Applications : Hydrated Lime or Calcium Hydroxide is extensively used in the following Industrial Applications : Manufacturing of Bleaching Powder . Process Water Demineralization   . Waste Water Neutralization . Neutralization of Acidic effluents . Fluxing or Clarifying. Drying of mud or sludge. Stabilization of hazardous waste . Dehairing of Hides in Tanneries. Flue gas Desulphurisation. Calcium Hypochlorite Bleaching of Paper pulp.