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Fog Catchers

Project new technologies that create clean water for a thirsty world

Project Reference ID
Project new technologies that create clean water for a thirsty world
Category of Product (MRDCS 1)
Field of Research
Description of Product / Technology

Imagine producing water out of thin air. Now image doing so at the drought-ridden border of the Sahara Desert. It may seem crazy, but the largest fog collection system in the world is doing just that- harvesting moisture in a region undergoing rapid desertification.

After 10 years of research, approximately 500 people in southwest Morocco are currently receiving their water from the heavy fogs that decorate the mountainous landscape.

These thick fogs come from the oceans and get stuck between the mountains for about 140 days a year, making it an ideal spot to set up the incredible project, which spans 600 square meters.

The technique used, which some call “cloudfishing” uses a very fine mesh to gather tiny droplets of fog (1 to 40 millionth of a meter). Once they are heavy enough, these accumulated droplets fall into a basin. The water is then filtered with solar powered UV, sand, and cartridge filters, and then piped to 140 households in the nearby villages. An average of 6,000 liters of water is gathered daily.

This project is significant for a number of reasons. First, the Anti Atlas region of Morocco has been experiencing extreme climate change-induced droughts and rapid desertification, making water collection increasingly more difficult. Second, water collection is a burden carried by the women of these communities who spent almost half their days seeking and carrying water. Thanks to fog-harvesting technology, these women have more time to spend with their families and in pursuit of economic activities, such as those surrounding the argan oil industry.

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