The optical sorting system
Optibag is a fully automated optical sorting system for municipal waste. The technology offers the customer a possibility to develop a resource efficient circular economy by upcycling household waste into a variety of valuable and recyclable fractions.
The customers are municipalities, cities, local authorities as well as private contractors within the waste management sector. The users range from households to commercial developments including restaurants and shops.
How it works
- Users are provided with different coloured waste bags corresponding to the different waste streams that are collected by the municipality.
- Each colour represents one waste fraction. For example, green could be used for food waste, red for paper waste and yellow for cardboard packaging and so on. Basically, any household waste fraction can be collected with the Optibag system.
- The waste bags are placed in the designated chute, bin or container and then collected with a conventional waste truck and transported to the Optibag plant. Upon arrival, the waste bags are dumped into a receiving pit and transferred to a conveyor belt.
- Once on the conveyor belt, the bags are sorted automatically using camera technology that recognises the colour of the bag. When a green bag (for example) is detected a signal is sent from the camera and the bag is pushed off the main conveyor belt, onto an underlying belt and is then directed to a receiving container or directly to further processing
- The fully automated optical sorting procedure is managed and supervised by an operator from the plant control room.
- The segregated materials are recycled, or processed to biogas and biofertilizers. Residual waste is often incinerated to produce environmentally friendly district heating/cooling.