Immobilisation of As, Cd, Pb and Zn in agricultural soils by the use of organic and inorganic additives

R. Vácha, E. Podlešáková, J. Němeček and O. Poláček
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R. Vácha: Research Institute for Soil and Water Conservation, Prague, Czech Republic
E. Podlešáková: Research Institute for Soil and Water Conservation, Prague, Czech Republic
J. Němeček: Research Institute for Soil and Water Conservation, Prague, Czech Republic
O. Poláček: Research Institute for Soil and Water Conservation, Prague, Czech Republic

Plant, Soil and Environment, 2002, vol. 48, issue 8, 335-342

Abstract: The efficiency of the application of organic and inorganic additives on the reduction of mobility and transfer of As, Cd, Pb and Zn from the soil into the plants was observed. The dung, compost, acid peat and muck presented organic additives. Synthetic zeolite - type Pc of cubic structure, loamy shale and dolomite limestone presented inorganic additives. Five soil types were used during the testing (arenic regosol, typic cambisol, dystric cambisol, typic chernozem and typic fluvisol). The changeover of the mobility of As, Cd, Pb a Zn in the soil (the ratio of mobile and total contents, sequential analysis) and the transfer of the elements from the soil into the plants (the vegetables, cereals and fodder plants) were investigated. The results showed the primary importance of the soil pH value on the behaviour of potentially toxic elements and their intake by the plants. The efficiency of the use of organic additives strongly depended on the quality of the organic matter. Inorganic additives on the base of the sorbents worked in the case of mobile hazardous elements (Cd, Zn). The efficiency of the soil additives was strongly influenced by the soil type.

Keywords: hazardous elements; soil remediation; immobilization; soil additives; the dung; the compost; acid peat; the muck; synthetic zeolite; loamy shale; dolomite limestone (search for similar items in EconPapers)
Date: 2002
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DOI: 10.17221/4377-PSE

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