Microalgae gained a lot of attention in recent years because of their possible use in pollution management. They can be cultivated in unproductive habitats like nutrient rich wastewater as microalgae require high amount of nutrients for their growth that helps to reduce the pollution load from the environment. During this study six waste grown microalgal species, viz. Limnothrix planctonica, Hapalosiphon hibernicus, Scytonema hoffmanii, Dolichospermum affine, Oocystis polymorpha and Tetradesmus obliquus sourced from different wastewater habitats were utilized for remediation of wastewater collected from effluent treatment pond (ETP) of Emami Paper Mill, Balasore. To measure efficiency of wastewater utilization, the physico-chemical parameters of standardised wastewater were ascertained before and after utilization by all the tested species of algae under controlled culture conditions in laboratory. The phycoremediation results revealed that H. hibernicus, O. polymorpha and L. planctonica played better role for removal of pollutants from wastewater followed by T. obliquus and S. hoffmanii. H. hibernicus showed better performance by completely removing (100%) colour, turbidity, iron and phosphate from the wastewater. pH was corrected to normal after treatment by all the test algal species except S. hoffmanii. Moreover, the cyanobacterial species were found to be more efficient in terms of removal of nutrients like nitrate, silica, potassium and sodium as compared to green algae.
2023 © PSR. ALL Rights Reserved. Privacy Policy | Terms of Service