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PV-Li-ion-micropump membrane systems for portable personal desalination

McHenry, M.P., Brady, P.V. and Hightower, M.M. (2016) PV-Li-ion-micropump membrane systems for portable personal desalination. AIMS Energy, 4 (3). pp. 444-460.

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This research presents a technical simulation of theoretically portable desalination systems utilising low-energy and lightweight components that are either commercially available or currently in development. The commercially available components are small-scale flexible and portable photovoltaic (PV) modules, Li-ion battery-converter units, and high pressure low voltage brushless DC motor-powered micropumps. The theoretical and conventional small-scale desalination membranes are compared against each other: low-pressure reverse osmosis (RO), nanofilters, graphene, graphene oxide, and graphyne technology. The systems were designed with the identical PV-Li-ion specifications and simulation data to quantify the energy available to power the theoretical energy demand for desalinating a saline water at 30,000–40,000 ppm total dissolved solid (TDS) to reliably supply the minimum target of 3.5 L d−1 of freshwater for one theoretical year. The results demonstrate that modern portable commercially available PV-battery systems and new generations of energy-efficient membranes under development have the potential to enable users to sustainably procure daily drinking water needs from saline/contaminated water resources, with the system exhibiting a net reduction in weight than carrying water itself.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: AIMS Press
Copyright: © 2016, Mark P. McHenry, et al.
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