Využití nízkomolekulárních organických kyselin na zpřístupnění zinku v půdní suspenzi pro indukovanou rhizofiltraci

Abstract

Thesis is focused on the research of the low molecular weight organic acids influence on zinc mobility in the soil suspension. The used soils are polluted from atmospheric deposition by heavy metals like As, Cd, Pb and Zn. For the rhizofiltration is important to arise water soluble concentration of heavy metals to support their uptake of plant and arise the phytoremediation factor. Acetic, tartaric and citric acids were used to enhancement of zinc water soluble concentration. Conclusions demonstrated positive influence of the used organic acids on arising low pH on growing mobility of zinc. The used organic acids had not the straight dependence on arising of zinc water soluble concentration in soil fractions. Hypothetic dependence of zinc concentration in suspension on the strenght of used organic acids was not confirmed.