廃貝殻由来CaOとWolffia globosaを利用したCO2回収システムの設計とIoTリアルタイム監視
Design of Carbon Capture System Utilizing Wolffia globosa and CaO Derived From Waste Seashells With Continuous Real‐Time IoT ‐Based Monitoring (原題)
Methawee Nukunudompanich, Nopparat Suriyachai, Nattapon Leeabai, Neeraphat Kunbuala, Suebsakul Pontong, Thanavit Anuwongpinit
🤖 gxceed AI 要約
日本語
本研究は、Wolffia globosa栽培、廃貝殻由来CaOによる鉱物炭酸化、IoTリアルタイム監視を組み合わせたハイブリッドCO2回収システムのプロトタイプを設計・実装した。900℃で焼成したCaOを特性評価し、鉱物炭酸化に使用。IoTシステムはCO2濃度、pH、温度を連続監視し、鉱物層通過後に約300ppmのCO2減少を観測した。ただし、焼成排出やエネルギー需要を含む正味炭素収支は未評価であり、局所的なCO2吸収として解釈すべきである。
English
This study designed and implemented a prototype hybrid CO2 capture system combining Wolffia globosa cultivation, mineral carbonation with waste seashell-derived CaO, and real-time IoT monitoring. The IoT system continuously tracked CO2, pH, and temperature, observing a consistent ~300 ppm decrease after the mineral bed. However, a full net carbon balance was not included, so the decrease should be interpreted as local CO2 uptake, not confirmed net removal.
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、廃棄物由来材料の活用やCCUS技術の開発がGX政策で重視されており、本研究成果は地域資源循環型のCO2回収技術の可能性を示す。ただし、実用化には正味炭素収支の評価やスケールアップが必要であり、日本のCCUS戦略への示唆として位置づけられる。
In the global GX context
Globally, CCUS is a key mitigation technology, and this study demonstrates a low-cost, waste-derived approach with IoT monitoring, which could be relevant for distributed or small-scale applications. However, the lack of a net carbon balance limits its contribution to climate targets, and further research is needed to assess full life-cycle emissions.
👥 読者別の含意
🔬研究者:Provides a proof-of-concept for hybrid biological-mineral CO2 capture with IoT monitoring, but highlights the need for full carbon accounting.
🏢実務担当者:Offers a potential low-cost CCUS approach using waste seashells, but requires validation of net carbon removal before industrial adoption.
🏛政策担当者:Suggests potential for waste valorization in CCUS, but emphasizes the importance of rigorous carbon accounting in policy support.
📄 Abstract（原文）
ABSTRACT This study presents the design and implementation of a prototype‐scale hybrid CO 2 capture system that combines Wolffia globosa cultivation, mineral carbonation with waste seashell‐derived CaO, and real‐time IoT‐based monitoring. Waste seashells were calcined at 900°C to produce CaO, which was characterized by XRD and morphological FESEM and EDS analysis and was selected for mineral carbonation. The IoT system monitored changes in CO 2 concentration above the W. globosa tank, which were influenced by photosynthesis and respiration cycles. It also tracked CO 2 concentration after the mineral bed, where a consistent decrease of approximately 300 ppm relative to the inlet was observed under the tested conditions, with outlet readings approaching the lower bound of the sensor's specified accuracy (±[50 ppm + 5% of reading]). This decrease was attributed to CaO hydration and subsequent carbonation. Continuous measurements of CO 2 , pH, and temperature provided useful diagnostic information for interpreting system behavior. The results demonstrate the feasibility of integrating locally available waste‐derived CaO with biological cultivation and IoT‐based monitoring in a small‐scale laboratory prototype. However, a full net carbon balance, including calcination emissions and operational energy demand, was not included in this study. Therefore, the observed CO 2 decrease should be interpreted as local CO 2 uptake during the mineral carbonation step rather than confirmed net carbon removal.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/eng2.71044first seen 2026-08-29 04:42:18
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