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Issue 2, 2015

Solar thermal decomposition of desalination reject brine for carbon dioxide removal and neutralisation of ocean acidity

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Abstract

Desalination plants could become net absorbers (rather than net emitters) of CO2. Thermal decomposition of salts in desalination reject brine can yield MgO which, added to the ocean, would take up CO2 through conversion to bicarbonate. The process proposed here comprises dewatering of brine followed by decomposition in a solar receiver using a heliostat field.

Graphical abstract: Solar thermal decomposition of desalination reject brine for carbon dioxide removal and neutralisation of ocean acidity

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Article information


Submitted
20 Sep 2014
Accepted
12 Jan 2015
First published
12 Jan 2015

Environ. Sci.: Water Res. Technol., 2015,1, 131-137
Article type
Communication

Solar thermal decomposition of desalination reject brine for carbon dioxide removal and neutralisation of ocean acidity

P. A. Davies, Environ. Sci.: Water Res. Technol., 2015, 1, 131 DOI: 10.1039/C4EW00058G

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