The problem of waste is not new anymore, especially in developing countries. Waste has become a severe problem. Lack of awareness from the community is one of the causes. Many people still litter, for example, in sewers, rivers or the sea. According to a survey conducted in 2018 there were 72% of the public not yet concerned about waste management, even 81% of plastic waste is dumped into the sea so that it will be very dangerous to the sustainability of the oceans. In 2025 it is predicted that plastic waste entering the sea will increase, if there is no improvement in waste management. One solution that can be done is to make a special trash bin so that it is easy when sorting out which rubbish can be disposed of in landfills or which will be recycled. In some studies, a smart trash bin has been created which can provide information if the trash bin is full, but sorting has not been done for the type of waste included. Subsequent research has made waste sorting machines, but on machines made using conveyors. This is certainly not suitable for a small-scale trash bin because to make or buy it requires expensive costs. Therefore, in this study, an automatic waste sorter machine designed for a small-scale was created. This machine uses an inductive proximity sensor to detect metal waste and a capacitive proximity sensor to detect plastic bottle waste. These sensors were chosen because they have been proven to be able to sort out different types of waste. Then this machine is equipped with a PIR sensor to detect whether or not people are going to throw waste, thus making opening and closing the trash cans automatically. In addition, there are also a LDR sensors and an ultrasonic sensors as additional detectors so that bins become smart. The LDR sensor is used to detect whether the waste has entered to the trash can and the ultrasonic sensor is used as a warning when the trash can is full.
STAVN specialize in municipal solid waste separation and recycling solutions and equipment. With a team with over 20 years know-how and global experience, STAVN is confident to offer practical and reliable waste recycling solutions. STAVN offers the full service on the technology aspect, from conceptual design to planning, production, assembly supervision, start-up and servicing of components to complete recycling and sorting systems.
STAVN doesn’t only provide high-quality plants but also offer all-around services to our customers. According to different requirements of different customers, we can make specific business plans for them. This team is consist of experienced engineers and technicians who are responsible for helping the customers with the preliminary assembling and commissioning of the plants.
