2019 | Sweden | Jonatan Persson

Evaporative desalination with industrial waste heat

Water issue adressed: Too little

One of mankind’s biggest threats is the ever growing water shortage. One way to solve this is cleaning seawater. Today 330 million people get their water from desalination plants, but conventional desalination is both expensive and energy demanding. Therefor I have developed a new way to desalinate seawater by utilizing water’s evaporative properties together with industrial waste heat, reducing the cost of cleaning 1000 liters of water to just 0.06€. Industries use 20% of freshwater around the globe so self sustaining factories through my invention would be a huge step towards securing the water supply in the future. I’m currently leading a full-scale pilot project in Sweden capable of cleaning 40.000 liters/day with a local smeltery.0

This is how I came up with the idea for this project:

I have developed a new desalination method that utilizes the waste heat from industries to clean seawater. I got the idea when i was 16 by watching a documentary called The Sahara Forest Project After watching this documentary I came up with a new evaporative desalination method

CONTACT WATERTANK

Ania Andersch

Programme manager ania.andersch@siwi.org +46 8 121 360 59