膜蒸留とSi+水素システムを統合した多機能マイクログリッドによるエネルギー-水-資源ネクサス

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🔬研究者:Provides a conceptual framework for integrating hydrogen production with water treatment in microgrids, offering insights for further research on system optimization and scale-up.

🏢実務担当者:Offers a potential solution for companies seeking to reduce carbon footprint and water stress through integrated energy-water systems, relevant for sustainability reporting and resource management.

🏛政策担当者:Highlights the need for supportive policies for decentralized hydrogen and water infrastructure, contributing to national decarbonization and resource security strategies.

The predominant reliance on grey, blue, and green (via renewables) hydrogen (H 2 ) production pathways perpetuate fossil fuel and chemical dependencies, creating significant water stress and carbon lock-in effects that directly contradict decarbonization objectives and exacerbate climate vulnerabilities. This underscores the need for a nexus approach to H 2 production and utilization. The H 2 economy requires integration of innovative physical and chemical processes for sustainable resource management to increase the likelihood of achieving energy-water-resource (EWR) nexus. A multi-functional microgrid (MfMG) aimed to operate on the circular economy (CE) principles ( namely resource recovery, circular supplies and product life extension ) for producing energy, water and resources ( even on on-demand basis at the site of utilization without involving logistic bottlenecks ) is conceptualized as part of our Hong Kong’s Innovation and Technology Commission’s Partnership Research Programme with EPRO Advance Technology Limited. The conceptualized MfMG integrates membrane distillation (MD) for wastewater treatment for portable/non-portable water with the Si+ chemical process for low-carbon H 2 generation coupled with a systematic chemical recovery process, the generated H 2 is then fed into the polymer electrolyte membrane (PEM) fuel cells for electricity, and the retired batteries can store the electricity. The objective is to investigate the MfMG’s design and operational feasibility to have better understanding on the scale up potential as well as its role in managing EWR nexus at different scales with an overarching goal of maximizing the utilization of high-quality MD permeate for portable/non-portable water production rather than directing it towards H 2 production. To realize this, we employed a multi-stage approach, beginning with theoretical modeling and lab-scale experiments, followed by scaling up MfMG with rated capacities ranging from 5 kW to 1 MW. Theoretical modeling considering the optimistic scenario ...

• base https://scholars.cityu.edu.hk/en/publications/ee4b4b2e-dde2-4f5b-a57a-acf9409d4d30first seen 2026-09-01 12:03:38