The inertization disposal method used in Catalonia, Spain involves firstly the removal of all packaging materials, (paper, cardboard, plastic), from the pharmaceuticals then grinding the pharmaceuticals and adding a mix of water, cement and lime to form an homogenous paste which is then transported in the liquid state by concrete mixer truck to a landfill and decanted into the normal urban waste. The paste then sets into a hard harmless substance dispersed amongst the urban waste.
The process is relatively inexpensive and can be done in a relatively unsophisticated manner. The main requirements are a grinder or road roller to crush the pharmaceuticals, a concrete mixer, a labor force and supplies of cement, lime and water .