GE E4-2200, Operation And Maintenance Manual

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An example of how to calculate salt rejection and recovery is given below.
Figure 4. Principle of Operation
Given the system case in the figure above:
Average Concentration,
2
C C
C c f
Avg


TDS 237.5mg/L
2
375mg/L 100mg/L



% 5 . 96 100
237.5mg/L
8.3mg/L 237.5mg/L
100
C
C C
Rejection
Avg
p Avg
 

 


% 5 . 3 100
237.5mg/L
8.3mg/L
C
C
Passage
Avg
p
   
% 75 100
24gpm
18gpm
100
Q
Q
Recovery
f
p
    
1.2. Machine Nomenclature
E-Series water purification machines are numbered in such a way as to indicate the
permeate flow you can expect from the machine and other specifications.
Example: RO,E4-4400-DLX,460,6,HR(PA)

RO indicates the machine is a reverse osmosis machine.

E4 indicates the machine series (E) and 4-inch housings/membrane elements

4400 indicates the rated permeate flow in thousands of gallons per day at 77

F
(25

C), i.e. 4400 = 4400 gallons per day

DLX indicates the deluxe model and ECN indicates the economy model

460 indicates 460 VAC, 3-phase voltage to starter. Standard models offer 460
VAC, 60 Hz, 3-phase and 380 VAC, 50 Hz, 3-phase.

6 indicates 60 Hz operation, (50 Hz operation is also available and is indicated by
a 5 in place of the 6 .