Pharmaceutical blister is one of the major components of
medical plastic wastes, and its recycling should be taken into
consideration in order to improve hospital sustainability and
reduce wastes (Lee et al., 2002). In addition, PVC wastes pollute the
environment and shorten the life of incinerator as generating
hazardous HCl gas, dioxins containing Cl, etc, and moreover, PVC
plastics not only create difficulty in recycling process, but also
decrease recycling ratio of plastics by forming compounds or
deteriorating the nature of other plastics (Ali and Siddiqui, 2005;
Lungu, 2004; Park et al., 2007).