%0 Journal Article
%T Evaluation of dissolved air flotation unit for oil produced water
%A Rojas
%A Carlos
%A Rinc¨®n
%A Nancy
%A D¨ªaz
%A Altamira
%A Colina
%A Gilberto
%A Behling
%A Elisabeth
%A Chac¨ªn
%A Elsa
%A Fern¨¢ndez
%A Nola
%J Revista T¨¦cnica de la Facultad de Ingenier¨ªa Universidad del Zulia
%D 2008
%I Scientific Electronic Library Online
%X in this investigation a dissolved air flotation system was evaluated. the reactor used was to the lab scale. the flotation system was used for the treatment of production oil waters, from a separator api located at the patio tanks ule, in t¨ªa juana zulia (venezuela). the samples were characterized by determining parameters such as: ph, chloride, alkalinity, turbidity, suspended solids, oil and grease. the optimum coagulants dosage, and the coagulant to be used were evaluated by the £¿jar test£¿, using commercial chemical coagulants to help the flotation process in a dissolved air environment. the results showed that, the cationic flocculant of high molecular weight (fcapm) was the most appropriated at a concentration of 0,006% in volume (3, 54 mg/l). the flotation tests were carried out at three different pressures (30, 40 and 50 psi), and for each condition the recycle percentage was varied (30 %, 40% and 50% of the feeding). the operational condition in which the best results were obtained were for pressure 40 psi and recycle percentage 40%, at this values the removal of oil and grease was 90%, suspended solids 72% and effluent clarification 70%.
%K dissolved air flotation (daf)
%K production waters
%K oils and grease
%K suspended solids.
%U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0254-07702008000100007&lng=en&nrm=iso&tlng=en