Eco-friendly chitosan-based hydrogel for coal dust suppression via salting-out effect.
エコフレンドリーなキトサンベースハイドロゲルによる塩析効果を利用した石炭粉塵抑制 (AI 翻訳)
Shihang Li, Jinjing Liu, Jiayi Li, Muze Han, Xu Zhang, Zhenyu Wu, Shuda Hu, Hao Jin, Kaimin Hua, Kunkun Tu
🤖 gxceed AI 要約
日本語
本研究は、塩析法を用いてキトサンとクエン酸ナトリウムから環境に優しいハイドロゲル系ダスト抑制剤を開発した。このハイドロゲルは高い保水性（72時間で75%）、風食耐性（3〜7日で99%）、生分解性（25日で96%）を示し、分解生成物は植物の栄養となる。従来のダスト抑制剤の問題点を克服し、持続可能な採掘に貢献する。
English
This study developed a bio-based chitosan hydrogel dust suppressant using highly deacetylated chitosan and sodium citrate via salting-out. The hydrogel achieved ~75% water retention at 72 h, ~99% wind erosion resistance for 3-7 days, and ~96% degradation in 25 days, with degradation products nourishing plants. It offers a green, efficient alternative for coal dust control in mining.
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
日本の炭鉱は限定的だが、海外資源開発に関わる日本企業にとって、環境規制対応や地域社会との関係構築に資する技術。ただし、GXの核心であるカーボンアカウンティングや開示には直接関係しない。
In the global GX context
While coal dust suppression is not central to climate disclosure, this biodegradable hydrogel addresses operational sustainability in mining, relevant for companies reporting on environmental management under ESRS or ISSB standards. It exemplifies a material innovation that can reduce environmental footprint and align with circular economy principles.
👥 読者別の含意
🔬研究者:Materials scientists studying bio-based dust suppressants can adopt the salting-out method for chitosan hydrogels.
🏢実務担当者:Mining companies can consider this biodegradable suppressant to improve environmental performance and reduce secondary pollution.
📄 Abstract（原文）
Coal mining-related dust pollution poses significant threats to ecological integrity, occupational health, and industrial sustainability. Conventional dust suppressants, however, suffer from inherent limitations such as inadequate capture efficiency, poor water retention, and a tendency to cause secondary pollution. To overcome these challenges, this study developed a novel bio-based chitosan hydrogel dust suppressant using highly deacetylated chitosan and sodium citrate via an innovative salting-out method. By acting as both a salting-out agent and a pH regulator, sodium citrate enhances the binding affinity with coal dust to improve suppression performance. Its dust suppression primarily occurs through synergistic mechanisms including electrostatic adsorption, moisture retention/locking, and physical coverage. After 72 h, the hydrogel dust suppressant maintained a water retention rate close to 75%. Its wind erosion resistance rate remained at approximately 99% within 3-7 days, and its degradation rate reached about 96% within 25 days. Notably, compared to conventional materials, this formulation exhibits excellent biodegradability, with its carbon-containing degradation products providing nutrients for plant growth. This green multifunctional system avoids complex preparation processes, integrating high-efficiency dust suppression, environmental safety, and ecological compatibility. It demonstrates significant application potential in sustainable mining practices.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1016/j.ijbiomac.2026.150171first seen 2026-05-06 00:12:22
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