Practical Considerations for Electrokinetic-Biocementation Using Carbonic Anhydrase-Producing Bacteria: Field Set Ups and Environmental Sustainability Assessment
炭酸脱水酵素産生菌を用いた電気動態バイオセメンテーションの実践的考慮事項：フィールドセットアップと環境持続可能性評価 (AI 翻訳)
Maria Mavroulidou, M. Gunn, Ottavia Rispoli, Sumit S. Joshi, Jon Garelick
🤖 gxceed AI 要約
日本語
本研究は、鉄道盛土下の粘土質地盤に対する電気動態バイオセメンテーションの実用性を評価した。炭酸脱水酵素産生菌のバイオスティミュレーションによるバイオセメンテーションと水酸化石灰スラリーのLCA比較では、バイオセメントが地球温暖化への影響と資源使用量を大幅に削減する一方、水消費量が多く、その他の環境影響はわずかに高い結果となった。フィールド試験による検証と最適化が必要。
English
This scoping study evaluates electrokinetic biocementation of clay soil under a railway embankment using carbonic anhydrase-producing bacteria. LCA shows that biocementation reduces global warming potential and resource usage compared to hydrated lime, but increases water consumption and slightly higher terrestrial acidification and ecotoxicity. Field trials are needed for validation and optimization.
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
日本の建設分野では、インフラの脱炭素化が求められており、本技術は地盤改良における低炭素代替案として有望である。LCAによる定量的評価は、日本のグリーンインフラ政策への貢献が期待される。
In the global GX context
This paper contributes to global efforts in sustainable construction by providing a comparative LCA of a novel biocementation technique. The findings support the use of microbial induced carbonate precipitation as a low-carbon soil stabilization method, relevant to international climate goals and circular economy in construction.
👥 読者別の含意
🔬研究者:Provides LCA data and field setup considerations for electrokinetic biocementation using CA-producing bacteria.
🏢実務担当者:Construction firms can assess the environmental trade-offs of using biocementation versus traditional lime treatment for soil stabilization.
📄 Abstract（原文）
This scoping study assesses practical aspects of electrokinetic (EK) biocementation of clay soil underneath a railway embankment ahead of upscaled testing to include a reduced-scale field pilot as an intermediate step towards subsequent pilot embankment treatment. It considers suitable field setups and performs Life Cycle Analysis (LCA) of biocementation by biostimulation of carbonic anhydrase (CA)-producing bacteria compared to hydrated lime slurry, if both treatments were implemented electrokinetically. LCA analysis was conducted using SimaPro software (version 9.6.0.1) with Ecoinvent database and bench-scale laboratory testing data. Electroosmotic flow modelling was performed to instruct on suitable setups and for estimates of power consumption towards the field application of 30 m of railway embankment and foundation soil. LCA indicated a considerable reduction in global warming if CA biocementation is used (0.00823 kg CO2 eq for biocement vs. 0.022136 kg CO2 eq for lime), and resource usage (7.06 × 10−5 kg Cu eq compared to 8.47 × 10−5 kg Cu eq for lime). Biocementation was more water-consuming compared to lime, as it involved multiple chemical solutions. Terrestrial acidification, aquatic eutrophication, and ecotoxicity were slightly higher for biocement, possibly due to system boundaries and processes assumed for material production. Further sustainability improvements would be possible if waste materials (e.g., captured industrial CO2) could be used. Field trials will be essential for validation, system optimisation, and advanced model calibration.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/app16063007first seen 2026-05-06 00:18:25
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。