Abstract
ABSTRACT Selenium (Se), a metalloid typically natural in origin, is also present in coal washery by-products such as fly-ash stockpiles. The removal of Se in coal washery by-products can be achieved through various bio-physico-chemical processes. This study investigated the phytoremediation of Se from post coal process wastes using Brassica juncea species. The selected plant species were grown in coal process wastes enriched with either a growth soil mix or hydroponic substrates. Successful Se extraction (48% and 28%) was achieved from both mixes. The tested plant species also accumulated other heavy metals (Arsenic, Cadmium, Copper, Lead) along with selenium in the plant biomass.
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