The treatment of wastewater containing crude oil with aerated submerged fixed-film reactor.
An aerated submerged fixed-film (ASFF) bioreactor was developed to treat an artificial wastewater based on crude oil. Bee-Cell 2000 was used as support media having porosity of 87% and a specific surface area of 650 m2 m(-3). The system was able to achieve 70.87-93.12% removal efficiencies of Chemical Oxygen Demand (COD) in the organic loading rate range of 1.310 to 15.797 g COD m(-2) day(-1). Data gained exhibited that the effluent COD concentration ranged between 68.68 and 292.60 mg L(-1) at organic loadings experienced. Therefore, an ASFF process showed that it was feasible to treat high oily wastewater in order to meet the discharge standards.
Izanloo
H
H
Center of Environmental Research and Department of Environmental Health Engineering, School of Public Health, Medical Sciences/University of Tehran, Tehran, Iran.
Mesdaghinia
A
A
Nabizadeh
R
R
Naddafi
K
K
Nasseri
S
S
Mahvi
A H
AH
Nazmara
S
S
D019149:Bioreactors; D004867:Equipment Design; D009930:Organic Chemicals / Q000032:analysis; D010100:Oxygen / Q000737:chemistry; D010578:Petroleum / Q000032:analysis*; D010865:Pilot Projects; D014865:Waste Disposal, Fluid / Q000379:methods; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification / Q000379:methods*
D009930:Organic Chemicals; D010578:Petroleum; D014874:Water Pollutants, Chemical; D014867:Water; D010100:Oxygen