Pure Water Whisper 30, User Manual

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Whisper 30 integral, Modular, Handbook
In a Reverse Osmosis desalination system, most of the dissolved solids do not pass through the
Membrane but are instead carried along the membrane surface. This rejected water, referred to as
Brine , becomes increasingly more concentrated as it flows across the surface of the membranes and
is eventually piped to drain. The product water that flows through the membrane is referred to as
Permeate . The percentage of feed-water that enters the unit converted to permeate is called the
Recovery rate . A higher than optimal recovery rate (which can be obtained by increasing the back
Pressure on the unit above the recommended range) results in greatly increased membrane fouling
Rates and a significant decrease in the operational life of the membranes.
It should be noted that no system is capable of removing all 100% of the dissolved solids from
Seawater. Designed to reject approximately 99% of the TDS, the system allows 1% of the 32,000 ppm
TDS in the seawater to pass into the product water. This yields product water of less than 500 ppm,
the recommended TDS for drinking water. A system such as this is said to have a
salt passage of 1%.
2.0 Whisper 30 integral
2.1 The general scope of application for the WHISPER integral systems
You can use the WHISPER systems without restriction in all oceans around the world and in brackish
water areas. Take care in areas where sea water is contaminated with plankton. You must than check
the strainer more often.
Clogging of the strainer could cause the vane pump run dry and fail.
The advantages of the WHISPER systems are:

No pressure regulation, the system regulates the pressure by itself.

A whisper quiet system.

Because of the energy recovery a good balance of power consumption.

Integrated membrane, no high pressure hoses, compact installation.
Function
The heart of the system is the ETD ( E nergy T ransfer D evice)
The ETD produces out of a large volume of water with low pressure, high pressure, with a low volume of
water. The built in Energy recovery circuit pushes the ETD and saves energy by using the concentrate
back flow.
The advantage of this system is:
The system produces almost no noise.
No high pressure regulation is needed, the system regulates by itself.
It is a switch On/Off system.
New ceramic parts extend the time between overhaul.
More Water is pumped through the membrane which extends membrane life and increases water
quality.
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