The Diffusion of Phytotechnological Floating Treatment Wetland Technology in Integrated Watershed Management in the City of Johannesburg, South Africa

The biggest threat to the sustainable supply of water in South Africa is not the lack of water storage facilities, but the contamination of available water resources through pollution. The development of new technologies that address problems with anthropogenic origins will therefore play a major role in securing a sustainable future and addressing problems regarding water supply, such as water quality and security. These technologies, also termed eco-innovations or green infrastructure, diffuse slowly into society. Understanding this process of the diffusion of green infrastructure, and particularly of floating treatment wetlands, is crucial, as it is usually slow and its path unclear.