Solar Disinfection Process

The solar disinfection process, also known as SODIS, is a simple and effective method of purifying water using sunlight. This technique has been used for many years in various parts of the world where access to clean drinking water is limited. The SODIS process involves placing contaminated water in clear plastic bottles and leaving them in direct sunlight for at least six hours. During this time, the UV rays from the sun penetrate the water, killing bacteria, viruses, and other microorganisms that can cause illness.

How it Works

The effectiveness of the solar disinfection process relies on the fact that ultraviolet (UV) light has germicidal properties, which means it is capable of killing a wide range of pathogens. Water placed in clear plastic bottles allows UV rays to penetrate the water without being absorbed or blocked by any materials. When left under direct sunlight for several hours, the UV radiation damages the DNA of bacteria and viruses, ultimately leading to their death. The process is easy to implement, requiring minimal equipment other than clear plastic bottles and a sunny spot.