St George's School
Floor Location : M 202 N
With the increasing population density, urban sanitation is a growing crisis. In addition to creating unpleasant smells, pathogenic contents of outdoor waste containers critically endanger both humans and wildlife. Traditional Garbage Bins are rarely cleaned because of the risk and unpleasant nature of manually removing grime buildup, and any cleaning is often done improperly, causing hazardous cleaning chemicals to seep into the environment exceeding safe concentration levels.
Applying interdisciplinary science, a model Smart Bin was developed as an eco-friendly and self-sustainable solution to automate the cleaning process. Overcoming the industry obstacle posed by the irregular shape and complex contour of garbage containers, the Smart Bin features an automatically compensating rim and platform cleaning system, which leverages gravity during bin inversion as part of robotic garbage collection processes to macroscopically clean the container interior while utilizing minimal space.
Replacing traditional cleaning chemicals, the Smart Bin employs a microcontroller moderated Ozone [O3] treatment system, powered by photovoltaics, for deodorization and microscopic cleaning. Ozone, having an oxidization potential 150% stronger than Chlorine, destroys microbes by rupturing their cell walls before rapidly decomposing into diatomic oxygen, causing zero bioaccumulation.
After testing the various components of the Mechanical, Chemical, and Electrical subsystems in individual and relative isolation, a custom testing apparatus was constructed to consistently simulate the motions of a robotic arm during the garbage collection process. Experimentation qualitatively and quantitatively verified the functionality, durability, and efficiency of the Smart Bin, proving my innovation feasible for adaptation to outdoor garbage containers currently in circulation.