Treatment of domestic waste water using a solar distillation unit

Water is one of the most important resources in the world even though 70% of the earth is covered in water less than 1% of it is in humans reach. Even that much amount of water plays a very crucial role in human life. But due to different human activities the fresh water is getting polluted each and every day so treating it is very important for development. There are many methods to treat waste water among them solar distillation is very important since it uses only solar radiation for the treatment. The basin of a solar distillation unit is very important. It is the part of the system in which the water to be distilled is kept. It is therefore essential that it must absorb solar energy. Hence it is necessary that the material have high absorbtivity or very less reflectivity and very less transmitivity.