The study of molybdenum leaching from soils fertilized with sewage sludge and their composts
BOŻYM M., RAJMUND A.
Please cite as: CHEMIK 2014, 68, 10, 874–879
Changes of molybdenum content in soils fertilized with sewage sludge and composts during lysimeter experiment was researched. Additionally, the mobility of this metal was measured using selected extractants (H2O, 0.1M HCl, 1M HCl). Sewage sludges and composts were characterized by more than twice larger molybdenum content than in soils. Nevertheless, the percentage of Mo mobile forms in the soil was similar, regardless of the type of fertilization. Leaching of molybdenum depended on the ionic strength of the extractant. The lowest molybdenum content was determined in aqueous extracts, the highest in 1M HCl. The statistical analysis shows that the leaching of molybdenum from sewage and compost was influenced by pH, overall metal and organic matter content. In case of leaching from soils, the impact of these factors has not been...