Economic allocation in wastewater-to-energy life cycle assessment: Carbon value and mitigation co-benefits of palm oil mill effluent in the Global South
廃水からエネルギーへのLCAにおける経済的配分：グローバルサウスにおけるパーム油工場廃水の炭素価値と緩和便益 (AI 翻訳)
Heng Shue Teah, Heng Yi Teah, Yi Jing Chan, Mohd Amran Bin Mohd Yusof, Xin Yun Kiew, Yasunori Kikuchi, A SUZUKI
🤖 gxceed AI 要約
日本語
本論文は、パーム油工場廃水（POME）からの発電におけるライフサイクルアセスメント（LCA）の配分方法を比較。経済的配分が最も実用的であり、メタン回避による正味マイナス排出を達成することを示した。マレーシアの実データに基づき、政策への提言も行っている。
English
This study compares allocation methods in LCA of electricity from palm oil mill effluent (POME). Economic allocation is most pragmatic, yielding net negative emissions via methane avoidance. Based on primary data from four Malaysian biogas plants, policy recommendations are provided.
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
日本のGX文脈では、廃棄物系バイオマスからのエネルギー回収とLCA配分方法は、Scope 3排出量算定やサプライチェーン全体の炭素会計に直結する。特に、SSBJ開示基準における配分原則の選択は重要な論点であり、本論文の知見は実務に示唆を与える。
In the global GX context
In the global context, this paper addresses the critical LCA allocation challenge for waste-to-energy, directly relevant to ISSB standards and carbon accounting in supply chains. It highlights how economic allocation aligns with financial risk-sharing, offering practical guidance for private capital mobilization in the Global South.
👥 読者別の含意
🔬研究者:This paper provides a rigorous comparison of LCA allocation methods for waste-to-energy, essential for researchers working on carbon footprinting and bioenergy LCA.
🏢実務担当者:Corporate sustainability teams can apply the economic allocation approach to more accurately report emissions from waste-to-energy projects, especially in palm oil supply chains.
🏛政策担当者:Policymakers should consider value-based mechanisms that reward methane avoidance to incentivize private investment in wastewater valorization.
📄 Abstract（原文）
ABSTRACT The valorization of Palm Oil Mill Effluent (POME) into renewable energy transforms a hazardous waste stream into a valuable co-product, introducing complexities in Life Cycle Assessment (LCA) burden partitioning. This study evaluates the environmental profile of POME-generated electricity and investigates how allocation principles influence the carbon intensity of waste-to-energy initiatives in developing economies. A cradle-to-gate LCA was conducted using primary data from four operational biogas plants in Malaysia, with a functional unit of 1 kWh of electricity. Five allocation methods were compared: cut-off, mass, energy, economic, and substitution-based allocation. Sensitivity analyses were performed to assess the stability of economic allocation against global commodity price volatility. Results indicate that mass allocation assigns a disproportionate upstream burden (72%) to POME, resulting in a prohibitive carbon intensity of 4.57 kg CO 2 e/kWh. Conversely, economic allocation attributes only 1.72% of the burden, resulting in 0.52 kg CO 2 e/kWh, which better reflects the waste status of the effluent. Crucially, when accounting for avoided methane emissions, POME-electricity achieves a net negative impact of -3.8 kg CO 2 e/kWh. The study concludes that POME-electricity offers superior decarbonization potential through methane avoidance. Economic allocation is identified as the most pragmatic framework for process safety and environmental accounting, as it aligns with financial risk-sharing in real-world business ventures. Policymakers are urged to transition toward value-based mechanisms that reward this pollution reduction co-benefit to mobilize private capital for wastewater valorization.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.psep.2026.109123first seen 2026-07-02 05:03:15
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