Phytoremediation of Cr(VI) ion contaminated soil using Black gram (Vigna mungo): Assessment of removal capacity

Abstract Phytoremediation is the best system among other traditional strategies to treat polluted locales, which utilizes the diverse plant species ready to collect or corrupt distinctive contaminants. Vigna mungo was examined for its ability to remove Cr(VI) ions from the contaminated soil. pH values of clay soil and soil associated with different concentrations of Cr(VI) ion were studied. In different pot culture experiments, five levels of Cr(VI) ion concentrations (5, 25, 50, 75, 100 mg/L) were tested in soil. Vigna mungo is considered as the best-performing example because of its high capacity to gather various metals in their shoots and roots without being influenced by intemperate metal substance. Vigna mungo’ s growth (Weight and length), translocation factor (TF) and bioaccumulation factor (BAF) were investigated. In the presence of oxygen, the reduction of toxic Cr(VI) to Cr(III) ion was catalyzed by soluble enzymes. The trivalent state of chromium is poorly toxic, most stable and soils easily immobilize Cr (III). Moreover, the estimation of the translocation factor (TF) of Cr(VI) ion increased by increasing the concentration of Cr(VI) ion in soil. The investigation infers that Vigna mungo plant was progressively great for Cr(VI) ion take-up from tainted soils.