廃PEマルチフィルムの低炭素化：典型的な廃棄処理経路の炭素フットプリント比較分析
Low-Carbon Valorization of Waste PE Mulch Film: A Carbon Footprint Comparative Analysis of Typical End-of-Life Treatment Pathways (原題)
Yuanyuan Zhang, Weishan Sun, Xiaomeng Fang, Jiayu Xu
🤖 gxceed AI 要約
日本語
農業用マルチフィルムの廃棄処理経路（焼却、再顆粒化、熱分解）をライフサイクルで比較。炭素クレジットを考慮しない場合、再顆粒化が最も低排出（519.17 t CO2 eq）。クレジット考慮時は熱分解が最小（247.82 t CO2 eq）だが、これは製品代替による回避排出が主因。1トンあたりの炭素フットプリントは熱分解（2.24 t）<再顆粒化（4.49 t）<焼却（5.15 t）。年5400トンの熱分解施設で年間1082.16 t CO2 eqの削減が見込める。
English
This study compares end-of-life pathways for agricultural PE mulch film—incineration, mechanical regranulation, and pyrolysis—using full life-cycle carbon footprint modeling. Without carbon compensation, regranulation has the lowest emissions (519.17 t CO2 eq), while with compensation credits, pyrolysis achieves the lowest net emissions (247.82 t CO2 eq) due to avoided emissions from product substitution. Per-tonne footprints rank pyrolysis (2.24 t) < regranulation (4.49 t) < incineration (5.15 t). A 5400 t/year pyrolysis facility could reduce 1082.16 t CO2 eq annually.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では農地のプラスチック汚染が問題となっており、廃プラスチックの処理経路選択は循環経済政策やGHG排出削減に直結する。本研究成果は、日本の農業分野における廃プラスチック処理の低炭素化戦略に示唆を与える。
In the global GX context
This paper contributes to global discourse on plastic waste management and carbon footprinting, offering comparative life-cycle data that can inform waste management policies and carbon accounting practices. It highlights the importance of considering substitution credits in assessing recycling technologies, relevant for circular economy and climate mitigation strategies.
👥 読者別の含意
🔬研究者:Provides a detailed LCA comparison of waste PE film treatment pathways, useful for refining carbon footprint models and understanding substitution effects.
🏢実務担当者:Offers actionable insights for agricultural waste management companies and recyclers on choosing low-carbon disposal methods.
🏛政策担当者:Informs policy on agricultural plastic waste management and incentives for pyrolysis or regranulation infrastructure.
📄 Abstract（原文）
Widespread polyethylene (PE) mulch film application has caused severe farmland plastic pollution and greenhouse gas emissions. To identify low-carbon end-of-life pathways for waste agricultural mulch film, this study established a full life-cycle carbon footprint model comparing three treatment scenarios—incineration, mechanical regranulation, and pyrolysis, each coupled with residue landfilling—under two accounting conditions: with and without carbon-compensation credits from by-product substitution. Using 1 t of waste film as the functional unit and an 8 km2 farmland plot (110.4 t of applied film) as the reference scenario, cradle-to-grave emissions were quantified. Without compensation, regranulation delivers the lowest emissions (519.17 t CO2 eq), 12.02 t CO2 eq below pyrolysis. With compensation credits, pyrolysis achieves the lowest net emission (247.82 t CO2 eq, 248.10 t CO2 eq less than regranulation), but this advantage arises from avoided emissions of product substitution rather than lower direct emissions. The per-tonne carbon footprint ranks pyrolysis (2.24 t CO2 eq) < regranulation (4.49 t CO2 eq) < incineration (5.15 t CO2 eq). A proposed 5400 t/year pyrolysis facility yields an annual net carbon reduction of 1082.16 t CO2 eq. These results inform differentiated disposal strategies for major mulch-film-covering provinces.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18179047first seen 2026-09-05 05:10:33
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。