Hallmark Water Treatment - Offshore Reverse Osmosis (RO) Watermaker

In the vast expanse of the ocean, freshwater remains a precious commodity for those who operate on its surface or beneath its waves. Offshore facilities, including oil rigs, cargo ships, and research vessels, all have a vital need for clean, drinkable water. This is where offshore RO plants come in - technological marvels that convert seawater into fresh water, ensuring a reliable source of hydration and supporting various industrial processes.
Using Hallmark Water Treatment's offshore RO water makers onboard has made expensive practices of bunkering and storing large volumes of freshwater no longer necessary. Our custom-engineered RO plant is compact, saving valuable space on board. With a simple yet advanced design, these systems make operation and maintenance easy and independent, offering a seamless solution for offshore water purification.

An offshore RO water maker, also known as a Freshwater generator, utilizes reverse osmosis (RO) technology to remove salts and impurities from seawater. Here's a breakdown of the process:

• Pre-treatment: Seawater is first pre-treated to remove larger particles like sand and debris that could damage the RO membranes. A feed pump may draw raw water from the raw water tank/pipeline to pass through prefiltration. This may involve Multimedia Filtration, Bag or cartridge filtration in various micron ratings. An antiscalant dosing system also may use to protect membranes from scaling.
• High-pressure pump: The pre-treated seawater is then pressurized by a high-pressure pump into the membranes. This increased pressure is essential for forcing the water through the semi-permeable membrane.
• Semi-permeable membrane: The heart of the RO system is the semi-permeable membrane. This membrane allows water molecules to pass through while rejecting dissolved salts and other contaminants. Also, the permeate, which is the purified freshwater, is collected on one side of the membrane and stored in the freshwater tank.
• Brine reject: The remaining concentrated salt solution, known as brine reject, is discharged overboard.

Offshore RO watermakers play a crucial role in various maritime and offshore applications:

• Rigs / Accommodation Barges / Workboats / Ships : Providing a consistent supply of safe, fresh water for crew members on ships and personnel working on offshore rigs and platforms.
• Livestock Carrier Ship: A livestock carrier is a large ship used in the live export of sheep, cattle and goats. These animals consume large amount of water during the transit.
• Industrial processes: Supplying high-quality water for various industrial applications on offshore facilities, including boiler feed water, cooling water, and well injection water in the oil and gas industry.
• Aquaculture: For offshore fish farms and hydroponic greenhouses, RO watermakers can produce the necessary freshwater for sustaining plant and animal life.
• Scientific research: Research vessels require a reliable source of clean water for conducting experiments and analyses. RO systems can fulfill this need by producing high-purity water.