(cest2017_00650) Study of potential availability of heavy metals to phytoremediation to use of fly ash from biomass combustion

摘要

Fly ashes, formed as a result of burning biomassare a new class of by-products of combustion and due tothe large variety of these materials their chemicalcomposition has not been fully determined. Their use islimited, despite the fact that their production is increased.The this work presents results of studies on the possibilityof limiting the potential availability of Cu, Mn, Pb and Znfor plants by use of inorganic stabilizer - fly ash frombiomass combustion. In this study was evaluatedusefulness of fly ash from biomass to binding mobilefractions of heavy metals (Cu, Mn, Pb and Zn). Theinvestigations executed using three extraction tests inwhich the use the following extraction solutions: 1 MHNO3 - acid soluble forms (As), 0.05 M EDTA -bioavailability forms (Bio), 2.5% CH3COOH -exchangeable forms (Ex). The values of followingparameters such as: Mobility Index (MI), ContaminationFactor (CF), Pollution Load Index (PLI), Geo -accumulation Index (Igeo) and Ecological Risk Index (RI)were definite and determined suitability test soil stabilizer.Furthermore, the multivariate statistical analysis wascarried out.