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Modeling and Optimization of Water–Food–Energy Nexus for Malaysia’s Agricultural Sector

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  • Qi Siah

    (Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia)

  • Haslinda Zabiri

    (Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia
    CO2 Research center (CO2RES), Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia)

Abstract

The water–food–energy (WFE) nexus is a strategic system that integrates different separated sectors by using their interconnectedness to reduce trade-offs and allow sustainable development by preventing future resource insecurity. Traditionally, the water, energy, and food sectors operate individually and result in different challenges such as resource scarcity, conflicts in the uses of upstream and downstream hydro systems, and power supply crises due to serious water pollution. Reports so far have only implemented the WFE nexus in countries and cities outside of Malaysia. In addition, there is yet to be a model in literature revolving only on optimizing the agricultural sector’s resources distribution. Hence, this paper aims to develop the first systematic and integrated model for optimal planning of resource allocation in Malaysia’s agricultural sector. The novelty and contribution of this research could be concluded as: (1) multi-objective planning incorporating economic and environmental factors such as economic benefits and carbon emission limit, (2) focusing on the agricultural sector considering geologically-specific crops, livestock, and residents, (3) considering the potential waste recycle systems including wastewater treatment and biomass treatment. The superstructure framework developed based on the case study in Perak, Malaysia aids the implementation of the WFE nexus system locally where trade-offs and synergies between the different sub-units are modelled. From the results, it can be concluded that irrigated paddy crops could contribute to a higher profit compared to palm oil and rubber crops. Thus, future development can be focused on irrigated paddy crops while meeting other constraints and demands to ensure the resources are optimally utilized. The multi-objective optimization solved using MINIMAX algorithm also provides decision-makers with a guideline on how to implement WFE nexus locally in the agricultural sector.

Suggested Citation

  • Qi Siah & Haslinda Zabiri, 2022. "Modeling and Optimization of Water–Food–Energy Nexus for Malaysia’s Agricultural Sector," Sustainability, MDPI, vol. 14(3), pages 1-31, February.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:3:p:1799-:d:742279
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    References listed on IDEAS

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    1. Howe, Paul, 2019. "The triple nexus: A potential approach to supporting the achievement of the Sustainable Development Goals?," World Development, Elsevier, vol. 124(C), pages 1-1.
    2. Damour, C. & Hamdi, M. & Josset, C. & Auvity, B. & Boillereaux, L., 2012. "Energy analysis and optimization of a food defrosting system," Energy, Elsevier, vol. 37(1), pages 562-570.
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