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Behaviour of inorganic constituents of municipal sewage sludge during fluidized-bed combustion
Hartman, M., Pohořelý, M. and Trnka, O. Behaviour of inorganic constituents of municipal sewage sludge during fluidized-bed combustion Chemical Papers, Vol.61, No. 3, 2007, 181-185
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Hartman, M.
Pohořelý, M.
Trnka, O.
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| Title |
Behaviour of inorganic constituents of municipal sewage sludge during fluidized-bed combustion
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
3
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| ISSN |
0366-6352
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| Start page |
181
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| End page |
185
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
290000 Engineering and Technology
290600 Chemical Engineering
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| Abstract/Summary |
The fate of main heavy metals in municipal sewage sludge (As, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, and Zn) was investigated using a fluidized-bed reactor. The behaviour of metals in the incinerator was explored by comparing metal contents in the two main ash streams: bottom (in-bed) ash and ash separated by a cyclone (cyclone-catch ash). All metals showed enrichment in the cyclone ash. The ash originating from sewage sludge is thermally quite stable consisting of quartz, hematite, spar(s), mica(s), apatite, and anhydrite. It does not soften nor becomes sticky and does not tend to agglomerate at temperatures up to 950°C.
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