How important is desalination?

Because 97% of the world’s water is too salty to drink, desalination will become more and more important for the 80% of the Earth’s population which lives within coastal regions. The biggest drawback of desalination technology is the energy requirement. The most obvious energy source to use is solar, the abundant natural energy source driving the water cycle. That idea is presented clearly is a supportive excerpt from the journal:

Desalination Volume 265, Issues 1-3, 15 January 2011, Pages 107-111

Solar energy is the most ancient source, and also it is the origin of almost all fossil and other renewable type. Solar energy is a never-ending and especially clean energy source that has a potential to supply a considerable portion of the world’s future energy demands. It is freely available (especially in poor regions of the world) and could be easily harnessed by various scientifically and technologically feasible methods. Utilization of solar energy is going to develop and its engineering and economic feasibility depends on how well the provided energy can compete with common sources of energy.

Optimization of solar flat collector inclination
Hamid Moghadam, Farshad Farshchi Tabrizi and Ashkan Zolfaghari Sharak
Department of Chemical Engineering, University of Sistan and Baluchestan, Zahedan, Iran


About gflaplante

Science teacher at Suffield Academy (Biology, Chemistry, Anatomy, Genetics, Electives, 20 Global Problems)
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