INNOQUA is a Horizon 2020 EU-funded project involving 20 partners that seeks to demonstrate in real conditions a modular system for water treatment based on the purifying capacity of biological microorganisms (earthworms, zooplankton and microalgae). The configuration of the system will be adjusted according to the targeted markets in order to answer the most possible market needs. The final objective of the project is to provide an ecological water sanitation system for rural areas and communities, for industries with specific characteristics (such as agriculture and aquaculture), for sustainable home-builders or collective housing owners and for developing countries worldwide. Under the coordination of Nobatek, a renowned French Research and Technology Organisation, 20 partners from 11 countries located all over the world are working on the integration of the different technologies into a single modular system, its testing and demonstration in real conditions.