Abstract
Among the causes of the disruption of aquatic ecosystems, pollution and the development of invasive alien species are worrying facts. This article presents natural solutions to preserve water resources in the face of these problems through an interdisciplinary approach combining a strong and sustainable support to the management of invasive alien aquatic plants, an early depollution of industrial effluents using biosorbent plant filters, a solution to avoid the formation of undesirable industrial sludges, and a chemical and economic valorization of the implemented phytotechnologies.