Research Article
Hydraulic Performance Modifications of a Zeolite Membrane after an Alkaline Treatment: Contribution of Polar and Apolar Surface Tension Components
Table 1
Evaluation of the hydraulic permeability from pure water filtration tests performed before and after an alkaline treatment.
| Membrane | calcination | Hydraulic permeability | Nature of the treatment | Hydraulic permeability | Ratio | (°C) | () | () |
| M1 | 300 | | Na2CO3—6.6 mM | | 0.67 | M2 | 300 & 400 | | Na2CO3—6.6 mM | | 0.86 | M3 | 400 | | Na2CO3—6.6 mM | | 0.76 | M4 | 500 | | NaOH—0.1 mM | | 0.90 | M5 | 400 | | Na2CO3—6.6 mM | | 0.61 |
| Tests performed after two acid HCl—12 mM/base treatments for M3 | M3 | 400 | | Na2CO3—6.6 mM | | 0.56 | M3 | 400 | | Na2CO3—6.6 mM | | 0.78 |
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