| General |
MSI offers packaged Seawater RO Systems using the latest in membrane
technology and state-of-the-art control systems. Capacities range
from 50 - 300 m3/day (9 - 55 gpm), Permeate Recovery 30-45%
and Operating Pressure
55 - 83 Barg
(800 - 1,200 psig)
Note:
Rated capacities are based on 35,000 ppm seawater @ 25 oC (77
oF), operating pressure of 55-69 Barg (800-1000 psig) and
Permeate Recovery 30-45%, depending on system size.
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Description |
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Type |
Packaged Seawater RO
Systems (SWRO) |
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Usage |
Seawater
Desalination |
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Applications |
Drinking water, Process, Industrial |
|
Equipment |
The Packaged
system is skid mounted and self contained. The High Pressure
Pump (HPP), Micron Filter, Low and High Pressure Piping as well as
the Instrumentation and Controls are all mounted on the
skid. Local Control Panel (LCP) and Motor Starter Panel (MSP)
are also mounted on the same skid. Cleaning
System can be mounted on the SWRO frame or furnished as a separate
skid. Up
to Three Chemical Pretreatment and Post Treatment Systems are
provided as standard feature, and can be mounted on the SWRO frame
or provided separately. |
|
Capacity |
Model |
Permeate
Flow |
Weight |
Dimensions
(LxWxH) |
| gpd |
m3/d |
lb |
kg |
ft |
meters |
| S-50 |
13,200 |
50 |
770 |
350 |
10x4x6 |
3x1.5x2 |
| S-100 |
26,400 |
100 |
1,650 |
750 |
10x4x6 |
3x1.5x2 |
| S-150 |
39,600 |
150 |
2,430 |
1,100 |
22x4x6 |
7x1.5x2 |
| S-200 |
52,800 |
200 |
2,870 |
1,300 |
22x4x6 |
7x1.5x2 |
| S-250 |
66,000 |
250 |
3,750 |
1,700 |
22x4x6 |
7x1.5x2 |
| S-300 |
79,300 |
300 |
3,970 |
1,800 |
22x4x6 |
7x1.5x2 |
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Features |
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Pretreatment |
Micron
Filter and up to Two of Chemical injection systems are provided as
standard feature. Clarifiers and/ or Media Filters are
optional. |
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Main
Treatment |
Reverse Osmosis (RO)
Membrane
Separation System, using high rejection RO membrane elements |
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Post
Treatment |
Up to One Chemical
Treatment System is provided. UV Sterilizer, Ozonation or
Post Chlorination are optional |
| Supporting
Equipment |
A dedicated Cleaning
System is provided. Depending on membrane system
capacity, the cleaning system could be mounted on the RO support
structure or on a separate skid |
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Instruments |
Locally
mounted primary elements, Monitoring and Control Instruments are mounted on the
Local Control Panel (LCP) |
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Controls |
PLC based
microprocessor, located inside
the LCP |
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Advantages |
|
Design |
1.
Reliable, high quality components
2. Excellent corrosion resistance
3. Compact, small equipment footprint
4. Conservatively designed for consistent, trouble free
operation |
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Operations |
Reliable;
slow start; safety interlocks; lower capital and operating cost |
|
Performance |
Product
water TDS content of less than 500 mg/l per WHO standards. |
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Components |
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Pretreatment |
1. Chemical Treatment: Antiscalant and/ or Acid injection
systems.
2. Micron Filtration: 5 micron Cartridge filters in
FRP or 316SS Housing. |
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Main
Treatment
(RO Unit) |
RO High Pressure Pump
(HPP)
Multistage
Centrifugal or Positive. Displacement Plunger type. Discharge
pressure up to 1,200 psig. |
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1. Membrane
Elements: TFC
High Rejection, High Flux 4" or 8" x 40" (D x L)
2. Pressure Vessel Assemblies: FRP rated for 1,000-1,200
psig, housing the membrane elements.
3. Support structure Structure: FRP or CS epoxy painted or
powder coated, supporting the pressure vessel assemblies |
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Piping |
1. Train mounted High Pressure
piping: Fabricated of Sch 40 high
grade SS, Duplex, AL6XN or 245SMO alloy steel
2. Train mounted Low Pressure piping: Fabricated of Sch 10
316L SS or Sch 80 PVC |
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Valves |
1. Control Valves: Modulating, with
Pneumatic or Electrical Actuator
2. Auto Isolation Valves: Pneumatic or Electrical operator w/ Auto On-Off
control
3. Manual Valves: SS or Plastic, as required |
| Instruments |
Provided for
continuous monitoring and/ or control of Flow, Pressure, Temperature,
Level and Analytical parameters, such as pH, Conductivity, ORP,
Turbidity, etc. |
| Controls |
Programmable
Logic Controller (PLC), mounted inside the Local Control Panel (LCP) |
| Electrical |
Skid mounted
Local Starter
Panel (LSP), Junction Boxes and Miscellaneous hardware |
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Options |
1.
Media
Filters
2. UV Sterilizers, Ozonators or Chlorinators
3. Energy Recovery Turbine (ERT)
4. Adjustable Frequency Drive (AFD) for the High Pressure
Pump (HPP)
5. Data Acquisition and Monitoring System (DAQM) |
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