Researchers at Japan’s Ritsumeikan University are proposing the idea of a distributed recycling system that uses microwave heating for extracting metals from old alkaline batteries.
Distributed recycling systems involving small-scale recycling facilities offer a sustainable alternative to conventional recycling systems as they can greatly reduce the energy requirements for transportation and, thus, have the potential to increase recycling rates.While this system is still in its infancy, many studies have explored its use in recycling plastics, photovoltaic waste, and wastewater, with particularly promising outcomes in distributed plastic recycling.
“The feasibility of decentralizing the recycling of e-waste needs to be analyzed, considering the different characteristics of each municipality,” said Shoki Kosai, a member of the research team and the first author ofThe study introduces a system that employs microwave irradiation, which offers selective, rapid heating and reduced energy consumption compared to furnace-based heating.
To test the effectiveness of the proposed recycling system, the scientists used energy consumption and greenhouse gas emissions as metrics.
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