Feed water and operation specifications, Rejection, recovery and flow rates – AXEON R2-Series User Manual
Page 5
5
R2-Series User’s Manual
11/13/12
MKTF - 212
FEED WATER AND OPERATION SPECIFICATIONS
Nothing has a greater effect on a reverse osmosis system than the feed water quality
NOTE: IT IS VERY IMPORTANT TO MEET THE MINIMUM FEED WATER REQUIREMENTS.
FAILURE
TO
DO
SO
WILL
CAUSE
THE
MEMBRANES
TO
FOUL
AND
VOID
THE
MANUFACTURER’S WARRANTY.
NOTE: HIGHER TDS AND/OR LOWER FEED WATER TEMPERATURES WILL REDUCE THE
SYSTEM’S PRODUCTION.
REJECTION, RECOVERY AND FLOW RATES
R2-Series Reverse Osmosis Systems are designed to produce permeate water at the capacities
indicated in the “design basis section” on page 19 of this manual. For example, the R2-6140 produces
6.25 gallons per minute of permeate water at the listed operating test conditions.
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 formula:
% Rejection = [(Feed TDS – Product TDS) / Feed TDS] x 100
Example:
99.2% = [(10,000-80)/10,000] x 100
NOTE: ALL TDS FIGURES MUST BE EXPRESSED IN THE SAME UNITS, TYPICALLY
PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L).
R2-Series Reverse Osmosis Systems are designed to reject up to 99.2% NaCl, unless computer
projections have been provided or stated otherwise.