This description is for solar powered water treatment systems, which use the power of the sun to purify and clean water. These systems are designed to be energy efficient and cost effective, providing a reliable source of clean water for residential, commercial, and industrial applications. They are easy to install and
From Wikipedia
Solar water disinfection, in short SODIS, is a type of portable water purification that uses solar energy to make biologically contaminated 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.