Recycling LCD screens is hazardous because their backlighting system often contains mercury, yet their seven layers also contain valuable raw materials.
The devices are usually dismantled by a complex manual process which puts workers at risk. So German recycling specialist Erdwich Zerkleinerungssysteme has developed a time-saving system that uses cameras and robots to cut open and dismantle monitors of up to 55in in a four-stage process under safe working conditions.
Harald Erdwich, head of sales and marketing, said: “A closed waste container is installed directly in the chamber for the gas discharge lamps that contain the mercury. At the same time, the exhaust air is extracted in a controlled process and collected by a mercury filter system, in which the harmful metal is converted into a non-toxic sulphide.”
The company also offers a cutting system for LCD monitors of up to 25in.