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標題: Biotoxicity evaluation of fly ash and bottom ash from different municipal solid waste incinerators
作者: Chou, J.D.
Wey, M.Y.
Liang, H.H.
Chang, S.H.
關鍵字: Fly ash;Bottom ash;TCLP;PBET;Vibrio fischeri light inhibition test;physiologically-based extraction;vibrio-fischeri;heavy-metals;combustion;toxicity;residues;bioassay;japan;lead;soil
Project: Journal of Hazardous Materials
期刊/報告no:: Journal of Hazardous Materials, Volume 168, Issue 1, Page(s) 197-202.
Different types of municipal solid waste incinerator (MSWI) fly and bottom ash were extracted by TCLP and PBET procedures. The-biotoxicity of the leachate of fly ash and bottom ash was evaluated by Vibrio fischeri light inhibition test. The results indicate the following: (I)The optimal solid/liquid ratio was 1:100 for PBET extraction because it had the highest Ph and Cu extractable mass from MSWI fly ash. (2) The extractable metal mass from both fly ash and bottom ash by PBET procedure was significantly higher than that by TCLP procedure. (3) The metal concentrations of fly ash leachate from a fluidized bed incinerator was lower than that from mass-burning and mass-burning combined with rotary kiln incinerator. (4) The TCLP and PBET leachate from all MSWI fly ash samples showed biotoxicity. Even though bottom ash is regarded as a non-hazardous material, its TCLP and PBET leachate also showed biotoxicity. The pH significantly influenced the biotoxicity of leachate. (C) 2009 Elsevier B.V. All rights reserved.
ISSN: 0304-3894
DOI: 10.1016/j.jhazmat.2009.02.023
Appears in Collections:環境工程學系所

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