| Abstract | 第5-6页 |
| 摘要 | 第7-12页 |
| Chapter 1 Heavy metal pollution and disposal methods | 第12-24页 |
| 1.1 Heavy metal pollution | 第12-13页 |
| 1.2 Conventional methods for heavy metal removal from industrial effluents | 第13-15页 |
| 1.3 Biosorption | 第15-17页 |
| 1.3.1 Advantages | 第15-16页 |
| 1.3.2 Disadvantages | 第16-17页 |
| 1.4 Development of biosorbent | 第17-19页 |
| 1.5 Cell surface sorption | 第19-24页 |
| Chapter 2 Studies of metal disposal mechanism using non-living biomaterials | 第24-33页 |
| 2.1 Chemical modification of functional group on the biomass | 第24-25页 |
| 2.2 Biosorption equilibrium isotherm models | 第25-28页 |
| 2.3 Mechanisms of the removal of hexavalent chromium by biomaterials | 第28-33页 |
| Chapter 3 Characterization and mechanism of Cr(VI) removal from aqueous solutions by rice straw | 第33-56页 |
| 3.1 Introduction | 第33-37页 |
| 3.2 Materials and Methods | 第37-40页 |
| 3.2.1 Samples and reagents | 第37页 |
| 3.2.2 Batch experiments and isotherm studies | 第37-39页 |
| 3.2.3 Desorption of chromium loaded on the biomass | 第39页 |
| 3.2.4 Analysis | 第39-40页 |
| 3.3 Results and discussion | 第40-56页 |
| 3.3.1 Effect of pH | 第40-41页 |
| 3.3.2 Effect of initial Cr(VI) concentration | 第41-42页 |
| 3.3.3 Effect of temperature | 第42-43页 |
| 3.3.4 Effect of straw particle sizes | 第43-44页 |
| 3.3.5 Cr(VI) removal under standard conditions | 第44-46页 |
| 3.3.6 Effect of N03- on Cr(VI) removal | 第46-47页 |
| 3.3.7 Effect of 5042- on Cr(VI) removal | 第47-48页 |
| 3.3.8 Effect of modifications on carboxyl groups | 第48-50页 |
| 3.3.9 Isotherm studies | 第50-52页 |
| 3.3.10 Desorption of chromium loaded on the biomass | 第52-53页 |
| 3.3.11 The possible mechanism of removal of Cr(VI) by rice straw | 第53-56页 |
| Conclusion | 第56-58页 |
| Reference | 第58-74页 |
| Acknowledgements | 第74-75页 |
| Appendix Articles published during the study for Master’s Degree | 第75页 |
