US Water Systems L1-200, Руководство пользователя

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6 REVISION 1.0, 1-19-15
REJECTION, RECOVERY AND FLOW RATES
US Water Systems 300 GPD Reverse Osmosis Systems are designed to produce perme-
ate water at the capacities indicated by the suffix in the system’s name under the condi-
tions listed above. For example, the US Water Systems 300 GPD Reverse Osmosis Sys-
tem produces 300 gallons per day of permeate water at the listed operating test condi-
tions.
The amount of total dissolved solids (TDS) rejected by the membrane is expressed as a
percentage. For example, a 98.5% rejection rate means that 98.5% of total dissolved solids
do not pass through the membrane. To calculate the % rejection, use the following formu-
la:
% Rejection = [(Feed TDS – Product TDS) / Feed TDS] x 100
Example:
98.5% = [(550-8.25)/550] x 100
NOTE: ALL TDS FIGURES MUST BE EXPRESSED IN THE SAME UNITS, TYPI-
CALLY PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L).
US Water Systems 300 GPD Reverse Osmosis Systems are designed to reject up to
98.5% NaCl, unless computer projections have been provided or stated otherwise.
The amount of permeate water recovered for use is expressed as a percentage. To cal-
culate % recovery, use the following formula:
% Recovery = (Product Water Flow Rate / Feed Water Flow Rate) x 100
Example:
28% = (0.14/0.50) x 100
NOTE: ALL FLOW RATES MUST BE EXPRESSED IN THE SAME UNITS,
TYPICALLY GALLONS PER MINUTE (GPM).