For his senior thesis project, Samwel Emmanuel, S.B. ’17, an electrical engineering concentrator, developed a small-scale, inexpensive, easy-to-use multi-stream recycling unit that can automatically identify different materials and sort them into sections. His device uses five different sensors to distinguish between plastic and glass pieces of waste, detect metallic waste, and measure organic waste. Moving forward, he hopes to enhance the robustness of the sorting unit by adding additional sensors and also incorporate smart message system (SMS) capabilities so the device can notify a user by text message when it is full and needs to be emptied. “I am very excited about the future implications of this project,” he said. “A machine like this would be ideal for municipalities that use multi-stream recycling, since we can all agree that machines are better at sorting waste than humans can possibly hope to be.”
Read more: http://www.seas.harvard.edu/engineering/engineering-design-projects-spring-2017#emmanuel










