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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/15474


    Title: Element and PAH constituents in the residues and liquid oil from biosludge pyrolysis in an electrical thermal furnace
    Authors: Chiang, Hung-Lung;Lin, Kuo-Hsiung;Lai, Nina;Shieh, Zhu-Xin
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: Metal;Polycyclic aromatic hydrocarbons (PAHs);Pyrolysis;Sludge
    Date: 2014-05-01
    Issue Date: 2014-08-08 13:27:59 (UTC+8)
    Abstract: Biosludge can be pyrolyzed to produce liquid oil as an alternative fuel. The content of five major elements, 22 trace elements and 16 PAHs was investigated in oven-dried raw material, pyrolysis residues and pyrolysis liquid products. Results indicated 39% carbon, 4.5% hydrogen, 4.2% nitrogen and 1.8% sulfur were in oven dried biosludge. Biosludge pyrolysis, carried out at temperatures from 400 to 800°C, corresponded to 34-14% weight in pyrolytic residues, 32-50% weight in liquid products and 31-40% weight in the gas phase. The carbon, hydrogen and nitrogen decreased and the sulfur content increased with an increase in the pyrolysis temperature at 400-800°C. NaP (2 rings) and AcPy (3 rings) were the major PAHs, contributing 86% of PAHs in oven-dried biosludge. After pyrolysis, the PAH content increased with the increase of pyrolysis temperature, which also results in a change in the PAH species profile. In pyrolysis liquid oil, NaP, AcPy, Flu and PA were the major species, and the content of the 16 PAHs ranged from 1.6 to 19 μg/ml at pyrolysis temperatures ranging from 400 to 800°C. Ca, Mg, Al, Fe and Zn were the dominant trace elements in the raw material and the pyrolysis residues. In addition, low toxic metal (Cd, V, Co, and Pb) content was found in the liquid oil, and its heat value was 7,800-9,500 kcal/kg, which means it can be considered as an alternative fuel.
    Relation: Science of the Total Environment 481,533-541
    Appears in Collections:[環境工程與科學系] 期刊論文

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