Investigation on biosorption of V (III), Ti(IV), and U(VI) ions from a contaminated effluent by a newly isolated strain of Galdieria sulphuraria

ABSTRACT

Algal biomass has a great potential for cleaning metal pollutants from wastewaters. In the present study, biosorption of three metals i.e., vanadium, titanium, and uranium which are appeared in contaminated effluent during the uranium ore mines processing or in sludge resulting from pure UO₂ processing are investigated by a new strain of Galdieria sulphuraria, SBU-SH1 KY651246, which is isolated from a sulfur hot spring. The optimum biosorption situations and efficiency of isolated alga are investigated for each metal. Looking at the results, it can be concluded that G. sulphuraria SBU-SH1 is amenable to biosorption and has a favorable efficiency.

KEYWORDS:

• Galdieria sulphuraria
• bio-sorption
• heavy metal
• uranyl ions

Acknowledgments

The experiments in this work were carried out in Jaberibn Hayyan Research Lab. and their assistance to prepare all used material is appreciated.

Notes

1. 4.2 × 10⁻² mmol/L to 1.2 × 10⁻¹ mmol/L for U, 1.9 × 10⁻¹ mmol/L to 5.8 × 10⁻¹ mmol/L for V, and 0.2 mmol/L to 0.6 mmol/L for Ti.

2. 4.2 × 10⁻² mmol/L to 1.2 × 10⁻¹ mmol/L for U, 1.9 × 10⁻¹ mmol/L to 5.8 × 10⁻¹ mmol/L for V, 0.2 mmol/L to 0.6 mmol/L for Ti.

3. 0.2, 0.4, and 0.6 mmol/L for Ti.

4. 4.2 × 10⁻², 8.4 × 10⁻², and 1.2 × 10⁻¹ mmol/L for U.

5. 1.9 × 10⁻¹, 3.9 × 10⁻¹, and 5.8 × 10⁻¹ mmol/L for V.