2006 Volume 2 Issue 4 Pages 341-346
An objective of this study is recycle-flow analysis on used cellular phone based on total materials requirement (TMR) as a case study of recycle-flow analysis which reflects quality of resources. This paper consists of following contents: a) estimation of recycle-flow, b) quantitative analysis of cellular phone composition based on experimental observations, and c) analysis on recycle-flow based on TMR.
Above-mentioned estimation and analysis gave us the following results. 1) A recovery ratio of used cellular phone is estimated as 31%. 2) Used cellular phone mainly consists of Au (41%), Cu (23%), Pd (19%) and Pt (7%) based on TMR, while main composition (weight base) of that is plastics (69%), Cu (11%), glass (8%) and Fe (6%). 3) Material recovery-ratio (weight base) in recycle process is 11%, and that (TMR base) is 90%. 4) Material recovery ratio (TMR base) in recycle system, which is taken the recovery ratio into consideration, is only 28%.
