| ABSTRACT | 第4-5页 |
| 摘要 | 第6-14页 |
| CHAPTER 1 INTRODUCTION | 第14-36页 |
| 1.1 Introduction and Background | 第14-15页 |
| 1.2 Practical significance of secondary biological treatment technology | 第15-16页 |
| 1.3 Sewage Purification Process with Activated Sludge Method and Process Introduction | 第16-20页 |
| 1.3.1 Sewage Purification Process with Activated Sludge Method | 第16-19页 |
| 1.3.2 Introduction to Activated Sludge Process Technology | 第19-20页 |
| 1.4 The sludge production and its component features | 第20-22页 |
| 1.5 Process of flow of sludge for activated sludge process | 第22-26页 |
| 1.5.1 Return of sludge | 第22-23页 |
| 1.5.2 Excess sludge | 第23-26页 |
| 1.6 Sludge adsorption mechanism research | 第26-34页 |
| 1.6.1 Sludge adsorption mechanism and status | 第26-32页 |
| 1.6.2 The researches on the mechanism of the precipitation | 第32-34页 |
| 1.7 The content and meaning | 第34-36页 |
| CHAPTER 2 EXPERIMENTAL MATERIALS AND METHODS | 第36-43页 |
| 2.1 The experimental materials | 第36-37页 |
| 2.2 The experimental device | 第37-39页 |
| 2.3 Reagents and equipment | 第39-40页 |
| 2.4 Analysis Method | 第40-42页 |
| 2.6 Experimental method and steps | 第42-43页 |
| CHAPTER 3 SLUDGE ADSORPTION AND FLOCCULATION TREATMENT OFSEWAGE OF EXPERIMENTAL RESEARCH IN EACH SEASON | 第43-85页 |
| 3.1 Determining the most suitable amount of sludge rate per waste water under thebest Timing of Mixing | 第43-49页 |
| 3.1.1 Testing Procedure | 第43-49页 |
| 3.2 The influence of dissolved oxygen and aeration time in each season | 第49-80页 |
| 3.2.1 The influence of sludge adsorption efficiency in proper sludge volume ratiowith system during spring time | 第49-57页 |
| 3.2.2 The influence of sludge adsorption efficiency in proper sludge volume ratiowith system during summer time | 第57-65页 |
| 3.2.3 The influence of sludge adsorption efficiency in proper sludge volume ratiowith system during autumn time | 第65-72页 |
| 3.2.4 The influence of sludge adsorption efficiency in proper sludge volume ratiowith system during winter time | 第72-80页 |
| 3.3 Mechanism analysis of activated sludge adsorption of pollutants in the flocculation | 第80-82页 |
| 3.4 Summary of the best aeration period for each different dissolve oxygen (DO) concentration in variety of seasons | 第82-85页 |
| CHAPTER 4 THE EXPERIMENTAL STUDY OF REINFORCEMENT OFFLOCCULANTS COMBINED WITH SLUDGE ADSORPTION | 第85-94页 |
| 4.1 The influence of reinforcement of flocculants combined with sludge adsorptionand different doses of APAM and CPAM | 第86-92页 |
| 4.2 Summary of Reinforcement of Flocculants combined with sludge adsorptionand different doses of APAM and CPAM | 第92-94页 |
| CHAPTER 5 CONCLUSION AND RECOMMENDATION | 第94-96页 |
| 5.1 Conclusion | 第94-95页 |
| 5.2 Recommendations | 第95-96页 |
| REFERENCE | 第96-103页 |
| STATMENT ON PAPER PUBLICATION AND SCIENTIFIC RESEARCHPARTICIPATION | 第103-104页 |
| ACKNOWLEDGEMENTS | 第104-105页 |
