Metal fixation under soil pollution and wastewater reuse

The relation of heavy metals fixation to their bioavailability, beet plant uptake, plant dry matter yield, and pollution indices was studied under the effect of an artificially polluted soil. The experiment was conducted in a greenhouse, using a randomized block statistical design, including 12 treatments (T1, T2, … T12), each one being composed of a mixture of heavy metal combinations of Zn, Mn, Cd, Co, Cu, Cr, Ni, and Pb, where each metal was participating in the treatment with 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 and 22 mg/kg, respectively. It was found that the results obtained underlined the importance of the elemental interaction’s impact on heavy metal fixation and on metal bioavailability, their plant uptake, plant yields, and pollution indices.