For years, people have been trying to keep the environment clean. Scientific studies provide us with information on how we can maintain the natural balance of life, and recycling has a primary role in these studies. Because of natural disasters or increasing population and urbanization, great amounts of waste materials are produced.These waste materials include iron, wood, glass, ceramics, rubber and EPS (i.e., expanded polystyrene). To make the recycling of these various materials productive, we should first separate them according to their types