選択的O3/SPC酸化がin situ内生炭素を介して濃縮芳香族汚染物質修復のカーボンフットプリントを最小化する
Selective O3/SPC oxidation minimizes the carbon footprint of concentrated aromatic remediation via in situ endogenous carbon (原題)
Yi Mu, Zihao Xiong, Xueying Liu, Haopeng Pei, Mingshu Li, Guangming Zhan, Qing Sun, Hao Li, Meng Zhang, Jian‐Ping Zou
🤖 gxceed AI 要約
日本語
オゾン/過炭酸ソーダ（O3/SPC）系で炭酸ラジカルを選択的に発生させ、難分解性芳香族を生分解性の酢酸・ギ酸へ転換する手法を提案。実農薬廃水でBOD5/CODを0.01から0.45へ改善し、外部炭素添加なしの生物処理を可能にした。ライフサイクル評価で従来のO3/H2O2比CO2排出を40.2%削減し、低炭素な産業廃水処理の道筋を示す。
English
An ozone/percarbonate (O3/SPC) system generates electrophilic carbonate radicals that selectively cleave aromatic rings, converting recalcitrant aromatic carbon into biodegradable acetate and formate. In real pesticide wastewater, BOD5/COD rose from 0.01 to 0.45, enabling self-sufficient anaerobic/aerobic treatment without exogenous carbon dosing. Life-cycle analysis shows a 40.2% carbon-emission reduction versus O3/H2O2, offering a low-carbon route for bio-refractory industrial effluents.
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
日本では化学・農薬・繊維など素材産業の排水処理がScope 1・水リスク管理の焦点であり、外部炭素添加と污泥処分コストの削減は製造業の脱炭素投資判断に直結する。SSBJのScope 1算定や水資源開示の文脈でも、処理プロセスの低炭素化は補足的な根拠となりうる。
In the global GX context
Industrial wastewater decarbonization sits at the edge of mainstream disclosure frameworks, but it feeds Scope 1 accounting and water-risk disclosure under CSRD/ISSB. The paper's LCA-based 40% emission cut and elimination of exogenous carbon dosing offer a concrete abatement lever for chemicals, pesticides and textile supply chains reporting transition plans.
👥 読者別の含意
🔬研究者:選択的酸化による内生炭素活用という設計思想は、廃水処理と炭素収支を統合したLCA研究の新たな比較軸を提供する。
🏢実務担当者:農薬・化学工場の排水処理で外部炭素添加と污泥処分費を削減し、Scope 1排出と処理コストを同時に下げる選択肢になりうる。
🏛政策担当者:産業排水の低炭素処理技術を水質規制・脱炭素補助の対象として評価する際の定量的根拠となる。
📄 Abstract（原文）
Managing recalcitrant aromatic pollutants with high toxicity and low biodegradability in industrial wastewater has been a persistent global challenge. Conventional pretreatment of aromatic pollutants with hydroxyl radicals (•OH) non-selectively destroys the intrinsic carbon essential for subsequent biological treatment, thus necessitating costly exogenous carbon supplementation accompanied by prominent CO2 emissions. Herein, we introduce an ozone/percarbonate (O3/SPC) system engineered to deliver electrophilic carbonate radicals (CO3•–) that target the electron-rich conjugated π-systems of aromatic pollutants, promoting ring fragmentation and efficiently converting primary aromatic carbon into valuable endogenous feedstocks, primarily biodegradable acetate and formate. When applied to actual pesticide wastewater dominated by xylene (initial COD = 11000 mg L−1), this O3/SPC strategy boosts the BOD5/COD ratio from an initial 0.01 to 0.45, two times higher than that (0.22) achieved in the •OH-dominated O3/H2O2 counterpart system, thereby enabling self-sufficient downstream anaerobic digestion (AD) followed by anaerobic/aerobic (A/O) treatment to reduce the chemical oxygen demand below 50 mg L−1 and total nitrogen (TN) below 15 mg L−1. Further life cycle analyses demonstrate the O3/SPC process reduces carbon emissions by 40.2% relative to the O3/H2O2 counterpart, establishing a low-carbon, resource-efficient approach for remediating bio-refractory industrial effluents. The study presents a selective oxidation strategy using ozone and sodium percarbonate to transform recalcitrant aromatics in pesticide wastewater into biodegradable nutrients. The process enables self-sufficient biological treatment and lowers the carbon footprint by 40%, advancing sustainable remediation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41467-026-77676-wfirst seen 2026-09-14 04:46:00
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