Das, Bhaskar2018-05-152023-10-192018-05-152023-10-192018ROLL NO. 09615205https://gyan.iitg.ac.in/handle/123456789/934Supervisors: Sanjukta Patra and Tapas K MandalPhenol is a xenobiotic released in wastewaters of industries as coal industries, phenol manufacturing, pharmaceuticals, dying, petrochemicals, pulp mill etc. Owing to high ecological toxicity risks of phenol it is considered a priority pollutant requiring efficient phenol removal technologies from industrial wastewater. Biological treatment of phenol has gained wide interest owing to its advantages of complete phenol mineralization and cost effectiveness. Phenol degradation capabilities of bacteria and fungi have been profoundly studied compared to that in algae. Six algal strains were screened for phenol degradation ability of which Spirogyra, Closterium and two unidentified algae were isolated from sewage wastewater, one diatom strain BD1IITG was isolated from petroleum refinery wastewater and Chlorella Pyrenoidosa (NCIM 2738) was obtained from National Collection of Industrial Microorganisms, Pune.enENVIRONMENTThesis