TM 55-1925-282-14&P
OPERATOR, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE
REVERSE OSMOSIS WATER PURIFICATION UNIT FOR
INLAND AND COASTAL LARGE TUG (LT)
Brine
Water saturated with or containing large amounts of salt.
Chlorine
Chlorine is a disinfectant which wipes out bacteria and is added
to most all municipal water systems.
Desalination
The purification of salt or brackish water by removing the
dissolved salts. Desalination is typically accomplished by the
ROWPU.
Media Filter
the media filter removes suspended particles 30 micron and
larger from the raw water.
Media
The selected materials in a filter that form the barrier to the
passage of certain suspended solids or dissolved molecules.
Micron
A linear measure equal to one millionth of a meter, or
0.00003937 inch.
Membrane Elements
Thin films constructed of cellulosic or synthetic materials, which
are designed to provide selective transport of solutes. The
membrane element is one of the two basic main requirements
of the ROWPU.
Osmosis
The natural tendency of water to pass through a semi-
permeable membrane, so as to equalize concentrations on both
sides of the membrane.
Potable water
Water, which is considered safe and fit for human
consumption, culinary, and domestic purposes. Potable water
is the end result of the ROWPU.
Raw Water
Untreated water, or any water before it reaches the ROWPU.
ROWPU
Reverse Osmosis Water Purification Unit.
Salinity
Generally, the concentration of mineral salts dissolved in
water.
Solutes
A dissolved substance.
Suspended Solids
Particles less than one micron in diameter.
Semi-Permeable
An ultra filtration membrane, which allows the passage of some
molecules and prevents the passage of others.
Total Dissolved Solids (TDS)
In drinking water, a measure of calcium, magnesium, and other
dissolved mineral salts.
END OF WORK PACKAGE
Glossalrys- 1/ry-1ank
G o sa 2 bl