| Abstract |
| The aim of this study is to investigate the efficiency of iron(II) sulphate (FeSO4·7H2O) doses on the growth rate of Chlorella vulgaris (C. vulgaris) with simultaneous removal of nutrient from the wastewater. Five different samples of wastewaters each having 500 mL of volume is prepared by the addition of varied dose of ferrous sulphate i.e., 0 g/L, 0.1 g/L, 0.2 g/L, 0.3 g/L and 0.4 g/L and further analyzed for the growth of C. vulgaris along with the removal of nutrient. Results show that the growth rate of C. vulgaris for 0.1 g/L iron(II) sulphate is measured significantly higher than the other samples. It is observed that the growth rate is greater than 23.46%, 75.00%, 75.62% and 78.09% comparing to the samples of 0 g/L, 0.2 g/L, 0.3 g/L and 0.4 g/L, respectively. Further, 0.1 g/L sample removes high content of COD (77.43%) and TN (66.27%) as compared to other samples. Therefore, an optimum dose of iron(II) sulphate ie., 0.1 g/L favors greatly the growth rate of biomass along with an enhanced removal of nutrients from the wastewaters. |
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| Key Words |
| Biomass, microalgae, Iron fertilization, nutrient removal, wastewater |
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