High-flux cellulose acetate membranes
Three routes to increase the permeate flux of asymmetric cellulose diacetate membranes of the Loeb-Sourirajan type were investigated: increasing the hydrophilicity of the membranes; increasing their compaction stability, and employing a swelling agent which allows for higher solvent-to-polymer ratio in the casting solution. The effect of casting solution composition on flux and rejection of formamide-modified cellulose acetate membrane is included, illustrating the general capability of this membrane type as function of solvent concentration. Membranes of casting solution composition cellulose diacetate/acetone/formamide 23/52/25 were used as reference membranes in the work. 6 figures. (DP)
- Research Organization:
- GKSS-Forschungszentrum, Geesthacht, Germany
- OSTI ID:
- 6237378
- Journal Information:
- ACS Symp. Ser.; (United States), Journal Name: ACS Symp. Ser.; (United States) Vol. 153; ISSN ACSMC
- Country of Publication:
- United States
- Language:
- English
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