Phytoremediation of bauxite-derived red mud by giant reed

摘要: In 2010 the pond dam of an aluminium manufacturing plant in Hungary broke and flooded many towns with toxic red mud. At least 10 people were dead over 150 hospitalized. Bauxite residue is often referred as mud due to colour bauxite ore iron oxides. Red separated during refining process. The production 1 t alumina generally results creation 1–1.5 for environment high alkalinity, salinity trace metals. Here, we used Arundo donax L. (giant reed) uptake metals decrease pH We measured toxicity, metal availability biomass production. Results show a 25 % electrical conductivity 6 mud-polluted soil. Giant reed cultivation decreases available Cd, Pb, Co, Ni Fe. Biomass giant seedlings mud/control soil mixture was increased by 40.4 47.2 %, respectively, comparing control Our findings that promising decontaminate soils contaminated