upstream
in membrane processes
Copy
https://doi.org/10.1351/goldbook.UT06882
Side of a membrane into which penetrants enter from the feed stream.
Source:
PAC, 1996,
68
, 1479. 'Terminology for membranes and membrane processes (IUPAC Recommendations 1996)' on page 1485 (https://doi.org/10.1351/pac199668071479)