Effective Bioremediation of Zinc(II) with Fusarium sp. in Batch and Continuous Studies

Abstract

Designing desirable approach for batch and continuous methods of activity for profoundly effective removal of zinc(II) is of practical importance, given the steady, cost-effective, environmentally friendly attribute. This article offers an answer for foster a continuous stirred tank bioreactor (CSTR) containing single- and two-phase reactors for the viable continuous removal of zinc(II) from aqueous solution by making use of Fusarium sp. collected from soil under growing conditions. The different development stages Fusarium sp. were tried, including initial metal concentration, pH and growth rate in batch bioreactors. The maximum removal of zinc(II) in the batch studies indicated 63.9 mg/g, at controlled pH: 5.0; and at initial 500 mg/L zinc(II) concentration, which is almost of comparable quantity to the most extreme removal of zinc(II) (52.8 mg/g) obtained in the continuous mode of operation. A continuous flow system operated in staged manner was found to be the ideal strategy for obtaining almost complete removal at lower concentration focus up to 100 mg/L in a single stage bioreactor and a multistage reactor at higher zinc(II) concentrations.