Characterization of Pulp and Paper mill effluent and its Biological treatment by Isolated bacterial Consortia

Pulp and paper mill released large amount of wastewater which affects the environment. These mills uses highly toxic chemical for pulping and bleaching processes. The intention of this research paper is to identify predominant bacteria in pulp and paper mill effluent. In addition to evaluate the degradation efficiency of bacterial isolates and combination of bacterial isolates by shake flask method. Biological treatment methods involve the utilization of bacterial consortia found to be effective in removal of colour, lignin and COD. This study indicates that bacterial consortia treatment gave a reduction of colour 55%, lignin 25% and COD 64% in 72 hrs at 370C incubation temperature and pH 7.