- 作者: 黃武章、陳偉誠、邱冠彰、朱穗君
- 作者服務機構: Department of Environmental Science and Engineering, National Ping-Tung University of Science and Technology, Ping-Tung 91201, Taiwan, R.O.C.
- 中文摘要: Two series of size-fractionated combusted residues, a bag-house ash and a scrubber residue, from a municipal solid waste incinerator (MSWI) were prepared and extracted by means of sequential chemical extraction (SCE) procedures proposed by Tessier. Concentrations of water-soluble phase, exchangeable phase, carbonated phase, Fe/Mn oxide phase, organic matter phase, and residual phase bound amphoteric metals (Pb and Zn) were obtained, and have been compared with those of single batch extraction of toxic characteristic leaching procedure (TCLP). In each size fraction of baghouse ash or scrubber residue, lead or zinc shows a common phenomena that the TCLP value is always lower than the content of the water-soluble fraction. For lead, baghouse ash has a significant size-dependent distribution on the water-soluble phase to perform a size-dependent test of lead in the TCLP test. The zinc TCLP data having less size dependence might be due to that neither the baghouse ash nor the scrubber residue has a size-dependent distribution on the water-soluble zinc phase.
- 英文摘要: --
- 中文關鍵字: Lead; Fly ash; Amphoteric ions.
- 英文關鍵字: --