成果報告書詳細
管理番号20110000000332
タイトル*平成22年度中間年報 太陽光発電システム次世代高性能技術の開発 広域対象のPVシステム汎用リサイクル処理手法に関する研究開発 
公開日2011/6/29
報告書年度2010 - 2010
委託先名財団法人北九州産業学術推進機構
プロジェクト番号P07015
部署名新エネルギー部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 本研究では、今後大量廃棄が予想されるPVシステムのリサイクル処理手法の確立に向けて、低コストかつ各種モジュールに対応可能な汎用リサイクル処理技術を開発すると共に、広域的な回収法やリサイクル取り扱い規定の法制化及び規制緩和等、新たな社会システム構築のための提案とその基礎検証を行なう。 平成22年度は次の3項目、(1)低コスト汎用リサイクル処理技術の基本技術開発、(2)LCA調査、(3)広域対象のPVシステム汎用リサイクル処理に必要な社会システムの調査・提案に対して、研究・調査を実施し、それぞれ下記成果を得た。
英文要約Title: Development on PV recycling system for some wide-area (FY2010-FY2012) FY2010 Annual Report
Aiming at establishment of a PV recycling system, we have started a development of low cost universal recycling processes applicable to various types of PV modules and a LCA study and proposing a social system desired for the PV recycling system. Outline of the development and the studies in fiscal 2010 are as follows. For the development of low cost universal recycling processes, we have made prototypes of loader-unloaders and a back-sheet remover and improved an EVA-thermal decomposition apparatus made in a former NEDO Project. The back-sheet remover prevents PV modules from thermal cracking due to the difference of thermal expansion coefficients between back-sheets and substrate glasses at a thermal decomposition process of EVA. Improving the EVA-thermal decomposition apparatus, temperature of re-decomposition process after decomposition of EVA is raised from 800 to 1100 deg C. Regarding the LCA study, we assumed 1) wastes discharged from households and plants, 2) conducting assessments reflecting recycling technology for PV system in around 2020, 3) targeting three kinds of solar cells including three types of crystalline-silicon, thin-film silicon and CIS which have already been assessed and 4) as for a range of the assessment, collection of primary data includes treatment of recycling materials. Particularly as to recycling, we specified individual issues and study policies required to be considered, on raw materials of solar cells, glasses, electrode materials and so forth. Proposing the social system, we conducted surveys on each recycling system for home electrical appliances, automobiles and PC, as examples of the existing recycling systems. We also grasped concepts of European “PV CYCLE” and conducted introductory investigation on players comprising a social system for recycling PV modules. In parallel, we estimated the amount of wastes discharged from PV systems based on the past transition of PV system installations and from production plants of PV modules based on the assumption of future prospects for PV modules productions, for the whole of Japan and the Kyushu-Chugoku regions. As for legal systems, the primary study on a state of the Japanese Solid Waste Management Act and Law for Promotion of Effective Utilization of Resources was conducted for recommendations on deregulation in on-going waste management regulations as well as new regulations. As the results, it was founded that 1) waste PV panels from product lines or building demolitions were discharged not as domestic waste but as industrial waste in current situation, 2) an integrated certified waste management system should be applied for PV module recycling, in which waste generators, waste transporters and waste handlers were certified at once, 3) it was also an option that waste PV module systems could be charged same as in the Home Electrical Appliance Law.
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