Multi Effect Distillation
Multi Effect Distillation is a unit operation, It Helps to reduce TDS at very high Concentration.
Process Description :-
Multiple-effect distillation or multi-effect distillation (MED) is a distillation process often used for sea water desalination. It consists of multiple stages or “effects”. In each stage the feed water is heated by steam in tubes, usually by spraying saline water onto them. Some of the water evaporates, and this steam flows into the tubes of the next stage (effect), heating and evaporating more water. Each stage essentially reuses the energy from the previous stage, with successively lower temperatures and pressures after each one. There are different configurations, such as forward-feed, backward-feed, etc. Additionally, between stages this steam uses some heat to preheat incoming saline water.
Target Impurities :-
- TDS
- Free Radical Ions
Advantages :-
- For any dissolved salts Rejection upto very 99.9%.
- Quality of treated water is very good.
- Low Opex cost
