Paper Details

Potential use of cyanobacteria species in phycoremediation of municipal wastewater

Hossein Azarpira, Pejman Behdarvand, Kondiram Dhumal, Gorakh Pondhe

DOI: https://dx.doi.org/10.12692/ijb/4.4.105-111

Int. J. Biosci. 4(4), 105-111. February, 2014. (PDF)

Abstract:

The treatment of municipal wastewater becomes effective by using microalgae which are superior as the wide range of toxic and other wastes can be reduced with them. The present work is aimed to examine the efficiency of locally available blue green algae such as Oscillatoria limosa and Nostoc commune in removal of various nutrients to prevent further deterioration of water quality. The phycoremediation experiments were conducted at Department of Environmental Sciences, University of Pune, Pune-7, India using randomized complete block design with three replications of each treatment. The results of present investigation clearly indicated that both the algal species viz Oscillatoria limosa and Nostoc commune are highly efficient for removal of NO3-2, PO4-2, SO4-2, Cl-and for reducing EC values. The average reduction was between 84 to 98 %. The pollutant removal efficiency was increased with decreasing concentration of wastewater. Amongst the selected algae Oscillatoria limosa was the best candidate as compare to Nostoc commune. It was concluded that the cyanophycea members would be the best options for phycoremediation.