Cement Manufacturers Association (CMA)

Page 69 In chemical recycling process, waste plastics are used as raw materials for petrochemical process or as reluctant in a metal smelter. In mechanical recycling process, shredding new plastic product. In thermal recycling process, plastics are used as alternative fuel. Mechanical Recycling Process Contaminated plastic such laminated or painted plastic are removed by grinding, cryogenic method, abrasion/abrasive technique, solvent stripping method and high temperature aqueous based paint removal method. Magnetic separators are used for ferrous metals separation, while eddy current separators are used for nonferrous metals separation. Air separation system is used to separate light using a number of techniques like turboelectric separator, high speed spectroscopy. In hydro cyclones separation technique, plastic fractions are separated using density separation technique, which is wettability. In turboelectric separation technique, plastic resins are separated on the basis of surface charge transfer phenomena. Equipment used in second level WEEE/E-wate treartment Shredder For size reduction into size enabling the majority of the ferrous material to be separated from the non-ferous/insulation and plasatic fraction Eddy Current Separator 1 For separation of the heavy mixed metal fraction Heavy Pre-Granulator For size reduction of the material prior to separation in the Eddy Current separator 2 Eddy Current Separator 2 For separation of the light mixed metal fraction Heavy Granulaor