Rejection, Recovery & Flow Rates
The Penguin Water Whole House RO reverse osmosis system is designed to produce
permeate water at the capacities indicated by the suffix in the systems name under the
conditions listed above. For example, the PWCRO-4000 produces 4000 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 sol-
ids do not pass through the membrane. To calculate the % rejection, use the following for-
mula:
•
% 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, TYPICALLY
PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L).
The Whole House RO reverse osmosis system is 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 calcu-
late % recovery, use the following formula:
•
% Recovery = (Product Water Flow Rate / Feed Water Flow Rate) x 100
• Example: 40% = (2.78 / 7.0) x 100
NOTE: ALL FLOW RATES MUST BE EXPRESSED IN THE SAME UNITS, TYPICALLY
GALLONS PER MINUTE (GPM).
17
Summary of Contents for PWCRO
Page 1: ...Penguin Water Whole House RO 224 PWCRO XXXX ...
Page 11: ...20 UV Controller Monitors the UV light performance and bulb life 11 ...
Page 30: ...30 ...
Page 41: ...Membrane Flow Overview 41 ...
Page 42: ...42 ...
Page 43: ...43 ...
Page 44: ...44 ...
Page 47: ...System Flow Diagram 47 ...
Page 48: ...48 ...
Page 49: ...49 ...
Page 50: ...50 ...
Page 51: ...Typical System Layout 51 ...
Page 56: ...Electrical Schematic 56 ...
