The technology is based on vapor filtration, where the impure water is first heated and made to vaporize, then water vapors are filtered through a thin sheet of porous hydrophobic membrane.
The water vapors are collected on the other side of the membrane and cool down using external cooling water loop. Due to the two consecutive stages in the one unit, the product water has higher quality than obtained from any other related technologies.
In addition to the highest quality, this technology has advantages of:
- minimum running cost due to the use of the waste heat
- removing all types of impurities (heavy metals, bacteria, inorganic ions, organic substances and so on…) giving nearly absolutely clean water
In addition to the pure drinking water, a WaterApp unit connected to a Genset as shown above can be used to supply warm water for showering, laundry and so on in a house.
Removal efficiency test results for some pollutants in water
|Type of contamination||Amount in feed||Result||Detection limit||Aalysis method||Analysed by|
|Bacteria||14000(after 7 days)||BDL||–||Membrane filter count||National Bacteriologic Laboratory, Stockholm|
|Chlorine||3.4 mg/L||BDL||<0.01 mg/L||Photometric analysis (Perkin Elmer)||Water protection Assoc. of South West Finland|
|Salt water||31000 ppm||BDL||<1 ppm||Ion Chromatography||VBB Viak Stockholm|
|Trihalomethanes||1000 mg/L||BDL||<1mg/L||Gas Chromatography||University of Turku, Finland|
|Arsenic +3||10 mg/L||BDL||<0.003 mg/L||AAS||Analytica AB, Stockholm|
|Arsenic +5||10 mg/L||BDL||<0.003 mg/L||AAS||Analytica AB, Stockholm|
|Ag nanoparticles||3100 mg/L||BDL||<2mg/L||HPLC||IVL Swedish Environmental
|Sertraline and 20 other Pharmaceutical residues||4 ng/L||BDL||<0.8ng/L||HPLC||IVL Swedish Environmental