Abstract
This research focused on the biodegradation of petrogenic hydrocarbons in wastewater using membrane bioreactor technology. Industrial oily wastewater with mixed fractions of hydrocarbons was collected and continuously treated for 50 days. Membrane bioreactor (MBR) effluent samples were analyzed daily for both aliphatic and aromatic hydrocarbons using gas chromatography–mass spectrometry. Many other water quality parameters were also measured including chemical oxygen demand, dissolved oxygen, turbidity, heavy metals and heterotrophic bacterial counts. These parameters were essential in evaluating the performance of the MBR treatment process. During the treatment period, 98.0, 96.0 and 99.8 % removal of total aliphatic hydrocarbons in the lube oil fraction, total aliphatic hydrocarbons and total polycyclic aromatic hydrocarbons, respectively, were achieved. Overall, total organic removal, measured in terms of chemical oxygen demand, ranged from 88.3 to 92.6 %. Degradation kinetics was investigated for hydrocarbons and chemical oxygen demand. Half-lives of alkanes varied from several days to 40 days in the treatment process. Therefore, this study demonstrated that MBR is an effective treatment method for the removal of petroleum hydrocarbons in wastewater.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Science and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
