Abstract:This study evaluated the treatment efficiency of pulp and paper effluent by immobilization of four dominant bacterial strains, which were screened by the method of statistical analysis. Results showed that the average removal of CODCr was 50.34% (Agrobacterium sp.), 34.57% (Bacillus sp.), 57.58% (Gordonia sp.), 43.09% (Pseudomonas putida.), respectively. High CODCr degradation (70.87%) was achieved by immobilization of four dominant bacterial strains, which was improved by 5.57% comparing with the treatment by free bacterium. |