Algal Bioassay Studies in Waste Water

In order to assessing whether algae can reduce the pollution concentration of the effluents by absorbing the nutrients, it is found that effluents can effectively be treated by employing algal organisisms such as Oscillatoria and Stigeoclonium species and these organisms are frequently found in the polluted waters and they were recorded as pollution tolerant forms. In the laboratory procedures out of the several media tested Modified CHU No. 10 medium was found to be quite suitable for both the test organisms. It was found that up to 87% and 85% of phosphate uptake was achieved by Oscillatoria and Stigeoclonium respectively with 13% and 16% increase of D.O. in the effluents by the tenth day. In case of organic matter Oscillatoria removed 73% and Stigeoclonium 70% up to tenth day.