I would not be able to jump ...

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I would not be able to jump to a conclusion on the underlying reason for such failure as its not so simple. Few more questions would help pinpoint to the problem.

1. What is the configuration of the RO system? such as 3-2-1/6M 4/2/1/4M?

2. Which end of the membrane shows damage - feed or conc?

3. Is the separation appear to break where the feed/exit ATD is glued to the membrane?

4. What kind of fouling you see (iron, scale, etc.)

5. Do you see any telescoping, which would be visible on face of spiralwound..

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Hello DILEEP,

Thank you for your asking!

please take my answers at below:

1-This is NF skid not RO, Nano membrane type is DK8040F30 (Desal SUEZ), it configs 3 loops, 4 vessels/loop and 6 elements/vessel.

2-Most damage comes from feed side;

3-Yes;

4-i saw a sticky layer around the membrane casing;

5-No.

i am looking forward to hearing from you soon.

Regards, 

Hieu

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