Solar Seawater Distillation by Flexible and Fully Passive Multistage Membrane Distillation
KAUST DepartmentEnvironmental Science and Engineering
Biological and Environmental Sciences and Engineering (BESE) Division
Water Desalination and Reuse Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Environmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Physical Science and Engineering (PSE) Division
Embargo End Date2022-05-27
Permanent link to this recordhttp://hdl.handle.net/10754/669316
MetadataShow full item record
AbstractSolar-assisted distillation is considered promising to solve the freshwater supply for off-grid communities. In this work, a passive and flexible multistage membrane distillation (F-MSMD) device is devised to produce freshwater via solar distillation with the latent heat of vapor condensation being recycled to enhance its energy efficiency. By designing a siphon effect, source water is continuously wicked into the evaporation layer and the concentrated brine flows out of the device before reaching saturation, which successfully solves the otherwise challenge of salt accumulation inside the device. To achieve such siphon flow, the recycled paper is prepared from spent copy paper and used as the evaporation layer for efficient water delivery owing to its large pore size and high hydrophilicity. An eight-stage F-MSMD device exhibits a stable clean water production rate at 3.61 kg m<sup>-2</sup> h<sup>-1</sup> in the newly designed siphon-flow mode. This work provides a green route for designing a solar-assisted distillation device.
CitationWang, W., Shi, Y., Zhang, C., Li, R., Wu, M., Zhuo, S., … Wang, P. (2021). Solar Seawater Distillation by Flexible and Fully Passive Multistage Membrane Distillation. Nano Letters. doi:10.1021/acs.nanolett.1c00910
PublisherAmerican Chemical Society (ACS)
Except where otherwise noted, this item's license is described as This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.nanolett.1c00910.
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