Ion Technologies IT- DS05-S - 4.3.4 Cleaning or Sanitizing with Peracetic Acid

IONTECH
®
IT-DS EDI Modules
Chemicals necessary
for Step 4
(
5% NaCl
)
IT-DS05-S IT-DS10-S IT-DS20-S IT-DS30-S IT-DS50-S
Water (RO permeate or
CEDI prod)
12 gal
(45
liters)
24 gal
(90
liters)
36 gal
(135
liters)
60 gal
(225
liters)
90 gal
(335.5
liters)
Sodium chloride (NaCl)
5 lbs
(2.25 kg)
10 lbs
(4.5 kg)
15 lbs
(6.8 kg)
25 lbs
(11.4 kg)
37.5 lbs
(17 kg)
1.
2.
3.
4.
5.
6.
Remove product and reject outlet lines from the cleaning tank, and direct to drain. Fill
the tank with the water.
Dissolve the sodium chloride (NaCl) in the water.
Start the cleaning pump and flush to drain for about three minutes. Turn
off the cleaning pump.
Drain the tank.
STEP 5: Water Flush to Drain
This step flushes the cleaning solution out of the system, and prepares the system for return to
operation.
1.
2.
3.
Close the cleaning pump discharge valve. Keep product and reject lines directed to drain
and disconnect the cleaning equipment from the module.
Turn on the feed water supply to the system. Slowly open the feed valve to allow RO
product water to flow through the module to drain.
After flushing all residual cleaning solutions from the system, follow the initial start-up
procedures in Section 3.5 of this manual. Start without the DC power applied to the
VNX module for five minutes and then restore normal DC power.
4.3.4 Cleaning or Sanitizing with Peracetic Acid
Peracetic Acid is a mixture of corrosive chemicals. Avoid contact with
these chemicals.
Do not run a sanitization solution through the system when DC power is
applied to the IT-DS module.
Flush the IT-DS module with a 5% Sodium Chloride (NaCl) solution both before and after Peracetic
Acid sanitization. The initial NaCl rinse removes any metal ions, particularly calcium, and
magnesium ions from the module.
The sanitization procedure for sodium Peracetic Acid involves five steps:
1.
2.
3.
4.
5.
An initial salt flush
A water flush
The Peracetic Acid cleaning
A second salt flush
A final water flush
STEP 1: Initial Salt Flush To Drain
This initial 5% NaCl rinse removes any metal ions, particularly calcium and magnesium ions, from the
module.
29 IT-DS MAN Rev 0