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- W2440261320 abstract "This thesis investigated the properties of bottom and fly ashes originating from a bubbling fluidised bed boiler (120 MW) using two different fuel mixtures (i.e. Fuel mixture A: coal, wood and peat; and B: wood and peat) and of the green liquor dregs originating from the associated semichemical pulp and board mill in relation to the potential utilisation of these residues from various aspects. The total concentrations of As, Cd, Cr, Cu, Ni, Pb, Zn and Hg in the bottom ashes were lower than the maximum allowable concentrations for these elements in forest fertilisers. The total Ca concentrations in bottom ashes A (2.4%; d.w.) and B (3.4%; d.w.) were lower than the legal requirement of 6.0% (d.w.) for ash used as a forest fertiliser. The total Ca concentrations in fly ashes A (6.4%; d.w.) and B (11.0%; d.w.) were higher than the minimum limit value of 6.0% (d.w.), but the concentration of As in fly ashes A (46.9 mg/kg d.w.) and B (41.3 mg/kg; d.w.) exceeded the maximum limit value of 40 mg/kg (d.w.). Only bottom ash B could be used as a forest fertiliser, provided some additional Ca is used. The bottom ashes both fulfilled the Finnish regulations on waste recovery in earth construction. Due to the elevated total concentration of PAH (23 mg/kg; d.w.) and extractable concentrations of Mo (3.9 mg/kg; d.w.) and Se (0.2 mg/kg; d.w.) in fly ash A, this residue cannot be used in covered structures. Due to the elevated concentration of PAH (90 mg/kg; d.w.) in fly ash B, this residue cannot be used in covered and paved structures. However, the utilisation of these residues as an earth construction agent is still possible, but an environmental permit would be required. According to the sequential extraction studies, extractable concentrations of most of the elements in the fly ash A were higher than those in the bottom ash A. The extractability of various elements, both in the bottom and fly ashes A, varied widely. Most of the elements did not occur as readily soluble and mobile forms in these ashes, which supports their utilisation instead of final disposal. The green liquor dregs were strongly alkaline (pH 11.7) and had a high neutralizing capacity (34.2% Ca equivalents; d.w.). These results support the utilisation of this residue e.g. as a soil conditioning agent or pH buffer for acidic soils. The relatively low total concentrations of non-process elements in the green liquor dregs and low partitioning of these elements in the sequential extraction procedure support the re-use of this residue. However, if green liquor dregs are to be utilised, an environmental permit is needed. In terms of human health aspects, the careful handling of fly ash and green liquor dregs is recommended to prevent material dusting problems and the penetration of material particles across the human gastrointestinal tract. In order to promote the utilisation of ashes and green liquor dregs, efforts to develop Finnish legislation on waste utilisation is needed. ; Tyossa tutkittiin puolikemiallisen sellu- ja kartonkitehtaan leijupetikattilan (120 MW)…" @default.
- W2440261320 created "2016-06-24" @default.
- W2440261320 creator A5015848368 @default.
- W2440261320 date "2013-01-01" @default.
- W2440261320 modified "2023-09-26" @default.
- W2440261320 title "Utilisation aspects of ashes and green liquor dregs from an integrated semichemical pulp and board mill" @default.
- W2440261320 cites W1816378521 @default.
- W2440261320 cites W1964279456 @default.
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- W2440261320 cites W1971647918 @default.
- W2440261320 cites W1971938920 @default.
- W2440261320 cites W1976467289 @default.
- W2440261320 cites W1980249814 @default.
- W2440261320 cites W1980587665 @default.
- W2440261320 cites W1981415703 @default.
- W2440261320 cites W1984128628 @default.
- W2440261320 cites W1985450463 @default.
- W2440261320 cites W1986323330 @default.
- W2440261320 cites W1988752806 @default.
- W2440261320 cites W1988801924 @default.
- W2440261320 cites W1990219580 @default.
- W2440261320 cites W1991431455 @default.
- W2440261320 cites W1993780918 @default.
- W2440261320 cites W1996566497 @default.
- W2440261320 cites W1997570509 @default.
- W2440261320 cites W1999607482 @default.
- W2440261320 cites W2000118483 @default.
- W2440261320 cites W2000188021 @default.
- W2440261320 cites W2003539776 @default.
- W2440261320 cites W2005629205 @default.
- W2440261320 cites W2009222536 @default.
- W2440261320 cites W2009569928 @default.
- W2440261320 cites W2015688252 @default.
- W2440261320 cites W2015869525 @default.
- W2440261320 cites W2016635786 @default.
- W2440261320 cites W2028084132 @default.
- W2440261320 cites W2031215780 @default.
- W2440261320 cites W2036098743 @default.
- W2440261320 cites W2042688551 @default.
- W2440261320 cites W2044843176 @default.
- W2440261320 cites W2046530662 @default.
- W2440261320 cites W2048069128 @default.
- W2440261320 cites W2052393515 @default.
- W2440261320 cites W2057606448 @default.
- W2440261320 cites W2057670025 @default.
- W2440261320 cites W2062349847 @default.
- W2440261320 cites W2065359946 @default.
- W2440261320 cites W2066298313 @default.
- W2440261320 cites W2073248053 @default.
- W2440261320 cites W2082667075 @default.
- W2440261320 cites W2087187841 @default.
- W2440261320 cites W2100684401 @default.
- W2440261320 cites W2103474203 @default.
- W2440261320 cites W2103710662 @default.
- W2440261320 cites W2103998352 @default.
- W2440261320 cites W2109978804 @default.
- W2440261320 cites W2110626439 @default.
- W2440261320 cites W2111641049 @default.
- W2440261320 cites W2115728254 @default.
- W2440261320 cites W2115828428 @default.
- W2440261320 cites W2120288443 @default.
- W2440261320 cites W2128602790 @default.
- W2440261320 cites W2145045681 @default.
- W2440261320 cites W2146240331 @default.
- W2440261320 cites W2146421660 @default.
- W2440261320 cites W2147710101 @default.
- W2440261320 cites W2148394930 @default.
- W2440261320 cites W2162154591 @default.
- W2440261320 cites W2166402480 @default.
- W2440261320 cites W2167035949 @default.
- W2440261320 cites W2178496409 @default.
- W2440261320 cites W2188556830 @default.
- W2440261320 cites W2217060513 @default.
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- W2440261320 cites W2597413566 @default.
- W2440261320 cites W2614817119 @default.
- W2440261320 cites W2629100642 @default.
- W2440261320 cites W2884604364 @default.
- W2440261320 cites W2884695071 @default.
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