THC), turbidity, and total microbial count. Of all these parameters, only BOD, DO, turbidity, and THC were seen to decrease generally with time of remediation for all the samples. Maximum reductions in value of 94.04%, 97.45%, and 99.09% were achieved for turbidity, BOD, and THC respectively at the microbial consortium load of 1x 10 6cfu/ml.
Christiana Edward Anih,
Nsidibe-Obong Ekpe Moses,
Effect of Nutrients on Bioremediation of Crude Oil-Polluted Water, American Journal of Environmental Science and Engineering.
Vol. 3, No. 1,
2019, pp. 1-7.
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