(C) Andres Sanz, Unsplash
Modelling and Assessment

Nexus Modelling // Involving the Water–Energy–Food Nexus in Integrating Low-Income and Isolated Communities

By Brenda Cansino-Loeza and José María Ponce-Ortega. This work presents a general mathematical programming model for satisfying water, energy, and food needs in isolated and low-income communities involving different process integration approaches. As a case study, the community with the lowest index of poverty and marginalization from the State of Guerrero in Mexico is presented. The problem consists in determining the optimal and sustainable configuration to satisfy the energy, water, and food demands of the inhabitants. Also, the use of waste-to-energy technologies is proposed to handle the municipal solid waste correctly and obtain valuated products from wastes to reduce the environmental impact.

A multi-objective analysis is presented considering the consumption of fresh water, the greenhouse gas emissions, and the cost of the integrated system as objective functions.

The results show that it is possible to satisfy the water, energy, and food needs in isolated communities accounting for integrated processes. Besides, it is possible to obtain trade-off solutions considering contradicting objectives. To trade-off the proposed objectives, it is presented a multistakeholder approach which is capable to find the compromise solution which is the point where the objectives are minimized simultaneously. The results show that the compromise solution is very close of the Utopian Point, which indicates that is possible to obtain a solution that satisfies almost entirely the minimum of the objectives.



ACS Sustainable Chemistry and Engineering


January 2019


ACS Sustainable Chem. Eng. 2019, 7, 1399−1418

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Ecosystems / WEFE Nexus

Scholarship // Graduate Research Assistants (Food-energy-water systems (FEWS))

The Advanced Science Research Center (ASRC) at the Graduate Center of the City University of New York (CUNY) has openings for two graduate students to work on an NSF-funded collaborative research project, involving seven research institutes including academia and national laboratories. The goal of this project is to explore contemporary and future challenges to food-energy-water systems (FEWS) of the Northeastern and Midwestern United States, in light of climate change and its extremes.

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Publication // The Water-Food-Energy Nexus: Insights into resilient development

By SAB Miller and WWF (World Wildlife Fund). This collaborative report looks at 16 countries or states, comparing the ways in which their development patterns have managed their different mixes of resources and different capacities to make use of those resources.

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Ecosystems / WEFE Nexus

Publication // The Development of the Water-Energy-Food Nexus as a Framework for Achieving Resource Security: A Review

By Gareth B. Simpson and Graham P. W. Jewitt. This paper presents a study of the evolution of the water-energy-food (WEF) nexus since its rise to prominence in policy and development discourses in 2011. Drawing from an extensive review of published literature, the paper presents various interpretations of the concept while also considering the novelty of the WEF nexus.

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