The present study of this work is sewage waste water which collected from Indira Institute of Engineering and Technology, located at Chennai, India. The waste water was treated with three micro-algal strains like Chlorella, Scenedesmus, and Nostoc in waste stabilization pond. The Phyco-remediation method is alternative methodology for treating waste water at cheaper cost. In this research work, experimental result had shown that maximum reduction of BOD, COD, TDS, PO4, NH4+-N in Chlorella treatment. Nostoc gave lower reduction of Physico-Chemical Parameters compared to other two micro algal strains. After 24 days incubation period, micro - algae biomass harvested by using muslin cloth. Scenedesmus algae produced more biomass which can be used for manure production. This work suggested that algae thrive in nutrient-rich waters like municipal waste waters (sewage) at the same time purifying these wastes while producing a biomass suitable for bio-fuels and manure production.

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