| 摘要 | 第1-5页 |
| Abstract | 第5-9页 |
| 1 Introduction | 第9-25页 |
| ·Literature review | 第15-21页 |
| ·The aim and main contents of the research | 第21-24页 |
| ·The purpose of research | 第24-25页 |
| 2 Interaction between the microorganism and minerals | 第25-35页 |
| ·Soil habitat | 第32页 |
| ·Process of monitoring of soil habitat | 第32-35页 |
| 3 The mechanism of microbial applicable for improvement of soil | 第35-39页 |
| ·Mineral precipitation | 第35-36页 |
| ·Mineral transformation | 第36-37页 |
| ·Biopolymers and biofilms | 第37-39页 |
| 4 Role of microorganism | 第39-44页 |
| ·Microbial diversity on the surface of earth | 第39-42页 |
| ·Brief introduction of Bacteria | 第42-43页 |
| ·Microbial activities | 第43-44页 |
| 5 Denitrification | 第44-54页 |
| ·Geochemical basis for carbonate mineral precipitation | 第44-46页 |
| ·Precipitation of Calcium Carbonate | 第46-47页 |
| ·Improving Denitrification | 第47-49页 |
| ·Envisioned applications of biotreatment | 第49-50页 |
| ·Other advantages of Denitrification over Ureolysis | 第50-54页 |
| 6 Material and methods | 第54-66页 |
| ·Criteria for evaluation of MICP processes for ground improvement | 第54-55页 |
| ·Medium composition for denitrification experiments | 第55页 |
| ·Cementing Agent | 第55页 |
| ·Materials | 第55-57页 |
| ·Selection of Bacteria for MICP Microbially Induced Calcium Carbonate Precipitation | 第57-58页 |
| ·Methods | 第58-61页 |
| ·CaCO3 Precipitation Mediums | 第61-62页 |
| ·Procedure | 第62-66页 |
| 7 Results | 第66-75页 |
| ·Theoretical results of the produced calcium calcite | 第66页 |
| ·Results for batch experiments | 第66-67页 |
| ·Discussion and explanations for the mass losses | 第67-68页 |
| ·General discussion | 第68-74页 |
| ·Limitations of this method | 第74-75页 |
| 8 Conclusions and suggestions | 第75-79页 |
| ·Conclusion | 第75-77页 |
| ·Innovative points of research | 第77页 |
| ·Suggestions and future research | 第77-79页 |
| Acknowledgement | 第79-80页 |
| References | 第80-84页 |
