Publication: Treatment of petroleum refinery wastewater using extended aeration activated sludge
Date
2015
Authors
Gasim H.
Megat A.R.M.M.A.
Shamsul R.M.K.
Journal Title
Journal ISSN
Volume Title
Publisher
Trans Tech Publications Ltd
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/m3d compared to reactor A of 0.004 kg COD/m3d 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. Copyright � 2015 Trans Tech Publications, Switzerland.
Description
Biological water treatment; Chemical oxygen demand; Effluents; Petroleum refineries; Refining; Wastewater treatment; Water aeration; Water treatment; Activated sludge; Environmental aspects; Mixed liquor suspended solids; Mixed liquor volatile suspended solids; Municipal wastewaters; Organic loading rates; Petroleum refinery wastewaters; Refinery wastewaters; Chemicals removal (water treatment)