Comment on
Could wastewater plants simply heat up water past 500C to decompose all chemicals and output clean water?
Molten Salt Nuclear Reactors (like the one China's making with thorium) operate at something like 700* C to generate electricity. With the waste heat, we could desalinate water. Instead of Yucca Mountain as a nuclear waste repository, it becomes Yucca Mountain Molten Salt Nuclear Reactor and brackish groundwater distillation for Las Vegas.