SAO PAULO, Brazil, Mar. 16, 2009 -- Veolia Water Solutions & Technologies Brazil (VWS) has been selected by PETROBRAS to provide a turnkey contract for a new 300 m³/h (1320 gpm) wastewater treatment plant at its Henrique Lage (PETROBRAS REVAP) refinery. The project will include a membrane bioreactor (MBR) process that will form an integral part of the overall refinery wastewater treatment plant.
The REVAP refinery is located in Sao Jose dos Campos and is PETROBRAS' fourth largest refinery in Brazil. The refinery produces gasoline, diesel fuel, jet fuel, LPG, asphalt and sulfur. The new wastewater treatment plant will treat the high salinity wastewater (800 to 2000 ppm chlorides) from the desalter and from drainage of the crude oil tank bottom. The complete system consists of multiple steps: API type oil/water separation, coagulation and flocculation, dissolved air flotation (DAF), nutshell filtration for free oil polishing, equalization and secondary treatment with membrane biological reactors (MBR).
PETROBRAS selected VWS and the technologies after a long period of pilot studies with several applications and suppliers. The contract with VWS also includes the supply of a 700 m³/h (3083 gpm) ACTIFLO clarification plant for the existing wastewater treatment plant, which will polish wastewater from secondary clarification prior to its reuse.
PETROBRAS is an integrated company that performs in oil and oil byproduct exploration, production, refining, marketing, and transportation, both in Brazil and abroad.
Veolia Water Solutions & Technologies is a world leader in engineering and technological solutions in water treatment for industrial companies and municipal authorities.