Elsevier

Desalination

Volume 67, December 1987, Pages 33-41
Desalination

An electrodialysis sea water desalination system powered by photovoltaic cells

https://doi.org/10.1016/0011-9164(87)90229-3Get rights and content

Abstract

An electrodialysis sea water desalination system powered by photovoltaic (PV) cells is beeing developed. In this sort of system, the most important subject is a way to apply the varying electric power from the PV cells directry to electrodialysis with a small capacity lead battery. We use a partially desalinated water (PDW) storage system for this. When a large electric output from the PV cells is obtained, sea water is desalinated to partially desalinated water (PDW: salinity of which is between sea water and fresh water) and when a small output is obtained, the desalination from PDW to fresh water is completed. In this system, as varying outputs from the PV cells are used directly in electrodialysis, the capacity of the lead battery is reduced, and an economical system is realized. A demonstration plant (capacity: 10m/day) was constructed for this system, and has been operating since June, 1986.

References (2)

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