3M MEMBRANA Liqui-Cel, Инструкция по уборке

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10
Liqui-Cel
®
Membrane Contactors Cleaning Guidelines
VI. Cleaning Protocol for Biological Fouling Removal
WARNING
To reduce the risks associated with explosion:

Never exceed maximum temperature and pressure ratings. Detailed
temperature and pressure ratings can be found in the Operating Guide at
www.3m.com/liqui-cel .

If cleaning the shellside of the membrane only, the lumenside should be open
to atmosphere.
To reduce the risks associated with chemical exposure:

Use face protection, protective gloves, and appropriate eye protection when handling
and using all cleaning chemicals.

Ensure any tubing or piping used to circulate the cleaning solution is not blocked,
kinked, frayed, cracked or obstructing flow in any way. Ensure the all tubing and
piping connections are leak-free.

Avoid splashing of chemicals while preparing cleaning solutions or during pumping of
solutions.

Cleaning procedures should be conducted using the minimal temperatures and
pressures required to clean the contactor.
CAUTION
To reduce the risks associated with hot surfaces:
Do not touch the membrane contactor during a hot sanitization cycle and allow
enough time for the surface of the membrane contactor to cool.
To reduce the risks associated with environmental contamination:
At the end of useable life, dispose of the membrane contactor or cartridges in
accordance with local regulations and laws.
To reduce the risks associated with damaging the membrane contactor:

For all 2.5x8-inch, 4-inch and 10-inch membrane contactors, gas side pressure should
never exceed liquid side pressure during cleaning.

Do not expose the membrane to air when liquid or gas temperatures exceed 30° C.
NOTICE

Avoid contact with surfactants/solvents or oxidants (e.g. ozone, chlorine) to the
hydrophobic membrane to prevent wet-out or oxidation.

Filtered, de-chlorinated, and deionized water is recommended for mixing
cleaning solutions. Water containing metals such as Mg, iron, Al, and SiO2
may precipitate on to the membrane surface when there is a pH shift in the
water.