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Science·1 min read

Researchers develop heat-based recycling method for wind turbine blades

Researchers have developed a heat-based process that recovers valuable materials from wind turbine rotor blades, whose composite is notoriously hard to recycle.

Large wind turbine rotor blades lying on the ground at a wind farm, awaiting recycling.
Image: heise online
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Researchers have developed a recycling method for the rotor blades of wind turbines. The process uses heat to recover important materials from the blades, which have so far been difficult to reuse.

The problem lies in the blades' construction. They are made of a composite material, and its combination of different components makes conventional recycling hard. That has long been a weak point in the otherwise climate-friendly image of wind power.

Why it matters

As wind farms age, more rotor blades will eventually need to be replaced and disposed of. A method that turns the composite back into usable raw materials could reduce waste and make the technology more sustainable over its full life cycle.

The available information does not say which materials the process recovers in detail, how efficient it is, or whether it is ready for industrial use. Those points will determine whether the heat-based approach can move from the laboratory into practice.

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Tags:wind powerrecyclingrotor bladescomposite materialssustainability

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