Improving biomass yield in bubble column reactors: A review on cultivation, treatment, and applications of microalgae
気泡塔リアクターにおけるバイオマス収率向上：微細藻類の培養、処理、応用に関するレビュー (AI 翻訳)
Ahmed J. Abd, Shurooq T. Al-Humair, Riyadh S. Al-Mukhtar, Zahraa Z. Al-Janabi, Assim H. Flayyih, M. Adel, Ali H. AlSarji
🤖 gxceed AI 要約
日本語
本レビューは、微細藻類培養における気泡塔リアクター（BCR）の利点と課題を整理し、光・ガス流・廃水利用などの生産性向上戦略を検討する。BCRは低エネルギー消費・低剪断応力でCO2回収や廃水処理に有望であり、低炭素循環型バイオエコノミーへの貢献が期待される。しかし、収穫効率や大規模化の課題が残る。
English
This review examines bubble column reactors (BCRs) for microalgae cultivation, highlighting their low energy consumption and shear stress, and strategies to improve productivity such as lighting optimization and wastewater use. BCRs offer potential for CO2 capture, wastewater treatment, and biofuel production, contributing to a low-carbon circular bioeconomy, though challenges in harvesting and scale-up remain.
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、微細藻類を用いたCO2回収・バイオ燃料生産はカーボンニュートラル戦略の一環として注目されており、本レビューは技術動向の把握に有用。特に、廃水処理とCO2固定を組み合わせた循環型システムは、日本の産業排水対策や地域バイオマス活用に示唆を与える。
In the global GX context
Globally, microalgae-based CO2 capture and biofuel production align with climate goals and circular economy principles. This review provides a comprehensive overview of BCR technology, which is relevant for industrial decarbonization and sustainable resource management, though it lacks specific policy or economic analysis.
👥 読者別の含意
🔬研究者:Provides a consolidated overview of BCR design parameters and productivity enhancement strategies for microalgae cultivation.
🏢実務担当者:Offers insights into low-energy reactor options for CO2 capture and wastewater treatment that could be integrated into industrial processes.
🏛政策担当者:Highlights the potential of microalgae systems for circular bioeconomy policies, but lacks concrete policy recommendations.
📄 Abstract（原文）
In the 21st century, the world faces growing environmental and energy challenges, including rising carbon dioxide emissions (exceeding 420 parts per million), water pollution from excess nutrients (nitrogen and phosphorus), causing ecological imbalance, and a 45–50% increase in global energy demand by 2050. Microalgae offer a comprehensive solution thanks to their high photosynthetic efficiency (8–10%), high productivity (50–70 g/m²/ day), and ability to produce valuable compounds such as lipids, proteins, and pigments. Bubble column reactors (BCRs) are considered the most attractive option for industrial applications due to their low energy consumption (0.2–2.0 kW/m³ compared to 1–15 kW/m³ for mechanical systems), low shear stress (less than 5 Pa), and a volumetric gas transfer coefficient ranging from 0.01–0.035/s, in addition to absence of mechanical stress, simple design, and high gas transfer efficiency. This research reviews strategies for improving productivity, such as optimizing lighting, gas flow, and the use of wastewater as a nutrient source, as well as incorporating packing media that increase the surface area by up to 56%. It also covers wastewater treatment applications (removal of nitrogen, phosphorus, and heavy metals), carbon dioxide capture from industrial gases, and the production of biofuels, animal feed, fertilizers, and high-value dyes. Despite the progress made, challenges remain regarding harvesting efficiency, light distribution at large scales, and long-term stability. The research concludes that bubble column reactors represent a promising path toward a low-carbon circular bioeconomy, particularly when combined with advanced automation and process control.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.ecoeet.com/pdf-225242-143032?filename=Improving-biomass-yield-i.pdffirst seen 2026-08-06 05:30:54
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。