Portable Desalination Plants
Portable Desalination Plants
Pacific Water Technology is a leading supplier of portable desalination plants designed for remote locations, vessels and also for disaster relief supplying fresh potable water. The portable desalination range is from 10 l/day to 10 000 l /day. The smallest in the range is the suitcase style desalination plant, capable of producing up to 10 litres of fresh water. A solar package (panels and batteries, can be added to ensure complete self-sufficiency in remote locations. Most of our units have various options including 12 V, 24V and 240 V. Some of our clients include Defense , Fortesque Metals, CSIRO and United Nations Disaster Air Relief for various islands.
Suitcase style desalination units.
The portable units up to 3000 l/day are designed for reliable operation with premium high-pressure pump imported from Italy. We offer both stainless and nickel plate pumps options with most of our systems. We do not try to upsell the stainless pumps to our customers, we rather provide you with our opinion based on our experience and knowledge. The stainless pumps are more expensive compared to nickel plated pumps. The nickel-plated pumps are very resistant to salt water corrosion. These desalination units are very user-friendly, require minimal maintenance and utilise generic filter cartridges that are easy to source. Key to ensure longevity of components is to always rinse the system with fresh water, to prevent in salt water corrosion.
Portable Desalination Units (1000 to 3000l/day)
Pacific Water Technology also supplies desalination units in the range above 3000 l to 10,000 litres per day for smaller remote communities. These units come with manual or automated backwash filters for pre-filtration and require minimal operator intervention. Some of the key features are listed below:
Portable Desal Plant – Features:
- Compact and portable and constructed from 316 Stainless Steel- easy access to system controls.
- Extremely quiet and smooth operation, with complete vibration isolation.
- World-class high-pressure pump made in Italy.
- Post Reverse osmosis Hanovia UV disinfection
- Space efficient design
- No installation restrictions. Access membranes from both sides for easy maintenance and installation options.
- TDS Meter, an essential tool for product water monitoring.
- High rejection, high yield, commercial grade, and chemical resistant DOW Membranes.
- Micro Processor Controlled Electronics with HMI panel provide state of the art technology and reliability with regular Automatic Fresh Water Rinse.
- Stainless Steel, liquid filled exterior and interior Pressure Gauges for accurate measurement of system functions and corrosion resistance.
- Digital Flow Meter for visual monitoring of the product water flow
- All High-Pressure Connections are composite 316L Stainless Steel for maximum corrosion resistance.
Pacific Water Technology supplies also Containerised Desalination Plants- fastRO®
The fastRO® system is a seawater and brackish groundwater desalination system with a daily fresh water production capacity ranging from 50 to 2000 cubic meters. The fastRO® system is based on reverse osmosis technology, available for both indoor and outdoor use. All the desalination components are pre-assembled in 1 to 2 containers, including the piping and control systems, which considerably reduces the on-site installation workload and time required for effective fresh water production. The design and manufacturing of the system comply with ASME, ASTM, IEC, and other internationally recognized industry standards.
About Desalination using Reverse Osmosis.
The reverse osmosis process is a filtration method in which water is passed through a filter membrane with pores so small that only pure water is able to get through. Other contaminants are physically too large to pass through the membrane, so they do not enter the water supply.
Reverse Osmosis removes the widest spectrum of contaminants of any water treatment process. Water is forced through semi-permeable membranes leaving the dissolved particles in the more highly concentrated solution. This process relies on cross flow filtration where a portion of the flow passes the membrane pores preventing these from getting clogged.
For sea water that is typically at about 3 to 4% salt level , the osmotic pressure is up to 33 Bar at water temperatures of 25% A high pressure is therefor required to overcome this osmotic pressure. Desalination plants typically operate at pressures of 55 to 85 Bar . For brackish water sources, a lower pressure can be used for water desalination.