NICOLETA MIRELA MARIN, LUOANA FLORENTINA PASCU, IOANA STANCULESCU, OVIDIU IORDACHE, DENISA JIANU, LUCIAN PETRESCU, IRINEL ADRIANA BADEA MAIZE STALK AS NATURAL ION EXCHANGER FOR HAZARDOUS POLLUTANTS This paper recommends maize stalk as a cheap natural ion exchanger. Ion exchange equilibrium was studied using thermodynamic and kinetic models. The results showed a high selectivity towards cationic species of antimony (III), molybdenum (VI), lead (II) and arsenium (III). Waste waters and sediments from tailing ponds samples were analysed.
Keywords: maize stalk, natural ion exchanger, heavy metals, waste, mining, tailing pond