Variable renewable energy sources for powering reverse osmosis desalination, with a case study of wave powered desalination for Kilifi, Kenya

Leijon, Jennifer; Salar, Dana; Engström, Jens; Leijon, Mats; Boström, Cecilia

doi:10.1016/j.desal.2020.114669

Cited by 46 publications

(11 citation statements)

References 28 publications

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“…Despite this strength as an energy source for desalination, the cost of CSP electricity is still higher than that of PV or wind [34]. Wave energy is still in a pre-commercial state and more research and experimental work is needed for coupling to SWRO [35].…”

Section: Current and Future Challengesmentioning

confidence: 99%

2024 roadmap on membrane desalination technology at the water-energy nexus

Politano,

Al-Juboori,

Alnajdi

et al. 2024

J. Phys. Energy

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Water and energy are two strategic drivers of sustainable development, intimately interlaced and vital for a secure future of humanity. Given that water resources are limited, whereas global population and energy demand are exponentially growing, the competitive balance between these resources, referred to as the water-energy nexus – is receiving renewed focus.The desalination industry alleviates water stress by producing freshwater from saline sources, such as seawater, brackish or groundwater. Since the last decade, the market has been dominated by membrane desalination technology, offering significative advantages over thermal processes, such as lower energy demand, easy process control and scale-up, modularity for flexible productivity, and feasibility of synergic integration of different membrane operations. The exciting new frontier of sustainable mining of seawater concentrates is accelerating the appearance of a plethora of innovative membrane materials and methods for brine dehydration and selective extraction of trace ions, although under the sword of Damocles represented by cost feasibility for reliable commercial application. On the other hand, among several emerging technologies, reverse electrodialysis (SGP-RED) was already proven capable – at least at the kW scale–of turning the chemical potential difference between river water, brackish water, and seawater into electrical energy. Efforts to develop a next generation of Ion Exchange Membranes exhibiting high perm-selectivity (especially toward monovalent ions) and low electrical resistance, to improve system engineering and to optimize operational conditions, pursue the goal of enhancing the low power density so far achievable (in the order of a few W per m2).This Roadmap takes the form of a series of short contributions written independently by worldwide experts in the topic. Collectively, such contributions provide a comprehensive picture of the current state of the art in membrane science and technology at the water-energy nexus, and how it is expected to develop in the future

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Section: Current and Future Challengesmentioning

confidence: 99%

2024 roadmap on membrane desalination technology at the water-energy nexus

Politano,

Al-Juboori,

Alnajdi

et al. 2024

J. Phys. Energy

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“…Reverse osmosis is now considered one of the successes of desalination techniques (with 60% of installed global capacity). In addition, it is the process that combines best with renewable energy [11][12][13][14], due to its:…”

Section: Renewable Energy and Romentioning

confidence: 99%

Modeling of Reverse Osmosis Water Desalination Powered by Photovoltaic Solar Energy

Aimani¹

2023

GEET

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Sea water contains 35 g/L of salt, while the maximum concentration for water intended for human consumption is 400 mg/L (fresh water). Freshwater is an essential component in our daily life; but its availability is on the decline due to population growth and climate change. To meet the demand for fresh water in regions where reserves are insufficient, several countries have adopted seawater desalination. Several physical methods allow the production of fresh water from seawater, one of them being distillation and reverse osmosis, and there is great potential to use renewable energy sources such as solar photovoltaics. In order to model the phenomenon of reverse osmosis solar-based desalination, the author presents generalities of deslination technologies in the first part of this paper. The second part is devoted to the presentation of different water desalination systems combined to renewable energy, and their benefits and drawbacks from different perspectives. In the third part, the author describes the model of a PV water desalination system using Matlab Simulink software. Based on the simulation results, the author concludes this paper with the prospects of the presented work.

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“…Together they read that solar powered devices can turn salt water into clean drinking water and produce electricity at the same time. This expertise concerns desalinating or purifying water in places in which fresh water is scarce or contaminated (Leijon, Salar, Engström, Leijon, & Boström, 2020). This inspired Maja, who drew the dirty water as five waves at the bottom of the rectangular piece of paper (Fig.…”

Section: The Story Of Solar Energymentioning

confidence: 99%

Stories of water: preschool children’s engagement with water purification

Postila

2021

Cult Stud of Sci Educ

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This article aims to investigate environmental education in preschools by taking Donna Haraway’s call of staying with the trouble together with preschool children seriously, here-and-now, in explorations of dirty water and water purification. This posthumanist inspired research project draws theoretically and methodologically on the writings of Haraway, Anna L. Tsing and Isabelle Stengers. The empirical data consist of three stories from a multidisciplinary intervention research project in the Stockholm region in Sweden, collected from collaboratively produced data such as films, photographs, drawings, and notes from the project. The study can be seen as an invitation to preschools to engage in the debate on climate change and to create a togetherness around environmental concerns, not only in the future, but also here-and-now in the preschool.

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Variable renewable energy sources for powering reverse osmosis desalination, with a case study of wave powered desalination for Kilifi, Kenya

Cited by 46 publications

References 28 publications

2024 roadmap on membrane desalination technology at the water-energy nexus

2024 roadmap on membrane desalination technology at the water-energy nexus

Modeling of Reverse Osmosis Water Desalination Powered by Photovoltaic Solar Energy

Stories of water: preschool children’s engagement with water purification

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