MODELLING AND DEVELOPMENT OF REVERSE VENDING MACHINE FOR PET BOTTLE COLLECTION WITH INTEGRATED REWARD MECHANISM

Abstract: Plastic pollution is a pressing environmental concern, especially in urban environments with high consumption of single-use PET bottles. Reverse Vending Machines (RVMs) offer a modern solution by combining automation, sensor technology, and user incentives to promote responsible disposal. This paper presents the design, modelling, and fabrication of an RVM that automatically detects PET bottles, verifies their suitability, shreds them for processing, and provides user rewards. A comprehensive approach including mechanical design, electronic integration, software logic, and component selection is outlined. The developed prototype demonstrates effective operation and encourages community recycling behavior.