This study aims to prepared CaCO3 and CaO from eggshell waste in order to increase the
value of the waste become useful material in the industrial field. The use of quail eggshell
waste as an alternative material is a solution to reduce environmental pollution. Quail
eggshell is a waste with high calcium content therefore, it can be used as an alternative
substitute for CaO/CaCO3. The synthesis of CaO/CaCO3 from quail eggshell was using
solid-state reaction in a ball milling process with a variation of milling time. As synthesized …