| Abstract:In this experiment, six strains of bacteria, Agrobacterium sp., Bacillus sp., Enterobacter. Cloacae., Gordonia sp.，Pseudomonas putida. and Pseudomonas stutzeri. were selected as the starting strains in pulping and papermaking wastewater treatment, from treatment efficiency point of view four of the strains Agrobacterium sp., Bacillus sp., Gordonia sp. and Pseudomonas putida. were chosen by using statistical analysis method. Then bioaugmentation of aerobic granular sludge was achieved successfully with adding these screened strains. The experiment results demonstrated that the CODCr and chroma of the effluent treated by bioaugumentaion system were 176 mg/L and 150 respectively, they were lower than the CODCr (213 mg/L) and chroma (206) of the effluent without bioaugumentaion system treatment. CODCr removal efficiency increased from 45.1% to 60.0% with bioaugumentaion system treatment. |
