| THWSIS RELEASE CERTIFICATE | 第1-10页 |
| CERTIFICATION | 第10-12页 |
| Acknowledgments | 第12-14页 |
| Table of contents | 第14-17页 |
| List of Tables | 第17-19页 |
| List of Figures | 第19-20页 |
| Abstract in English | 第20-24页 |
| Abstract in Chinese | 第24-27页 |
| Chapter 1 General Introduction | 第27-33页 |
| Chapter 2 Literature review | 第33-50页 |
| ·Polycyclic aromatic hydrocarbons (PAHs) | 第33-34页 |
| ·Occurrence in the environment | 第33页 |
| ·PAH fate and risks to ecosystems | 第33-34页 |
| ·PAH remediation methods | 第34-40页 |
| ·Physical and chemical methods | 第34-35页 |
| ·Bioremediation technologies | 第35-40页 |
| ·Land farming | 第36-37页 |
| ·Composting | 第37-38页 |
| ·Bioreactors | 第38页 |
| ·Phytoremediation | 第38-40页 |
| ·Advantages of phytoremediation | 第39页 |
| ·Different Types of Phytoremediation | 第39-40页 |
| ·Factors affecting the phytoremediation of Organic pollutants | 第40-42页 |
| ·Soil properties | 第40页 |
| ·Plant types | 第40-41页 |
| ·Physiochemical properties of pollutants | 第41页 |
| ·Soil amendments | 第41-42页 |
| ·Mechanisms of Phytoremediation of organic pollutants | 第42-44页 |
| ·Phytoremediation of PAHs | 第44页 |
| ·Strategies to enhance the PAH phytoremediation process | 第44-50页 |
| ·Rhizoremediation | 第45-46页 |
| ·Bioaugmentation | 第46-47页 |
| ·Biostimulation | 第47页 |
| ·Surfactant addition | 第47-48页 |
| ·Multiple process integration | 第48-50页 |
| Chapter 3 Degradation of phenanthrene and pyrene in spiked soils by single and combined plants cultivation | 第50-63页 |
| ·Background | 第50-51页 |
| ·Materials and methods | 第51-55页 |
| ·Chemicals | 第51-52页 |
| ·Soil | 第52页 |
| ·Experimental design | 第52-53页 |
| ·Analytical methods | 第53-55页 |
| ·Plant Biomass | 第53页 |
| ·Dehydrogenase activity | 第53-54页 |
| ·Water-soluble phenols | 第54页 |
| ·PAH analysis | 第54-55页 |
| ·Statistical analysis | 第55页 |
| ·Results and discussion | 第55-62页 |
| ·Plant biomass | 第55-56页 |
| ·Water-soluble phenolic compounds (WSP compounds) | 第56-58页 |
| ·The response of dehydrogenase activity | 第58-59页 |
| ·Dissipation of phenanthrene and pyrene in soil | 第59-62页 |
| ·Conclusions | 第62-63页 |
| Chapter 4 Enhancement of Phenanthrene and Pyrene Degradation in Rhizosphere of Tall Fescue (Festuca arundinacea) | 第63-84页 |
| ·Background | 第63-65页 |
| ·Materials and methods | 第65-70页 |
| ·Chemicals | 第65页 |
| ·Soil | 第65页 |
| ·Experimental design | 第65-66页 |
| ·Sampling | 第66-67页 |
| ·Analytical methods | 第67-69页 |
| ·Plant Biomass | 第67页 |
| ·Microbial numbers | 第67页 |
| ·Dehydrogenase activity | 第67页 |
| ·Water-soluble phenols | 第67-68页 |
| ·DNA extraction and purification | 第68页 |
| ·PCR-DGGE microbial community analysis | 第68页 |
| ·Analysis of DGGE patterns | 第68-69页 |
| ·PAH analysis | 第69页 |
| ·Statistical analysis | 第69-70页 |
| ·Results and discussion | 第70-83页 |
| ·The biomass of tall fescue | 第70-71页 |
| ·Microbial number | 第71-73页 |
| ·Water-soluble phenolic compounds (WSP compounds) | 第73-75页 |
| ·The response of dehydrogenase activity | 第75-76页 |
| ·Bacterial Diversity | 第76-80页 |
| ·The residual concentrations and the removal rate of PAHs | 第80-83页 |
| ·Conclusions | 第83-84页 |
| Chapter 5 Uptake, accumulation and translocation of phenanthrene and pyrene by plants | 第84-96页 |
| ·Background | 第84-85页 |
| ·Materials and methods | 第85-88页 |
| ·Chemicals | 第85页 |
| ·Experimental design | 第85-87页 |
| ·PAH analysis | 第87-88页 |
| ·Statistical analysis | 第88页 |
| ·Results and Discussions | 第88-95页 |
| ·Root uptake and accumulation of phenanthrene and pyrene | 第88-90页 |
| ·Shoot uptake and accumulation of phenanthrene and pyrene | 第90-92页 |
| ·Plant translocation of phenanthrene and pyrene | 第92-93页 |
| ·Contribution of plant uptake and accumulation to the enhanced dissipation by plants | 第93-95页 |
| ·Conclusions | 第95-96页 |
| Chapter 6 Effect of surfactants on pyrene degradation in the rhizosphere of tall fescue(Fesctuca arundinacea) | 第96-109页 |
| ·Background | 第96-97页 |
| ·Materials and methods | 第97-100页 |
| ·Chemicals | 第97页 |
| ·Preparation of pyrene contaminated soil | 第97-98页 |
| ·Experimental design | 第98-99页 |
| ·Analytical methods | 第99-100页 |
| ·Plant Biomass | 第99页 |
| ·Dehydrogenase activity | 第99页 |
| ·PAH analysis | 第99-100页 |
| ·Statistical analysis | 第100页 |
| ·Results and discussion | 第100-107页 |
| ·Biomass yields affected by different treatments | 第100-102页 |
| ·Changes in Dehydrogenase activity in soil | 第102-104页 |
| ·Removal of PAHs from soil | 第104-107页 |
| ·Conclusions | 第107-109页 |
| Chapter 7 Conclusions and Prospects | 第109-113页 |
| ·Conclusions | 第109-111页 |
| ·Prospects | 第111-113页 |
| References | 第113-140页 |
| Curriculum Vitae | 第140-141页 |
