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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.

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