都市鉱山クレジット：電子廃棄物からの金回収のための炭素クレジットメカニズムの設計
Urban gold mining credit: Designing a carbon credit mechanism for gold recovery from electronic waste (原題)
Beckham Napitupulu, Aidatul Fitriyah
🤖 gxceed AI 要約
日本語
インドネシアのe-wasteからの金回収（都市鉱山）に炭素クレジットを統合するメカニズムを設計。LCAにより一次採掘比86.9%の排出削減を実証し、Verra手法をSRN-PPIに適応したハイブリッドプロトコルを提案。経済分析では炭素クレジット収入は限定的だが、グリーンゴールドプレミアムがNPVを20.4%向上させることを示した。
English
This study designs a carbon credit mechanism for gold recovery from e-waste (urban mining) in Indonesia. LCA shows an 86.9% emission reduction versus primary mining, and a hybrid protocol adapting Verra to SRN-PPI is proposed. Economic analysis reveals carbon credit revenue is modest, but a green gold premium boosts NPV by 20.4%, offering a viable pathway for formalizing e-waste management.
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、都市鉱山（特に貴金属リサイクル）は資源安全保障と循環経済の観点で注目される。本論文の炭素クレジット統合の枠組みは、J-クレジット制度やGXリーグにおける廃棄物由来の排出削減認証の設計に示唆を与える。また、サプライチェーン排出削減（Scope 3）の観点から、リサイクル材の環境価値の可視化に貢献する。
In the global GX context
Globally, this paper contributes to the emerging field of circular economy carbon credits, demonstrating how urban mining can be integrated into carbon markets. It offers a replicable framework for adapting international methodologies (Verra, Gold Standard) to national registries, relevant for countries developing Article 6 infrastructure. The green gold premium concept aligns with growing demand for low-carbon materials in supply chains.
👥 読者別の含意
🔬研究者:Provides a methodological template for integrating LCA with carbon credit protocol design in circular economy contexts.
🏢実務担当者:Offers insights for e-waste recyclers and precious metal refiners on monetizing environmental benefits through carbon credits and green premiums.
🏛政策担当者:Highlights the potential of carbon credit mechanisms to formalize e-waste management and suggests policy coordination for multi-stakeholder implementation.
📄 Abstract（原文）
Background: Indonesia generates 1.9 million tons of e-waste annually, with a 20% recycling rate. Printed circuit boards contain 240–340 grams of gold per ton, 300 times higher than natural ore. Urban mining recovers resources while reducing emissions, yet economic mechanisms remain underdeveloped. Indonesia's carbon credit infrastructure (SRN-PPI and IDX Carbon) provides potential to monetize environmental benefits. Methods: Research employs qualitative policy design with Life Cycle Assessment (LCA) following ISO 14040/14044. Comparative regulatory analysis examines how international carbon credit methodologies (Verra AMS-III.BA, Gold Standard) adapt to SRN-PPI requirements. Primary data includes Ministry regulatory documents and IDX Carbon specifications. Secondary data comprises peer-reviewed literature (2012–2025) on LCA, carbon pricing, and urban mining. Economic analysis uses discounted cash flow modeling with a 10-year projection and sensitivity analysis. Findings: LCA demonstrates urban gold mining from e-waste achieves 13,041 kg CO₂-equivalent per kilogram gold savings, 86.9% reduction versus the primary mining baseline of 15,000 kg CO₂-eq per kilogram. The hybrid carbon credit protocol adapts Verra methodology to SRN-PPI compliance, maintaining methodological integrity. Operational pathway from development through validation, registration, monitoring, and verification is clearly mapped. Economic analysis shows a 1,000-ton-per-year facility generates a baseline net present value of Rp 108 billion; carbon credit revenue adds Rp 274 million annually, while green gold premium significantly boosts the NPV to Rp 130 billion (+20.4%). Conclusion: Urban gold mining with integrated carbon credits and ESG-aligned bullion banking creates a viable pathway for Indonesia to formalize e-waste management and reduce emissions. Multi-stakeholder coordination is essential. Novelty/Originality of this article: First comprehensive integration of LCA, carbon credit protocol adapted to Indonesia's SRN-PPI, and green gold market analysis for urban precious metal recovery from e-waste in Southeast Asia.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.61511/sudeij.v3i2.2026.3479first seen 2026-09-02 04:54:07
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