This involves modification of Titanium Oxide by incorporating other metals into it. Taking small portion of the mixed compound and incorporating it to the clay, molding a pot like filter out of it, drying and burning at high degree. When cool the clay pot is placed on top of a another pot or bucket and both placed in the sun where the energy released kills the micro-organisms or reduces the metal ions.Titanium oxide acts as a catalyst in solar disinfection, thus purifying large quantities of water in a short duration water is purified and the pot also acts like a filter for suspended matter.
Idea No. 508