There are two solar ...
Published by Rosemary Jones
There are two solar desalination methods which also purify water where the contaminants have a boiling point higher than that of water or are destroyed by heat. One is the fresnel lens design suitable for positioning over contaminated well and for smaller domestic situations, and the second for inland lakes and offshore use. Both are zero carbon, inexpensive to maintain, and require no chemicals or membranes. Details from rosjonesenvedu@hotmail.com