VWS Westgarth Office Contact

Orbital House
3 Redwood Crescent
East Kilbride
G74 5PR

+44 (0)1355 588 000
Fax: +44 (0)1355 588 001


Veolia Water Oil & Gas Angola Contact:

Centro Logistico de Talatona
Via C3A Sector de Talatona
Gleba GU - No. 4278 
Andar - RC - No./Letra
Belas - Luanda
República de Angola

Tel: +244 222 711 799


Petrobras P56 (188,680 BWPD)

Process: Sulphate Removal

Client: Petrobras P56

Country: Brasil

Contract Description: Supply of Sulphate Removal System

Contract Date: February 2008

Contract Completion Date: August 2009

SRP Capacity: 188,680 BWPD (30,000 m3/day)

Sea Water Conversion: 75%

Sea Water Feed Quality: 36,000 (tds)

Product Water Output Quality: <100mg/l sulphate

Project Description:

The Project is for the design, supply of a seawater treatment plant sized for 188,680 BPD (30,000 m3/day) of low sulphate water.

The Project scope consists of a single lift module arrangement comprising: Coarse inlet strainers, Vacuum Deaerator package, HP Feed Pumps, Guard Cartridge Filtration, Sulphate Removal Membrane System, Chemical Cleaning System, Chemical Dosing Systems, Control Valves and Instrumentation.

The Project is a repeat of the earlier P51 Project, which was designed for 283,020 BWPD (45,000 m3/day).

Process Description:

Inlet feed is first coarse filtered and then oxygen is removed by a vacuum type deaerator package.Fine filtration is achieved by a set of cartridge filters to provide fine filtration down to 5µm prior to membrane trains. The set of cartridge filters supplies feed water for six (6) trains.

The conditioned water, boosted to the required feed pressure, enters the Sulphate removal trains. Each membrane train is fitted with pressure vessels containing SR90-400i nanofiltration elements.A recovery of 75% is achieved by a 2:1 brine staged configuration. Brine reject from the process is discharged overboard, while the low Sulphate permeate is routed to the plate heat exchanger (provided by others). A dedicated clean in place (CIP) package, consisting of cleaning tank, pump, heater and cartridge filter vessel is provided for membrane cleaning purposes.