Quaternary Adsorption Effect of Nickel (II), Antimony (III), Manganese (II) and Copper (II) onto Living Two Green Microalgae

Abstract

This study aimed to investigate Ni, Sb, Mn and Cu adsorption from aqueous solution by Chlorella and Scenedesmus algae. The competitive adsorption efficiency of nickel (Ni 2+), antimony (Sb 3+), manganese (Mn 2+) and copper (Cu 2+) onto two living microalgae strains was studied from multi-metal aqueous solution for 24h incubation time. After exposure, chlorophyll a-b, total carbohydrate and Atomic force microscopy (AFM) imaging were performed. Then adsorption isotherms models of metal ions were determined based on Langmuir and Freundlich isotherms. The adsorption capacity in multi-metal system was determined 6.47 mgg-1 for antimony, 5.96 mgg-1 for manganese, 28.57 mgg-1 for copperand 10.71 mgg-1 for nickel (Cu>Ni>Sb>Mn) by Chlorella respectively, whereas, and 10.82 mg g-1 for antimony, 7.07 mgg-1 for manganese, 27.09 mgg-1 for copper and 9.71 mgg-1 for nickel(Cu>Sb>Ni>Mn) by Scenedesmus cells. According to AFM images, deformation was detected in two algae cell walls treated with heavy metals compared to untreated cells. For this study, Freundlich adsorption model best fitted the data for all metal ions with 1/n value <1. As a result, when the results obtained in the study are revealed that Chlorella and Scenedesmus cells were an effective adsorbent for removal of the four heavy metals, especially Cu 2+ ions from aqueous solutions due to its high efficiency of Cu adsorption.

Comparison Of Heavy Metal Absorption Of Some Algae Isolated From Altınapa Dam Lake (Konya)

“…Considering the results of their study, Şentürk & Yıldız, (2018b) revealed that Chlorella and Scenedesmus cells are effective adsorbents in removing four heavy metals, especially Cu + 2 ions from aqueous solutions, due to the high efficiency of Cu adsorption. The results of these reports were found to be consistent with the findings obtained in our study.…”