Abstract
The composition of 79 samples of straw ash from seven heating plants in Sweden wasanalysed with the aim of evaluating straw ash as a fertilizer and liming agent. The variation in ashcomposition was explained mainly by ash fraction (bottom ash vs. fly ash) and straw type (wheat,barley, rye, rape) but also by heating plant. Compared with concentrations of Zn, Pb and Cd inbottom ash, levels in fly ash were 10-90 times higher. Fly ash also contained more Cu and Kcompared with bottom ash. The Cd/P ratio was 0.03 in bottom ash and 0.6 g Cd/kg P in fly ash.Ash from rape straw had a higher Ca content and liming effect compared with ash from cerealstraw; e.g., the liming effect of rape ash was more than three times higher than that of wheat ash.The liming effect varied between 3.5 and 44% CaO and depended mainly on the Ca content. Theaverage P content was 1.7% (0.2-4.4%), with slightly higher concentration in rape ash than inwheat ash.
The potential for using straw ash as a fertilizer and liming agent is discussed. Compared withcommercial fertilizers the use of bottom ash as a P fertilizer results in a lower addition of Cd.However, the total heavy metal content of straw ash poses a potential problem.
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References
Anon.: 1950, Kungl.lantbruksstyrelsens kungorelser m.m. 7 (4): 59, Sweden.
Andersson, A,: 1976, Swedish J.agric.Rex 6, 19.
Andersson, A,: 1992, Trace Elements in Agricultural Soils-Fluxes, Balances and Background Values, Swedish Environmental Protection Agency, Report 4077, Solna.
Axenbom, W., Kristensen, D. and Praks, O.: 1991, Halm som bransle for framtida elproduktion-en sammanfattning av dagslaget, R, D and D-report U (B) 1991144 (In Swedish with English summary), Vattenfall, 16287 Vallingby, Sweden, 84 pp.
Cardfelt, M.: 1989, Halmaska som godselmedel: effekt pi tungmetallupptag vid odling av jordbruksgrodor (Straw Ash as a Fertilizer: Effects on Uptake of Heavy Metals in Agricultural Crops), (In Swedish with English abstract), Swedish University df Agricultural Sciences, Department of Ecology and Environmental Research, Report 36, Uppsala.
Eriksson, J., Hammar, O., Hogborg, E., Jansson, S. L., Vahtras, K. and Wallen, C. C.: 1970, Viixtodlingslaru del 1, Stockholm: LT, Sweden.
Ghaly, A. E. and Al-Taweel, A.: 1990, Energy Sources 12, 131.
Hansen, M. W., Hansen, A., Jensen, L. R. and Nielsen, C.: 1987, Forundersogelse af halmfyrede kraftvarmevaerker, dk-TEKNIK, TR-sag nr. 1986–1352–86. 356, Soborg, Denmark.
Ivarsson, E. and Nilsson, C.: 1988, Smelting Temperatures of Straw Ashes With and Without Additives, Laboratory tests and computer analysis: Special report 153, 1988, Department of farm buildings, Swedish University of Agricultural Sciences, Lund, (in Swedish with English summary), 36 pp.
Johnsson, B., Brundin, S., Wunsche, U., Theander, O., Mathiesen, B., Fogelfors, H., NorCn, O., Ekstrom, N., Hadders, G., Thyselius, L. and Nilsson, E.: 1986, Bdnslen frin jordbruksgrodor (Fuels from Agricultural Crops: Production Estimates, Cost of Raw Products and Value of By-Products), Projekt Agrobioenergi, Rapport for etapp 5 (In Swedish with English summary), Swedish University of Agricultural Sciences and Swedish Institute of Agricultural Engineering, Uppsala.
Kjellerup, V.: 1983, Halmfyringsaskens indhold af plantenaeringsstoffer, Statens Planteavlsforsog, Meddelelse nr. 17 10, Lyngby, Denmark.
Kjellstrom, T., Lind, B., Linnman, L. and Elinder, C. G.: 1975, Arch.Environ.Health 30, 321.
Liem, H., Sandstrom, M., Carne, A., Blomqvist, L., Thurenius, B. and Rydevik, U.: 1983, Studies on the Leaching and Weathering Processes of Ashes Formed from Combustion of Peats and Biomasses, Statens Natumirdsverk PM 1775 (In Swedish with English summary), National Environment Protection Board, Solna, Sweden.
National Environment Protection Board: 1987, Kadmium i miljon, Report 33 17, Solna, Sweden.
National Environment Protection Board: 1994, Biobransleaska i kretslopp, Naturvirdsverket informerar, juni 1994, Solna, Sweden.
National Environment Protection Board: 1994: 2, Kungorelse med foreskrifter om skydd for miljon, siirskilt marken, nar avloppsslam anvands i jordbruket, Solna, Sweden.
Nielsen, C. and Westborg, S.: January 1992, IEA Round Robin Analyses of Straw and Straw Ashes, Dk-teknik, Soborg, Denmark, Prepared for IEA-Biomass Conversion Task VII, Conversion of Straw and Similar Agricultural Wastes.
Nilsson, J. and Timm, B.: 1983, Miljoeffekter av ved-och torvforbranning, Statens Naturvirdsverk PM 1708, National Environment Protection Board, Box 1302, 17 125 Solna, Sweden.
Ravn, T. J.: 1981, ‘Halmens kemiske opbygning’, in Stokholm, R. (ed.), Halmfiring, Tolvmandsforeningerne, Axelborg, 1620 Kopenhamn V, Denmark.
Svanberg, O.: 1971, De svenska skordeprodukternas innehill av vaxtnaringsamnen, Meddelande 37, National Laboratory for Agricultural Chemistry, Uppsala, Sweden.
SIS: 1995, Solid fuels-Determination of the amount of unburned material in solid residues from combustion, SS 187187, Swedish Standards Institution, Box 3295, 10366 Stockholm, Sweden.
Tan, K. H.: 1994, Environmental Soil Science, Marcel Dekker, Inc., New York, p. 241.
Thellesen, H. Z.: 1988a, Halmens egenskaper ti1 fyringsformil. Slaggedannelse, Tillaeg ti1 beretning nr. 40, Statens jordbrugstekniske Forsog, Bygholm, 8700 Horsens, Denmark.
Thellesen, H. Z.: 1988b, Stovemission fra halmfyring, Orientering nr. 57, Statens jordbrugstekniske Forsog, Kopenhamn, Denmark.
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Sander, ML., Andrén, O. Ash from Cereal and Rape Straw Used for Heat Production: Liming Effect and Contents of Plant Nutrients and Heavy Metals. Water, Air, & Soil Pollution 93, 93–108 (1997). https://doi.org/10.1023/A:1022179708289
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DOI: https://doi.org/10.1023/A:1022179708289