Basic Layout

Membrane distillation is a membrane seperation/concentration process which has vapor pressure (temperature) gradient/difference between the feed and the permeate side of a hydrophobic membrane as the driving force for the process, in other words, membrane distillation is a thermally driven sepration process in which sepration is enabled due to phase change. A Hydrophobic membrane acts as a barrier for the liquid phase , letting the vapor phase ( e.g. water vapor) pass through the membrane's pores.
In simple terms heated salt water (feed) flows across one side and chilled salt free water (permeate) flows across the other side of a hydrophobic membranes at pressure less than the breakthrough pressure of the membrane since it is hydrophobic.

Specifications

Membrane Area : 1000 cm Square
Feed Characteristics

1. Temperatire Range : 20 - 90 Degree C
2. Recirculation Flow rate: 0.1 -1 gallon/ min (up to 10 gallon/min can be made)
3. Pressure Range : 1- 120psi
4. Maximum concentration : 200000 ppm of NaCL equivalent
5. PH Range: 1.5-13 (may vary based on membrane used)
6. Feed Tank Volume: 5 liter standard (up to 50 liter possible)

Permeate Characteristics

1. Temperatire Range : 5 - 30 Degree C
2. Recirculation Flow rate: 0.1 -1 gallon/ min (up to 10 gallon/min can be made)
3. Pressure Range : 1- 120psi (vacuum or sweeping gas optional)
4. Maximum concentration : 1000 ppm of NaCL equivalent
5. PH Range: 5-9 (may vary based on membrane used)
6. Feed Tank Volume: 5 liter standard (up to 50 liter possible)