| Abstract | 第1-4页 |
| 摘要 | 第4-22页 |
| Chapter 1 INTRODUCTION | 第22-34页 |
| ·Nitrification and Denitrification | 第23-28页 |
| ·Traditional Nitrification and Denitrification Concepts | 第23-25页 |
| ·Heterotrophic nitrification | 第25-27页 |
| ·Aerobic Denitrification | 第27-28页 |
| ·Significance of Biological Nitrogen removal processes in Wastewater Treatment | 第28-32页 |
| ·The Biological Removal of Nitrogenous Wastes in Wastewater Treatment | 第28-30页 |
| ·Significance of Biological Processes in application to Wastewater Treatment | 第30-32页 |
| ·Research Background and Significance | 第32-34页 |
| ·Background and purpose of the research | 第32-33页 |
| ·Scheme of the Research | 第33-34页 |
| Chapter 2 Heterotrophic Ammonium Removal Ability of Providencia rettgeri YL and Alcaligenes faecalis NR Bacteria | 第34-48页 |
| ·Introduction | 第34页 |
| ·Materials and Method | 第34-37页 |
| ·Isolation and Storage | 第34-35页 |
| ·Growth and Experimental Medium | 第35页 |
| ·Detection of Nitrogen Gas | 第35-36页 |
| ·Analytical methods | 第36-37页 |
| ·Results and Discussion | 第37-48页 |
| ·Identification | 第37-38页 |
| ·Heterotrophic ammonium removal –Providencia rettgeri YL | 第38-41页 |
| ·Heterotrophic ammonium removal –Alcaligenes faecalis NR | 第41-44页 |
| ·Detection of Nitrogen Gas | 第44-48页 |
| Chapter 3 Factors Affecting Ammonium Removal Ability in Providencia rettgeri YL and Alcaligenes faecalis NR | 第48-66页 |
| ·Introduction | 第48页 |
| ·Materials and Method | 第48-51页 |
| ·Preparation Medium | 第48页 |
| ·Experimental Media and Conditions for tests on Different C/N ratios | 第48-50页 |
| ·Experimental Conditions for Different Shaking Speeds | 第50页 |
| ·Experimental Conditions for Different Ammonium Concentrations | 第50-51页 |
| ·Analytical methods | 第51页 |
| ·Results and Discussion | 第51-64页 |
| ·The effect of different C/N ratios on Ammonium Removal ability on Providencia rettgeri YL | 第51-54页 |
| ·The effect of different C/N ratios on Ammonium Removal in Alcaligenes faecalis NR | 第54-57页 |
| ·Effect of different mixing speeds on Providencia rettgeri YL and Alcaligenes faecalis NR | 第57-58页 |
| ·Effect of different ammonium concentrations on Providencia rettgeri YL | 第58-61页 |
| ·Effect of different ammonium concentrations on Alcaligenes faecalis NR | 第61-64页 |
| ·Chapter Summary | 第64-66页 |
| Chapter 4 Study on the Production and Removal of Intermediate Products Hydroxylamine, Nitrite and Nitrate by Providencia rettgeri YL and Alcaligenes faecalis NR | 第66-82页 |
| ·Introduction | 第66页 |
| ·Materials and Method | 第66-69页 |
| ·Detection of Intermediates in Ammonium Metabolism | 第66-67页 |
| ·Experiment on the metabolism of hydroxylamine (NH20H) | 第67页 |
| ·Experiment on the metabolism of Nitrite (N02-) | 第67-68页 |
| ·Experiment on the metabolism of Nitrate (N03-) | 第68页 |
| ·Analytical methods | 第68-69页 |
| ·Results and Discussion | 第69-80页 |
| ·Detection of Intermediates during ammonium removal | 第69-72页 |
| ·Use of Intermediate Products as nitrogen sources | 第72-73页 |
| ·Changes in Cultures of Hydroxylamine (NH20H) | 第73-75页 |
| ·Changes in Cultures of Nitrite (N02-) | 第75-77页 |
| ·Changes in Cultures of Nitrate | 第77-80页 |
| ·Chapter Summary | 第80-82页 |
| Chapter 5 General Conclusions and Suggestions | 第82-85页 |
| ·Conclusion | 第82-83页 |
| ·Suggestions | 第83-85页 |
| References | 第85-92页 |
| Published Papers | 第92-93页 |
| Acknowledgements | 第93页 |
