Solar water disinfection
（重定向自Solar disinfection）
![SODIS application in Indonesia using clear PET plastic beverage bottles](/Images/godic/202502/12/Indonesia-sodis-gross2444.jpg")
![Aluminum reflects ultraviolet well](/Images/godic/202502/12/Image-Metal-reflectance2444.png")
![The PET recycling mark shows that a bottle is made from polyethylene terephthalate, making it suitable for solar water disinfection[12]](/Images/godic/202502/12/U+2673_DejaVu_Sans.svg2444.png")
![Only forty-six percent of people in Africa have safe drinking water](/Images/godic/202502/12/Mwamongu_water_source2444.jpg")
Solar water disinfection is a type of portable water purification that uses solar energy to make biologically-contaminated (e.g. bacteria, viruses, protozoa and worms) water safe to drink. Water contaminated with non-biological agents such as toxic chemicals or heavy metals require additional steps to make the water safe to drink.