Fly Ash And Its Advantages And Disadvantages Upsc Ias
May 23, 2019 Fly ash and its Advantages and Disadvantages UPSC IAS. It is a fine powder, which is the by-product of burning coal in thermal power plants. Its Composition- Fly ash includes substantial amounts of oxides of silica, aluminum and calcium. Element like Arsenic, Boron, Chromium, lead etc. are also found in trace concentrations.