The Use of Cyclonic Ashes of Fluidized Bed Burning of Coal Mine Refuse for Long-Term Immobilization of Metals in Soils
In 1990, 3 ha of a highly metal polluted acid sandy soil at the site of a former pyrometallurgical zinc smelter (at Maatheide, situated in Lommel, Belgium) was treated with a combination of cyclonic ashes and compost. 8 The reduction of soil phytotoxicity by the treatment in 1990 was immediate. 8 After soil treatment and sowing of a mixture of metal tolerantAgrostis capillarisandFestuca rubra, a healthy vegetation cover developed. Five years later, an evaluation of the durability of the soil treatment and revegetation was made. 9 The vegetation was still healthy and regenerating by vegetative means and by seed. Results from this field experience and from the simulation experiment are described below. The short-and long-term working mechanisms of the cyclonic ashes treatment in metal contaminated soils is hypothesized.
KeywordsSimulation Period Untreated Soil Enzyme Capacity Metal Silicate Acid Sandy Soil
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- 1.De Boodt, M. F., Application of the sorption theory to eliminate heavy metals from waste waters and contaminated soils, Interactions at the soil colloid soil solution interface. NATO ASI Series, Series E: Applied Sciences, vol 190, Bolt, G. H., De Boodt, M. E, Hayes, M. H. B., and McBride M. B., Kluwer Academic Publishers, Dordrecht, The Netherlands, 1991, 293–320.Google Scholar
- 3.Vangronsveld, J., Van Assche, F., and Clijsters, H., Immobilization of heavy metals in polluted soils by application of a modified alumino-silicate: biological evaluation, Environmental Contamination, Barcelo, J, CEP Consultants, Edinburgh, UK, 1990, 283–285.Google Scholar
- 4.Vangronsveld, J., Cammaer, C., Van Assche, F., and Clijsters, H., Reclamation of a “desert-like” site in the North East of Belgium: evolution of the metal pollution and experiments in situ, Heavy Metals in the Environment, Vol. I, Farmer, J.G., CEP, Consultants, Edinburgh, UK, 1991, 58–61.Google Scholar
- 5.Vangronsveld, J., and Clijsters, H., A biological test system for the evaluation of metal phytotoxicity and immobilization by additives in metal-contaminated soils, Metal Compounds in Environment and Life, 4 (Interrelation Between Chemistry and Biology), Merian, E., and Haerdi, W, Northwood, UK, 1992, 117–125.Google Scholar
- 6.Vangronsveld, J., Sterckx, J., Van Assche, F., and Clijsters, H., Rehabilitation studies on an old nonferrous waste dumping ground: effects of metal immobilization and revegetation, Heavy Metals in the Environment., Allan, R. J., and Nriagu J. O., CEP Consultants, Edinburgh, UK, 1993, 583–586.Google Scholar
- 11.Vangronsveld, J., Case studies in the field—Zn, Cd, Pb contaminated kitchen gardens, Metal-contaminated soils, In situ inactivation and phytorestoration, Vangronsveld, J., and Cunningham, S. D., Springer Verlag, Heidelberg and R. G. Landes Company, TX, USA, 1998, 219–225.Google Scholar
- 14.Cottenie, A., F.A.O. Soil and plant testing as a basis of fertilizer recommendation, Food and Agricultural Organization of the United Nations, Rome, 1978.Google Scholar
- 15.Gerth, J., and Brummer, G., Adsorption und festlegung von nickel, zink und cadmium durch goethit (—FeOOH), Fresenius Zeitschrift fur Anal. Chem., 316, 616–620, 1983.Google Scholar
- 17.Gerth, J., Untersuchungen zur adsorption van nickel, zink und cadmium durch bodentonfractionene unterschiedlichen stoflbestandes und verschiedene bodenkomponenten, Dissertation, University of Kiel, Kiel, Germany 1985.Google Scholar
- 18.Hargé J. C., Spéciation comparée du zinc, du plomb et du manganèse dans des sols contaminés, PhD dissertation, Université Joseph Fourier, Grenoble, France, 1997.Google Scholar