Treatment of Petroleum Refinery Wastewater Using Extended Aeration Activated Sludge

Abstract:

The petroleum refinery wastewater biological treatment is widely investigated because of the potential complete mineralization and environmental aspect. In this study, petroleum refinery wastewater was treated in an extended aeration activated sludge (EAAS) reactor A, operated in parallel with EAAS reactor B as a control, fed with municipal wastewater. The chemical oxygen demand (COD) organic loading rate (OLR) of the refinery wastewater in reactor B was approximately 0.057 kg COD/m³·d compared to reactor A of 0.004 kg COD/m³·d throughout the study period. The flowrate for both reactors was maintained at 21.4 L/day. Food to microorganism (F/M) ratio, COD, mixed liquor suspended solids (MLSS), and mixed liquor volatile suspended solids (MLVSS) were monitored throughout the study period. The result indicated high removal efficiency of organic matter of approximately 87% as COD with 2582 mg/L of the petroleum refinery wastewater as influent and 140 mg/L as effluent.

• Periodical: International Journal of Engineering Research in Africa (Volume 13)
• Pages: 1-7
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.13.1
• Online since: December 2014
• Authors: Gasim Hayder Ahmed Salih, Abdur Rahman Megat Mohamed Amin Megat, Rahman Mohamed Kutty Shamsul
• Keywords: Extended Aeration Activated Sludge, Organic Loading Rate, Petroleum Refinery Wastewater

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