SEAWATER SYSTEMS

This 90,000 gallon per day seawater reverse osmosis system was commissioned at Port de Plaisance, Sint Maarten, Netherlands Antilles, Caribbean in 1990. The system consists of an open intake from a seawater lagoon where the feed water is forwarded to the R/O building by above ground centrifugal pumps. Prior to the R/O system, it is essential to use multimedia, activated carbon, chemical injection, cartridge filtration, and an ultra-filter membrane system to process the contaminated feed water. This extensive pre-treatment array is necessary to address the fouling potential of the R/O membranes due to the poor quality of the lagoon. The single pass R/O system utilizes membranes with a minimum rejection of 99.8% to achieve an average permeate quality of 350 ppm. Post-treatment is comprised of a calcium carbonate contact tank to adjust the pH and alkalinity, zinc orthophosphate injection for corrosion control, and calcium hypochlorite injection for sanitation.

LifeSource Engineering, Inc. has a management contract with this client and is on-site 6-8 times per year.

REFERENCE LETTER

Request for Water Purification Quote