lease refer to the following diagram to examine recommended feed flow rates for the crossflow cell you are working with.

 

Post use, the membrane should be rinsed with water after testing and stored in clean water if the storage duration will be less than 24 hours.  If the membrane is rinsed with water and expected to be stored for longer than 48 hours, it is recommended to use a 1% sodium metabisulfite (SMB, chemical formula Na2S2O5) to prevent bacterial growth from occurring. Periodically inspect the membranes for biological growth. If the preservative solution is cloudy you need to replace it.  Renew the preservative solution every month.

Feed spacers are used to mimic the hydrodynamic conditions of large-scale membrane modules by changing the flow regime and creating turbulence inside the feed channel of our membrane test cells.   

For more information on feed spacers incorporated into our test cells, please visit here.

Membranes should be stored in the fridge. Do not allow to freeze. Membranes should be stored away from sunlight.