Internally Stage Design - Du Pont (DOW membranes)

Hi

Does anyone have experience in Du Pont's internally Stage Design concept for 1st pass SWRO membrane design. Their projection results show, 'short element and long element'.  What does this mean?

Taxonomy

• Membrane Technology
• Technical Training
• Sea Water Desalinisation

3 Answers

1. normally short element is the membrane element, and long element is the PV ( pressure vessel ) each manufacture have their own type of nomenclature. 

   double check 

2. Input and Output water Quality and the Quantity of output water are required to do the basic process design.  

3. Hi Anvar, 

   for internal stage design concept, the elements used for all the position shall be of the same diameter and length. 

   My guess is that you have selected membrane elements of different dimensions.

   Regards,

   Junfeng