title: An investigation on the potential of metal recovery from the municipal waste incinerator in Taiwan.
abstract: 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 x 10(2), 1.46 x 10(4), 4.91 x 10(4), 6.92 x 10(1), 5.10 x 10(4), 1.85 x 10(4) and 4.66 x 10(3) ton/yr, respectively.
authors: Graduate Institute of Tourism and Health Science, National Taipei College of Nursing, P.O. Box 22-96, Taipei 10699, Taiwan. ibis@ntcn.edu.tw
authors: Nae-Wen
authors: NW
authors: Kuo
authors: Hwong-Wen
authors: HW
authors: Ma
authors: Ya-Mei
authors: YM
authors: Yang
authors: Teng-Yuan
authors: TY
authors: Hsiao
authors: Chin-Ming
authors: CM
authors: Huang
mesh_terms: D002244:Carbon / Q000737:chemistry; D002947:Cities; D060729:Coal Ash; D003247:Conservation of Natural Resources; D052918:Environmental Restoration and Remediation / Q000379:methods*; D017745:Incineration / Q000295:instrumentation*; D008670:Metals / Q000032:analysis / Q000302:isolation & purification*; D052638:Particulate Matter / Q000737:chemistry; D012037:Refuse Disposal / Q000295:instrumentation*; D012722:Sewage / Q000737:chemistry; D013624:Taiwan
chemical_list: D060729:Coal Ash; D008670:Metals; D052638:Particulate Matter; D012722:Sewage; D002244:Carbon