Solaqua is a water disinfection unit to be used in rural sub-Saharan Africa. It utilises ultra-violet and infra-red rays from the sun to eliminate pathogens within contaminated water. Raw water is first passed through a sari cloth filter to improve efficiency of solar water disinfection (SODIS). A five tap funnel fills five specially designed bottles to obtain ten litres of water. By spreading and laying the bottles on the ground, the transparent bottle surface allows maximum exposure to UV rays. The black, back surface of each bottle absorbs heat, while reflective inner surfaces reflect UV rays within the water itself.
This is one of the finalist of Australian Design Awards. Design is Mr Jason Lam