Abstract
Phycoremediation is an eco‐friendly, emerging and economically feasible technique for the removal of heavy metals from the environment. In this study, the bioremediation potential of the cyanobacterium Arthrospira platensis was explored by treating it with various concentrations of chromium(VI) (0.01, 0.05 and 0.1 mM) and as well with tannery effluent containing Cr. Arthrospira platensis was grown in Zarrouk's medium (pH 9.5) at room temperature. The effect of Cr(VI) on A. platensis was studied via biochemical parameters (chlorophyll, protein), physicochemical parameters (total solids, total dissolved solids, total suspended solids) and analytical parameters (Fourier transform IR (FTIR), atomic absorption spectroscopy). The results indicated that A. platensis had a maximum adsorption potential of 98.5% and a reduction potential of 73.5% against Cr(VI). The FTIR analysis revealed that there is an interaction of A. platensis with Cr. These findings suggest that A. platensis can be used for phycoremediation of industrial effluents contaminated with Cr(VI).
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