Cleaning and storage information only for Vivaflow 50R
and Vivaflow 200
Cleaning
Vivaflow 50R and 200 modules may be
used several times if cleaning and storage
instructions are followed.
1. Flush the system with 200 ml of deion-
ised water with the filtrate going
to waste.
2. Place the feed, return and filtrate lines
in a suitable container for the cleaning
solution.
3. Prepare cleaning solutions suitable for
the membrane.
I. Polyethersulfone membranes:
250 ml of 0.5 mM NaOCl in 0.5 M NaOH
II. Hydrosart membranes: 250 ml of
0.5 M NaOH
4. Recirculate at 50–100 ml/min for
30–40 minutes.
5. Drain the system and recirculate 250 ml
of deionised water through the system for
5–10 minutes.
6. Drain and discard rinse solution and
flush with a further 500 ml of deionised
water with the filtrate going to waste.
The system is now ready for further use.
Storage
To store Vivaflow 50R and Vivaflow 200
after cleaning, fill module with deionised
water and 10% ethanol. Seal inlet, outlet
and filtrate ports and refrigerate at
approximately 4°C.
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