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Ennesys developed a method for treating organic waste and wastewater by cultures of microalgae, which produces, at the end of cycle, an algal biomass that is converted into energy. Microalgae are seeded in a medium consisting of wastewater, CO2 and organic waste from buildings and will act as cleaning agents by feeding themselves from pollutants. Cultures are in closed basins, and are installed on roofs, terraces or facades of buildings to take no space on ground or public area. After harvesting, the algae are separated from the culture medium. One then obtains, on the one hand, purified water that may be used for irrigation or cleaning; secondly, an algal biomass with the same calorific value as coal. This method can be deployed on all types of new buildings or be embedded in FreeWaterBoxes (Ennesys compact system designed to be integrated into "plug & play" containers) to equip remote sites, archipelagos, working camps, or life refugee camps… Besides the principle of circular economy on which the Ennesys systems work, intelligence of this innovation is to enable monetization of waste in two high-value resources: water and energy. An approach that puts Ennesys into the heart of energy transition and takes into account three social and environmental major challenges: reducing the carbon footprint, water supply and concomitant energy production.

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Related activities :

Energy, chemistry, materials

Export area :


Near and Middle East

North Africa

North Asia


South America

South Asia

Sub-Saharan Africa

Local presence :

North Asia

South America

South Asia

Target countries :

North Asia

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Flyer Ennesys 4p

Presentation of Ennesys technology applied to sustainable building.

Tags: ennesys, microalgae, wastewater, energy, sustainable building, green city


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