The process of desalination is nothing more than the removal of dissolved salts and minerals from seawater or sewage and it has become an everyday activity in some countries. Every human being, animal needs of fresh water for drinking, cooking, irrigation, etc. become popular due to global warming. Overall, there are 60% desalination plants available in the world and unfortunately. As we all know, seawater desalination plants in Qatar treat seawater, rivers and other water bodies. The first process is to remove floating objects such as pollutants, bacteria and microbes. With the help of air, the screen will be wiped clean. The remaining water with impurities will now be taken to a sedimentation process tank to remove small solid particles.The sand particles will be cleaned for reuse. The next step will be the disinfection of bacteria and other organic compounds using ozone gas. Ozone now passes through waters. This can be converted into oxygen and released into the atmosphere . Carbon filters are used to remove impurities as well as hazardous chemicals. Finally, the water will be transported to the storage tanks. Chlorine may be added to treat bacterial contamination.Therefore, waters from natural water bodies can be purified using seawater desalination plants in Qatar.