Distributed Disassembly System for Material Recycling

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  • マテリアルリサイクルのための分散分解手法に関する研究
  • マテリアルリサイクル ノ タメ ノ ブンサン ブンカイ シュホウ ニ カンスル ケンキュウ

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In this paper, we propose a distributed disassembly system in which products are disassembled into parts or units based on the home material separation criteria in each house for material recycling. In this system, a citizen disassembles the discarded electric appliance by oneself and separates disassembled parts according to material type (such as iron, copper, alminum) in each home, and separated waste parts are taken to the recycling collection point. This system can reduce the disassembly and separation work in the recycling center, because separated waste parts are collected at the center. The flows of wastes are used to evaluate the efficiency of the proposed system and a conventional electronic waste system. The amount of work is shown as a work unit, meaning the disassembly work or separation work for one part in this paper. Additionally, we propose a disassembly guideline for electronic waste which shows the main material in each part and connection for disassembly. In application, we estimated the work amount of the proposed system and a conventional system from actual data. The disassembling and separation work in the conventional system are overconcentrated in the recycling center. However the work in the distributed disassembly system is decentralized to each family discarding the waste product. It is clear that the variance in work amount and misclassification of material type depend on disassembly guideline information.

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