ABSTRACT
The unicellular, fresh water alga Scenedesmus obliquus [the test organism of this investigation] was used to study its effect on the removal of nitrogen and phosphorous from industrial wastewater, collected from Mogama drain. Wastewater contents of nitrate, urea, ammonia and phosphorus were determined. The average annual values of these nutrients were calculated. The alga was grown on either wastewater as a culture medium or on the other media. The algal biomass, protein content, phosphorous content, etc., were determined. Wastewater-grown cells were found to contain a high quality and quantity of protein. Algal biomass production was also high. Active transport was the mechanism by which these nutrients were taken up from the wastewater. Scenedesmus can be used successfully for the removal of phosphorus and nitrogen from industrial wastewater as a depollution technique, with the production of high quality protein. This technique may be applied on a semi-industrial scale for animal feeding using bioreactors