Desalination unit for sea water
Seawater desalination reverse osmosis system
Skid mounted or containerised reverse osmosis desalination plants that are able to produce fresh water for potable or technical purposes.
Seawater reverse osmosis desalination plants are designed to produce drinking water (salt content less than 500 ppm) from a seawater feeding with salinity up to 55000 ppm and capacity up to 5000 m3/day.
The end user shall only connect seawater feeding header, product water outlet header and brine outlet.
The plant is fully automatic to ease the operation of the end user.
All the materials are selected to guarantee the longest lifetime of the package and to minimize the routine maintenance; as an example, the seawater pipes under high pressure are manufactured in Duplex stainless steel, while those under low pressure are made in atoxic PVC.
Each reverse osmosis plant is equipped with CPI (Clean In Place) system for periodical membrane cleaning.
STANDARD FEATURES
- Seawater feed pump
- Dual media filter/filters
- 5 micron cartridge filter/filters
- 8” FRP membrane housing 1000 psi
- High rejection seawater membranes
- Duplex stainless steel high pressure piping
- PVC low pressure piping
- High pressure pump in duplex stainless steel
- High pressure pump controlled by VFD
- Energy recovery device (turbocharger)
- Permeate remineralization
- Membrane automatic flushing system
- Chemical cleaning system
- PLC control
- Heavy duty steel frame
SC/OS SERIES
Skid-mounted heavy duty seawater desalination packages for ships and offshore platforms.
OPTIONS
- Energy recovery with pressure exchangers
- Chemical conditioning systems
- Configuration for hazardous areas
- Containerized version
- UF pre-treatment
- Skid customization according to the available space for installation
DESIGN CONDITIONS
- Design seawater salinity: 37500 ppm or 45000 ppm
- Minimum seawater temperature: 10°C
- Maximum seawater temperature: 30°C
- SDI < 5
|
MODEL |
SW100 |
SW200 |
SW250 |
SW350 |
SW500 |
SW1000 |
|
Permeate flow (m3/day): |
100 |
200 |
250 |
300 |
500 |
1000 |
|
Feed flow (m3/hour): |
9,3 |
18,5 |
23,15 |
34,71 |
46,30 |
92,60 |
|
Concentrate flow (m3/hour): |
5,13 |
10,15 |
12,72 |
20,15 |
25,45 |
51,00 |
|
Membrane elements and Vessels |
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Vessel quantity: |
1 |
3 |
3 |
4 |
5 |
10 |
|
No. elements: |
6 |
6 |
6 |
6 |
6 |
6 |
|
High Pressure feed pump
|
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Type: |
Positive displacement |
Centrifugal |
Centrifugal |
Centrifugal |
Centrifugal |
Centrifugal |
|
Manufacturer: |
Interpump or Danfoss |
FEDCO |
FEDCO |
FEDCO |
FEDCO |
FEDCO |
|
Motor kW |
18,5 |
37 |
45 |
55 |
90 |
160 |
|
Energy Recovery Device |
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|
Type: |
Turbocharger |
Turbocharger |
Turbocharger |
Turbocharger |
Turbocharger |
Turbocharger |
|
Manufaturer: |
FEDCO or PEI |
FEDCO or PEI |
FEDCO or PEI |
FEDCO or PEI |
FEDCO or PEI |
FEDCO or PEI |
|
Cartridge filter |
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|
Filter quantity: |
1 |
1 |
1 |
2 |
2 |
4 |
|
Cartridge quantity each: |
1 |
1 |
1 |
1 |
1 |
1 |
|
Installation and utility requirements |
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|
Inlet: |
DN50 |
DN50 |
DN80 |
DN80 |
DN100 |
|
|
Permeate: |
DN40 |
DN40 |
DN50 |
DN65 |
DN80 |
|
|
Concentrate: |
DN40 |
DN40 |
DN50 |
DN80 |
DN100 |
|
|
Inlet water pressure (bar) |
2 |
2 |
2 |
2 |
2 |
2 |
