A global manufacturer located in Freeport, Grand Bahama was facing a shortage of water required for their manufacturing process and other facility needs. The facility draws water from a single land-based seawater well on the property and is treated by media filters and a two-pass RO system. The local government also provides water but quantity, quality and availability is variable and unreliable forcing the manufacturer to be self-sufficient to avoid disrupting their operations. The existing 1st pass seawater trains were severely deteriorated from the demanding environment and corrosive materials of construction. A short delivery option was needed to immediately supplement their existing seawater trains to increase capacity and reliability.
Harn R/O was contacted through the manufacturer’s water services provider. Harn R/O had a mobile containerized seawater RO system available for lease that was designed and built by Harn R/O that would meet the manufacturer’s needs. The container was ready for shipment to Grand Bahama within 4 weeks and was started up within 8 weeks of agreement of lease terms.
Containerized seawater RO system designed and built by Harn R/O prior to
|Container installed at location in Grand Bahama during startup.|
The containerized seawater RO system designed and built by Harn R/O has been running continuously since September 2014 with a high degree of reliability and efficiency because of the sound design and high-quality materials and components. The unit is expected to operate indefinitely until the existing equipment can be replaced or refurbished.
Brief R/O System Specification
|Application:||Treating seawater to support industrial manufacturing process|
|Capacity:||86,400 gallons per day of permeate water at 45% recovery|
|Array:||Single stage, 3 pressure vessels containing 7 elements per vessel|
|Pretreatment:||Scale inhibitor, cartridge filter|
|Low Pressure Piping:||Sch. 80 PVC|
|High Pressure Piping:||AL6XN Stainless Steel|
|Membrane Type:||Filmtec SW30HRLE-400i|
|Frame Material:||Fiberglass reinforced polymer (pultruded)
|Feed Conductivity:||50,000 μS/cm|
|Feed Temperature:||78.8 °C|
|Feed Pressure:||805 psig|
|Permeate Flow:||60 gpm (45% recovery)|
|Permeate Conductivity:||450 μS/cm (99.1% rejection)|
|Energy Consumption:||6.92 kWh/kgal|