Microalgae-Based Low-Cost Bioremediation for Heavy Metal Removal in Decentralized Water Systems: Evaluation of Coelastrella sp. (MH923011)

Abstract

Different concentration of Lead, Nickel and Cadmium (10, 20, and 30) ppm were applied to evaluate the ability of Coelastrella sp. (MH923011) to them for removal by the action of microalgae. These heavy metals obtained from the aqueous solution. Experimental treatments were conducted under controlled laboratory conditions at different metal concentrations and exposure periods. Algal growth was monitored by measuring optical density (O.D.) through the experiment. The results show a significant reduction in Lead, Nickel and Cadmium concentrations in treated samples, accompanied by adaptive changes in microalgal growth. According to these findings, it shows the ability of Coelastrella sp. to perform a high tolerance rate and metal uptake.