Comprehensive Sustainability Evaluation of Low-Carbon Technology in Wastewater Treatment System Based on Carbon Reduction–Economy–Technology Coupling Index
排水処理システムにおける低炭素技術の包括的持続可能性評価—炭素削減・経済・技術連成指標に基づいて (AI 翻訳)
Xi Zhu, J J Liu, Chen Cai, XJ Huang, Ru Guo, Kaiming Peng
🤖 gxceed AI 要約
日本語
本研究では、排水処理システムにおける30の低炭素技術を対象に、炭素削減ポテンシャル、経済性、技術成熟度の3次元からなる包括的評価指標（CRETCI）を開発した。分析の結果、プロセス改善技術は平均0.136 kg CO2e/m3と高い炭素削減ポテンシャルを示す一方、エネルギー回収技術は限界削減費用が全てマイナスで経済性に優れ、総合評価でも最高スコア0.71を達成した。この評価フレームワークは、排水処理分野の低炭素移行経路の最適化に資する実践的知見を提供する。
English
This study develops a comprehensive evaluation index (CRETCI) for 30 low-carbon technologies in wastewater treatment, covering carbon reduction potential, economic performance, and technology readiness level. Results show that process improvement technologies have the highest carbon reduction (0.136 kg CO2e/m3), while energy recovery technologies exhibit the best economics with negative marginal abatement costs and the highest composite score (0.71). The framework provides practical support for optimizing low-carbon transition pathways in wastewater treatment.
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
本論文は中国の排水処理システムを対象としているが、評価フレームワークは日本の下水道・排水処理分野の低炭素技術選定や脱炭素経路の最適化にも応用可能である。日本の水道業界では2050年カーボンニュートラル目標に向け、本指標のような系統的評価手法の導入が期待される。
In the global GX context
This study offers a systematic evaluation tool for low-carbon technologies in wastewater treatment, relevant globally for municipal wastewater decarbonization pathways. The CRETCI framework aligns with international efforts to quantify and compare abatement costs and technology readiness, supporting decision-making for sustainable urban water infrastructure.
👥 読者別の含意
🔬研究者:Provides a multidimensional evaluation framework that can be applied or extended to other industrial sectors.
🏢実務担当者:Offers a practical index to compare and select low-carbon technologies for wastewater treatment plants.
🏛政策担当者:Supports policy development for promoting cost-effective and mature low-carbon technologies in water infrastructure.
📄 Abstract（原文）
Amid the escalating challenges of global climate change, promoting the sustainable and low-carbon transformation of wastewater treatment systems has become a critical pathway toward achieving carbon neutrality and sustainable urban infrastructure development. However, existing low-carbon technologies for wastewater treatment still lack systematic and sustainability-oriented evaluation approaches, which constrains the scientific selection of technologies and the optimization of low-carbon transition pathways. In this study, a comprehensive inventory of 30 low-carbon technologies was established across five categories, including equipment energy saving, process improvement, intelligent control, energy recovery, and resource recycling. Based on three dimensions, namely carbon reduction potential, economic performance, and technology readiness level, a Carbon Reduction–Economy–Technology Coupling Index (CRETCI) was developed to enable systematic quantitative evaluation and sustainability-oriented assessment of low-carbon technologies in wastewater treatment systems. The analysis of carbon reduction potential indicated that process improvement technologies exhibited the highest average carbon reduction potential, reaching approximately 0.136 kg CO2e/m3, demonstrating significant advantages in deep emission reduction. Economic analysis revealed that energy recovery technologies showed the best economic performance, with all marginal abatement costs being negative, indicating strong synergistic benefits between economic returns and carbon mitigation. The technological maturity assessment demonstrated that both intelligent control and energy recovery technologies achieved a Technology Readiness Level (TRL) of 9, indicating a well-established foundation for engineering application. The TCECI evaluation results showed that energy recovery technologies achieved the highest comprehensive score (0.71), significantly outperforming process improvement technologies (0.57). This finding suggests that the current low-carbon technology system for wastewater treatment is characterized by a structural trade-off between high carbon reduction potential and high technological maturity. Overall, this study establishes a multidimensional sustainability evaluation framework integrating environmental benefits, economic feasibility, and technological applicability, thereby providing important theoretical support and practical decision-making guidance for sustainable wastewater management, low-carbon technology selection, and carbon-neutral transition pathway optimization in the wastewater treatment sector.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18147139first seen 2026-07-15 04:58:48
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