| Method | Concept | Cost ($/m3 brine) | Ecological troubles |
| Sewer discharge | Brine rejection occurs in a sewage collection unit. | 0.32 - 0.66 | Bacterial growth is inhibited in WW treatment plants. |
| Evaporation pond | Brine evaporation occurs in a pond, and the remaining salt is gathered. | 3.28 - 10.04 | Groundwater is polluted, and soil can be salinized. |
| Surface water discharge | Brine rejects into surface water. | 0.05 - 0.30 | The marine environment can be polluted. |
| Deep-well injection | Brine rejection occurs in perforated subsurface rock formations. | 0.54 - 2.65 | Groundwater is polluted, and soil can be salinized. |
| Land application | Brine is employed in the irrigation of salt-tolerant crops and grasses. | 0.74 - 1.95 | Soil can be salinized. |