SolarSpring Membrane Distillation

A membrane material which is both hydrophobic and microporous separates the liquid from the distillate, but allows vapours to pass. The driving force for the distillation is a temperature difference, or partial vapour pressure respectively between an evaporator and a condenser channel. In between the hot and cold channel lies the distillate channel, which is separated from the other channels by a condenser film towards the condenser channel and a membrane on the evaporator side. As only vapours can pass the membrane a highly pure distillate is generated. The process operates at low temperatures of 35-95 °C and at ambient pressure, which reduces operational and maintenance costs.

Depending on the application, one of five different membrane distillation channel variants is implemented:

  • Permeate Gap MD (PGMD)
  • Direct Contact MD (DCMD)
  • Air Gap MD (AGMD)
  • Vacuum MD (VMD)
  • Vacuum Air Gap MD (VAGMD)

Advantages of MD-technology:

  • High chemical resistance towards corrosive or acidic process liquids
  • Maintenance friendly systems with simple component replacement
  • System integration into existing processes
  • Competitive economics compared to state of the art solutions

Cost reduction of your total process costs

Our drinking water filtration systems are a smart combination of 5 stages; an Ultrafiltration module, a sandfilter, a disk filter, an activated carbon stage and an Ultraviolet-Disinfection unit. Interaction between the stages is synchronized and fully automatic – self-sufficient cleaning cycles enable a constant and smooth operation. A cubic meter of drinking water only takes 0,3 kWh of electric energy to produce at an operating pressure at 2,5 bar.

Operating scheme SolarPurification

Night time operation is sustained by an AGM-Batterie which is charged during the day time through the solar panel and charge controller- all included in the package. For remote monitoring, a 3G module can be added to the Siemens Logo PLC so that you always have an eye on all the important parameters.