EcoWater ELC-1500, User Manual

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ELC
– Series User Manual
MKTF
– 506-A
7 03/18
REJECTION, RECOVERY AND FLOW RATES
E
LC
– Series Reverse Osmosis Systems are designed to produce permeate water at
the capacities indicated by the suffix in the system’s name under the conditions listed
above. For example, the ELC
– 750 system produces 750 gallons per day 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 percentage of
rejection, use the following formula:
% Rejection = [(Feed TDS
– Product TDS) / Feed TDS] x 100
Example:
98.5% = [(550
–
8.25) / 550] x 100
ALL TDS FIGURES MUST BE EXPRESSED IN THE SAME UNITS, TYPICALLY
PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L).
ELC
– Series 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
calculate the percentage of recovery, use the following formula:
% Recovery = (Product Water Flow Rate / Feed Water Flow Rate) x 100
Example:
50% = (1.02 / 2.04) x 100
ALL FLOW RATES MUST BE EXPRESSED IN THE SAME UNITS, TYPICALLY
GALLONS PER MINUTE (GPM).