Save the planet #2 – 4 start-ups serving the water crisis

Our world today is way different than the one we had a decade ago : turning the water off when brushing your teeth is not sufficient anymore.

Our needs of drinking water are considerably greater than the disposable quantity we have today. By 2025, according to the United Nations’ data, almost two thirds of the world population will live in regions facing deep problems of water.

To solve these problems, innovations are numerous as Green Techs comes up with  more and more ideas to avoid important ecological disasters such as penuries, diseases, war and big migrations.

Sea water desalination

97.5% of the total water on Earth is salted, therefore undrinkable and useless for industry and agronomy uses. Almost 2% of the drinking water is also inaccessible, trapped into glaciers or inaccessible groundwaters. Leaving us with less than 1% of the available clean water for the entire world’s population.

Water desalination seems to be a providential option, but still asks for pricy ressources in order to be really efficient.

Mascara Renawable Water managed to find a solution to this problem : “Osmosun”, a solar powered desalination unit. Solar panels are installed near the equipment. Thanks to the solar energy, the pomp recovers the salt water in the sea or in a well, pre-treats it and desalinates it. Then, the chlorination and remineralization phases begin.

Osmosun is the first desalination technology that doesn’t need a battery, is energy friendly, cheap and carbon dioxide-free.

Go higher and control watering

Irrigation in agriculture uses 70% of the drinking water available on Earth. The soaring demography lead us to an explosion of water needs.

In the next few years, to try and keep under control their water uses and avoid water wastes, farmers could monitor the moisture of their soils with a simple drone flight over their fields. Thanks to such system, they could effectively monitor specific water demanding zones and focus the irrigation on them, allowing them to save large quantities of water, usually poured on places that don’t really need it.

Microdrone society, laun,ched a series of drones created specifically to assist farmers. Provided with a camera and multispectral, thermal and lidar sensors, those drones are able to map any given field. They can estimate crop yields, monitor nutriment needs, moisture levels, the overall vigour and identify diseases, pests problems and hydric stress. With thermal mapping, it’s possible to identify places demanding the more water and target the watering efficiently. Some drones are even able to water the ground by themselves.


The first positive results of this surprising technology were demonstrated in Morocco. Recovering water from the fogs sounds, indeed, fascinating. This innovation allowed different Moroccan villages to obtain running water, where the inhabitants used to walk hours and hours to find the closest water source.

This initiative comes from Fog Quest, a society which first experimented in Chili, and different places of South America. The German firm Aqualonis also created its own system, and set up huge threads in the South West of Morocco.

This Cloud Fisher is the first fog-harvesting prototype able to resist winds exceeding 120km/h. In altitude and in front of a heavy frog, the threads catch and keep droplets. They are then treated and mixed with bore water and lead to villages thanks to canalisations systems. Kind of like a spider web, it imprisons the condensation of water.

This type of construction today is adaptable to any mountainous regions or regions close to the sea, sensible to fog formations. This system is a revolution in that feeling : being able to produce water even in the most arid regions.

Pure water, everywhere

Contaminated water is the biggest cause of diseases and deaths in the world. 158.500 litres of dirty water are spilled every second in the sea by boats and desalinations sites. In some countries, children have to drink water directly from sources contaminated by animals’ urines.

To address this problem, a great number of water purifiers have been invented. Generally very bulky and pricy,safe water is unfortunately not accessible to everybody, yet.

Sunwaterlife, a French company, developed an handy and useful system. The concept is easy to use and can be held in the only one hand : a purifier suitcase. This “mobile and autonomous water purification system” can be used with any sources of water.

Provided with solar panels, a small pomp and a filtration membrane, Sunwaterlife allows its users to turn dirty water into drinking water instantly. Created in 2014 for African regions, the firm now delivers its different purifier systems all over the world : Canada, United States, Chili, etc. They even opened themselves to the Asiatic market with Sunwaterlife Asia.

Those initiatives have a considerable impact on water preservation, a problem still underestimated nowadays.  In 2025 (only seven years from now), not less than 3.5 milliards of inhabitants could be affected by water shortages.

Credits : CC0 Licence

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