An investigation on the potential of metal recovery from the municipal waste incinerator in Taiwan

Nae Wen Kuo, Hwong Wen Ma, Ya Mei Yang, Teng Yuan Hsiao, Chin Ming Huang

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28 Citations (Scopus)


This study aimed to identify distribution of metals and to estimate the amount of these metals that can be potentially recovered from incineration residues. First, the partitioning behavior of Cr, Cu, Fe, Cd, Al, Zn, and Pb in bottom ash and fly ash was investigated in one large municipal waste incinerator in Taiwan. In addition, the material flow analysis (MFA) method was used to estimate the material flux of metals within incinerator plant, and to calculate the amount of metal recovery. According to the findings of this study, six metals (Fe, Al, Cu, Zn, Cr, and Pb) concentrated in bottom ash mostly, while Cd existed primarily in fly ash. The weight percentages of Fe (4.49%), Al (5.24%), Cu (1.29%), Zn (2.21%), and Pb (0.58%) in incinerator ash are high, and even higher than the compositions of natural minerals. Finally, the amount of Cr, Cu, Fe, Cd, Al, Zn and Pb that can be potentially recovered from incineration residues will reach 2.69 × 102, 1.46 × 104, 4.91 × 104, 6.92 × 101, 5.10 × 104, 1.85 × 104 and 4.66 × 103 ton/yr, respectively.

Original languageEnglish
Pages (from-to)1673-1679
Number of pages7
JournalWaste Management
Issue number11
Publication statusPublished - 2007 Aug 30


ASJC Scopus subject areas

  • Waste Management and Disposal

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