Sea Recovery SRC Ultra Whisper Compact 200 Owner's Manual page 26

Sea Recovery's
Approach to Water Desalination:
The Challenge:
Concentrated
with
Dissolved Solids
Osmosis is the diffusion of two mixable solutions through a
semi permeable membrane in such a manner as to equalize
their concentration. This diffusion occurs by allowing a
lesser concentration, potable water, to naturally diffuse
through a semi permeable membrane into a higher
concentration, sea or brackish water.
Sea water or brackish water is a high concentration
solution. Potable water is a low concentration solution.
Therefore, sea water or brackish water cannot naturally
diffuse through a semi permeable membrane to provide
potable, drinking water.
The Solution:
Pressure
Concentrated
with
Dissolved Solids
Reverse Osmosis, overcomes this natural phenomenon. By
forcing sea or brackish water at high pressure through a
semi permeable membrane potable water is realized.
Reverse Osmosis Desalination Systems by Sea Recovery
make possible the once impossible, potable water from
undrinkable water sources.
SPIRAL-WOUND REVERSE OSMOSIS MEMBRANE
Pure
Water
Pure
Water
Section 1 Page 3 of 16
ELEMENT:
(larger illustration on the following page)
The spiral-wound membrane consists of one or more
membrane envelopes each formed by enclosing a
channelized product water carrying material between
two large flat membrane sheets. The membrane
envelope is sealed on three edges with a special
adhesive and attached with the adhesive to a small
diameter pipe to form a cylinder. A polypropylene
screen is used to form the feed water channel between
the membrane envelopes. A wrap is applied to the
membrane element to maintain the cylindrical
configuration. The center tube is also the permeate
(product water) collecting channel. Several elements
may be connected in series within a single or multiple
pressure vessel(s).
Sea Recovery Ultra Whisper Rev. A