Oil removal from produced water by conjugation of flotation and photo-Fenton processes.
The present work investigates the conjugation of flotation and photo-Fenton techniques on oil removal performance from oilfield produced water. The experiments were conducted in a column flotation and annular lamp reactor for induced air flotation and photodegradation steps, respectively. A nonionic surfactant was used as a flotation agent. The flotation experimental data were analyzed in terms of a first-order kinetic rate model. Two experimental designs were employed to evaluate the oil removal efficiency: fractional experimental design and central composite rotational design (CCRD). Overall oil removal of 99% was reached in the optimum experimental condition after 10 min of flotation followed by 45 min of photo-Fenton. The results of the conjugation of induced air flotation and photo-Fenton processes allowed meeting the wastewater limits established by the legislations for disposal.
['da Silva|Syllos Santos|SS|', 'Chiavone-Filho|Osvaldo|O|', 'de Barros Neto|Eduardo Lins|EL|', 'Foletto|Edson Luiz|EL|']
D019652:Extraction and Processing Industry D060587:Groundwater D006861:Hydrogen Peroxide D007501:Iron D007700:Kinetics D008956:Models, Chemical D010578:Petroleum D010782:Photolysis D013501:Surface-Active Agents D014865:Waste Disposal, Fluid D014874:Water Pollutants, Chemical
Produced water Flotation Photo-Fenton Oilfield Integration