https://techxplore.com/news/2020-02-simple-solar-powered-desalination.html
"Unlike some desalination systems, there is no accumulation of salt or
concentrated brines to be disposed of. In a free-floating configuration,
any salt that accumulates during the day would simply be carried back
out at night through the wicking material and back into the seawater,
according to the researchers."
"It is described in a paper appearing today in the journal Energy and Environmental Science,
authored by MIT doctoral students Lenan Zhang and Lin Zhao, postdoc
Zhenyuan Xu, professor of mechanical engineering and department head
Evelyn Wang, and eight others at MIT and at Shanghai Jiao Tong
University in China"
"the team's demonstration device can achieve an overall efficiency of 385
percent in converting the energy of sunlight into the energy of water
evaporation."
