Author/Authors :
R ،Babaee Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , N ،Fallah Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , B ،Bonakdarpour Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran , B ،Nasernejad Department of Chemical Engineering - Amirkabir University of Technology, Tehran, Iran
كليدواژه :
Styrene , Biodegradation , Petrochemical wastewaters , activated sludge
چكيده لاتين :
The kinetics of the aerobic biodegradation of styrene using an activated sludge obtained from the wastewater treatment
plant of a Petrochemical complex in Iran was evaluated. For this purpose synthetic wastewater samples containing
styrene in the concentration range 0-123 mg/l were prepared and biodegradation assays were carried out in serum
bottles using shake flask cultivation. The styrene concentration in the liquid phase was monitored via determination of
styrene concentration in the gas phase of the serum bottles using headspace method. The dependence of specific
degradation rate (SDR) on styrene was determined. It was found that Haldane equation adequately predicted the
biodegradation of styrene. The kinetic constants were determined as ,
, .
