Bioscience and Bioengineering
Articles Information
Bioscience and Bioengineering, Vol.1, No.5, Dec. 2015, Pub. Date: Jan. 16, 2016
Determining Break Down of Hydrocarbons in Effluent Discharges from Petroleum Service Stations
Pages: 112-117 Views: 702 Downloads: 497
Authors
[01] Okova Wangaki Derek, Department of Civil and Construction Engineering, University of Nairobi, Nairobi, Kenya.
[02] Dulo Simeon Otieno, Department of Civil and Construction Engineering, University of Nairobi, Nairobi, Kenya.
[03] Patts M. A. Odira, Department of Civil and Construction Engineering, University of Nairobi, Nairobi, Kenya.
Abstract
The study sought to find out how hydrocarbons are broken down in effluent from petrol stations by the existing bacteria in the effluent. This was established by collecting samples from two petrol station interceptors and subjecting them to chromatography tests as well as bacterial enumeration experiments over a period of forty days. It was observed that various changes took place in the samples from the chromatography results, whereby the constituent hydrocarbon quantities reduced significantly and in some cases they got eliminated completely. It was also confirmed that there existed various strains of bacteria in the samples and their population increased for a period of time until it reached an optimum where the population stagnated. Both observations realized enhanced changes and faster growth of microorganisms where nitrogen and phosphorous had been added to the samples.
Keywords
Hydrocarbons (HC), Microorganisms, Effluent, Bioremediation, Degradation
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