Table 1.
FS and DS, osmotic pressure difference ∆π, and membrane orientation of the six experimental test series (A1–A6) and the performance tests (P).
| Test Series | Feed Solution (FS) | Draw Solution (DS) | ∆π [bar] | Membrane Orientation | |
|---|---|---|---|---|---|
| ALFS | ALDS | ||||
| A1 | Cathodic dip painting rinsing water | 1 mol/L NaCl | 44.8 | ✓ | - |
| A2 | Deionized Water (DI) | Cooling tower circulation water | 1.1 | ✓ | - |
| A3 | Paint shop pre-treatment wastewater | 1 mol/L NaCl | 44.5 | ✓ | - |
| A4 | Deionized Water (DI) | Cathodic dip painting wastewater | 2.1 | ✓ | - |
| A5 | Deionized Water (DI) | Cooling tower circulation water | 1.1 | - | ✓ |
| A6 | Cathodic dip painting wastewater | 1 mol/L NaCl | 43.5 | ✓ | - |
| P | Deionized Water (DI) | 1 mol/L NaCl | 44.5 | ✓ | - |