Seawater Desalination is a process that takes away mineral components from saline or salty water. Salty ocean or seawater is desalinated to produce water suitable for human consumption or irrigation for agriculture or landscaping use.
The process is a split stream filtration where by the product water or filtered water comes out in one stream and the brine water (water that was filtered out with high concentrations of salts) comes out a 2nd stream. Seawater desalination is used on many seagoing vessels including submarines. Most of the interest in seawater desalination is focused on cost-effective provision of fresh water for human use.
Seawater desalination accounts for about one percent of the world’s drinking water. Seawater Desalination is particularly prevalent in countries located in the North Africa and Middle East region region, such as UAE, Kuwait, and Saudi Arabia. Seawater Desalination is also an important source of water in the some of the small islands around the world.
Seawater Desalination is generally more costly than filtering surface water, groundwater or water recycling due to its energy consumption. However, these alternatives are not always available and depletion of reserves is a critical problem worldwide. Seawater desalination processes are usually designed around either thermal distillation or reverse osmosis.
Seawater desalination water purification by Haliant Technologies utilizes best design practices for the highly corrosive environment and feed water conditions. Frames are fabricated from 304 Stainless steel and powdercoated. We use 2205 Stainless Steel on all high-pressure piping, and duplex stainless steel on all high-pressure piping. Pressure Vessels are made of Fiberglass rated at 1000 psi and the reverse osmosis membranes are designed and engineered for the high-pressure conditions for seawater purification. Larger systems utilize an energy recovery device which significantly reduces energy consumption.
These reverse osmosis systems also include a fiberglass 5 micron prefilter cartridge, automatic shut- off valve, and a permeate flush system. Our seawater desalination systems are built with acrylic block flow meters, 316SS Pressure gauges, and a set of PVS low pressure piping. We can also include digital flow meters, pressure sensors, and a variety of digital metering devices to monitor the system performance. A variable speed drive can be included in the design to improve performance and minimize the initial power spike when the pump motor turns on. The control box has the programmable logic controller, and human interface touchscreen assembled in a nema 4x enclosure. Haliant Technologies can program a variety of features into the PLC to integrate other components in the process. Remote monitoring capabilities are programmed in to allow for system monitoring anywhere in the world,
All seawater desalination systems can be custom designed and configured to meet the specifications for the project. The Haliant engineering team will be available throughout the process to ensure a successful installation and commissioning.