Membrane Recovery Cleaning - ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual

9) Enable membranes by holding down the enable membrane button for about 5 seconds
10) Allow membranes to permeate for 5 minutes, and then turn SV-801 solenoid valves back to
auto ("A")
11) Record TMP and flux, and ensure that the permeability has recovered
12) Repeat procedure for the second membrane module.

7.3.2 Membrane Recovery Cleaning

The membrane recovery cleaning is to be done once a year at a minimum. On certain
occasions, membrane cassette may need to be inspected for membrane integrity (suspect of
membrane deterioration, membrane permeability performance does not recover after the
cleaning, etc.).
Disable operation of the membrane tank by pressing the disable
membrane button on the screen.
For better cleaning performance, it is recommended:
Potable water is used
Water temperature is above 20
from 20 to 30 0 C)
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0 C (better cleaning efficiency if water temperature ranges
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