Disposal of large-scale industrial effluents are of great concern because the water bodies get contaminated where they are released. The normal physicochemical properties of water and soil are affected by their disposal into the environment. In this study, the potential degradation of industrial effluents from the tyre manufacturing industries, Balasore, Odisha was investigated by two marine cyanobacterial species isolated from Odisha Coast (Phormidium bohneri and Lyngbya martensiana). Both species were capable of removing the contaminants well at 50% diluted concentration, however, P. bohneri substantiate is more capable of degrading the pollutant rapidly and also demonstrates high resistant against its toxicity. This effluent contain organic matter that is rich in nutrients such as nitrates and phosphates which support the growth of cyanobacteria in it. The amount of removal of phosphorous, nitrites, sulphates, ammonia and changes in colour and pH of the effluents were studied in details. The results revealed 81.48, 98.30, 50.55 and 90.62% and 78.57, 74.32, 27.34 and 65.67% decrease in the amount of phosphorous, nitrite, sulphate and ammonia by P. bohneri and L. martensiana, respectively after 16 days of treatment. In this study, also, the effect of effluents on the growth, pigments and protein content of cyanobacteria were studied. The results shows that the cyanobacteria P. bohneri is proven to be a more efficient agent for pollution control having potential role in bioremediation.

Keywords: Bioremediation, cyanobacteria, environment, Industrial effluents, marine.