From CORDIS:

Objective: This proposal is addressed to the development and on site assessment of a fully autonomous solar reactor system to drinking water purification in semi-arid areas of the Mediterranean basin. The scientific and technological required developments will be based on photocatalytic generation of hydroxyl radicals and sing let oxygen species, by using sunlight, to detoxify and disinfect contaminated (at trace level) drinking water respectively. Detoxification system will use TiO2 supported catalyst and desinfection system will be generated by supported sensitizers photoactivated by solar light. Final development system is expected to have remarkable technical features as well as social, development and environmental implications in Mediterranean countries.