Author/Authors :
Izanloo, H. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Mesdaghinia, A tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Nabizadeh, R. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Nasseri, S. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Naddafi, K. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Mahvi, A. H. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران , Nazmara, Sh. tehran university of medical sciences tums - School of Public Health and Center for Environmental Research - Department of Environmental Health Engineering, تهران, ايران
Abstract :
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/m3. The system was able to achieve 83.14–97.05 percentage removal efficiencies of soluble chemical oxygen demand (SCOD) in the organic loading rate range of 0.84 to 9.41 g SCOD/m2.day. Results showed that the effluent SCOD concentration ranged between 18.93 and 100.93 mg/L 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.
Keywords :
Aerated submerged fixed , film (ASFFR) bioreactor , SCOD removal , attached growth , organic loading rate , oily wastewater , discharge standards
