Benzene utilization as growth substrate by a newly isolated aerococcus sp. strain bpd-6 indigenous to petroleum hydrocarbon contaminated oily sludge
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Monoaromatic hydrocarbons such as benzene have been found in sludge created by oil production facilities and industries. Benzene is considered as a carcinogenic substrate and biodegradation, primarily under aerobic conditions, is an important environmental process for water and soil associated benzene remediation. Aerococcus sp. strain BPD-6 isolated from petroleum hydrocarbon contaminated oily sludge was characterized in terms of its growth in presence of benzene (50–1000 mg L-1) as the sole carbon and energy source in mineral salts medium. The growth kinetics of the strain was analysed and the Haldane model was found to be a good fit for the experimental data with kinetic constants maximum specific growth rate (µ max) = 0.02157 h-1, half saturation constant K s = 19.56 mg L-1 and substrate inhibition constant Ki = 1584 mg L-1. The biodegradation rate kinetic parameter was obtained for the first order kinetic model and thus the results indicate that this Gram-positive strain can potentially be utilized in bioremediation of benzene containing oily sludge.
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Monoaromatic hydrocarbons such as benzene have been found in sludge created by oil production facilities and industries. Benzene is considered as a carcinogenic substrate and biodegradation, primarily under aerobic conditions, is an important environmental process for water and soil associated benzene remediation. Aerococcus sp. strain BPD-6 isolated from petroleum hydrocarbon contaminated oily sludge was characterized in terms of its growth in presence of benzene (50–1000 mg L-1) as the sole carbon and energy source in mineral salts medium. The growth kinetics of the strain was analysed and the Haldane model was found to be a good fit for the experimental data with kinetic constants maximum specific growth rate (µ max) = 0.02157 h-1, half saturation constant K s = 19.56 mg L-1 and substrate inhibition constant Ki = 1584 mg L-1. The biodegradation rate kinetic parameter was obtained for the first order kinetic model and thus the results indicate that this Gram-positive strain can potentially be utilized in bioremediation of benzene containing oily sludge.
That's it i know
and thanks for asking
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