What are the values of water and salt permeabilities in common reverse osmosis membrane for desalination ? (filmtec membranes for instance)
I need precise values as much as possible.
Thank you.
Dear Abdeljalil Chougradi you can check links below:
http://www.stc-clips.org/wp-content/uploads/2011/03/1-s2.0-S0376738810009233-main.pdf
https://www.omicsonline.org/open-access/effect-of-different-salts-on-mass-transfer-coefficient-and-inorganicfouling-of-tfc-membranes-2155-9589-1000175.pdf
Khalid
I think you can find this from an operation manual from the manufacturer of the membranes. The values should be defined at a specific pressure and temperature, and at a specific concentration of NaCl in the experiments. For real values for sea waters, they will vary according the conditions.
For the permeate TDS level would be approximately around 1000 mg/L or so based on the in-fluent conditions. The recovery should be around 60% or more.
If the seawater TDS level is approx. 25000 mg/L then reject of RO will have TDS level of 33000 mg/L or approx. with the above-mentioned efficiency.
- Badges
- Science topic
- Similar topics
- Engineering
- Chemical Engineering
- Membranes