Contents of various forms of cadmium, copper, lead and chromium in soil after application of untreated and composted tannery sewage sludge

K. Gondek
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K. Gondek: H. Kołłątaj Agricultural University of Cracow, Poland

Plant, Soil and Environment, 2006, vol. 52, issue 5, 199-210

Abstract: Fertilization with tannery materials positively influenced the soil pH and increased the content of alkaline cations in soil. After four years of investigations organic carbon content decreased most in the soil fertilized with untreated sludge, mineral salts and in the control soil. Irrespective of fertilization used and year of studies cadmium occurred mainly in most mobile fractions (mobile, exchangeable and bound to manganese oxides). Copper was mainly bound in fractions less available to plants. After four years of studies an increase in mobile copper forms was registered in all treatment soils. Lead in the soil was present mainly in the form bound to organic matter and amorphous iron oxides. Distribution of lead points to the small share of this metal in the mobile and exchangeable forms, both immediately after fertilization applied and after four years of studies. Chromium became fixed in fractions less available to plants, mainly bound to iron oxides and in residual fraction. On the other hand, an apparent effect of fertilization with materials of tannery origin on this element total forms content was registered.

Keywords: tannery sludge; compost; vermicompost; cadmium; copper; lead; chromium (search for similar items in EconPapers)
Date: 2006
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DOI: 10.17221/3430-PSE

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