Hydrogeological assessment of megawatt-scale low-carbon heat generation from a single mine water surface discharge
単一鉱山水面排水からのメガワット規模低炭素熱生成の水文地質学的評価 (AI 翻訳)
J Harrison, David B. Walls, Neil Burnside
🤖 gxceed AI 要約
日本語
スコットランドのOld Fordell鉱山水排出量を調査し、重力駆動の表面排水から4.4MWの熱出力が可能であることを示した。2007年から2019年のデータを用い、地域の坑水水位の安定性が持続可能性の鍵であることを明らかにした。
English
This study assesses the Old Fordell mine water discharge in Scotland, showing that gravity-driven surface discharge can provide 4.4 MW of heat output, sufficient for about 1,100 homes. Based on 2007–2019 monitoring data, the heat output is sustainable if regional mine water levels remain stable.
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
日本の旧炭鉱地域（北海道・九州など）でも類似の坑水熱利用が可能。本事例は坑水処理コストの低減と低炭素熱供給の両立を示唆し、日本の地域エネルギー政策に示唆を与える。
In the global GX context
This paper offers a practical example of low-carbon heat from mine water, relevant to post-mining communities globally. It highlights the dual benefit of environmental remediation and renewable energy generation, aligning with energy transition goals.
👥 読者別の含意
🔬研究者:Provides a methodological framework for assessing mine water geothermal potential using legacy data.
🏢実務担当者:For mine remediation agencies and district heating developers: a replicable approach to harness mine water heat.
🏛政策担当者:Suggests policy support for integrating mine water heat into local energy plans, offsetting treatment costs.
📄 Abstract（原文）
Mine water geothermal schemes (MWGS) typically involve two or more boreholes and require power to pump water from depth, incurring exploration, drilling, and operational costs. Gravity driven mine water surface discharges are a common feature of former coal mining areas. Where discharge flow rates are high enough, MWGS could be installed to provide low-cost, low-carbon heating. Situated in an urban environment, the Old Fordell mine water discharge is one of the largest in Scotland. With a total iron load of 130 tonnes/year, it also represents a significant environmental concern for the receiving watercourse. To determine potential heat output, a synthetic analysis was performed using legacy mine records and hydrogeological monitoring (chemistry, temperature, flow, water level measurements) data from the UK Mining Remediation Authority. Between 2007 and 2019, regional mine water levels rose from -120 m ordnance datum (OD) to +40 m OD before stabilizing. During this process, Old Fordell temperature rose by 2°C and chemical composition changed, indicating introduction of deeper-sourced water. Using a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>Δ</mml:mi> </mml:math> T of 8°C for heat extraction, mean discharge temperature (12.6°C) and flow rate (98 L/s) values provide a heat output of 4.4 megawatts (MW), enough to heat c. 1,100 homes. The potential heat output is deemed sustainable as long as regional mine water levels remain stable, showing that such features can supply heat to local users and have dual benefit of offsetting costs associated with installation and operation of any future mine water treatment plants.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1144/qjegh2025-158first seen 2026-06-29 05:20:33
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