| Curriculum Vitae | 第1-9页 |
| 摘要 | 第9-13页 |
| ABSTRACT | 第13-30页 |
| Chapter 1:Introduction | 第30-39页 |
| §1.1 Overview | 第30-34页 |
| ·Introduction to zeolite | 第30-32页 |
| ·Clinoptilolite | 第32-34页 |
| §1.2 Motivation of the Study | 第34-35页 |
| §1.3 Objectives of the Study | 第35-37页 |
| §1.4 Organization of the Dissertation | 第37-39页 |
| Chapter 2:Literatures review and Theory | 第39-55页 |
| §2.1 Introduction | 第39-41页 |
| ·Zeolite in the world | 第39-40页 |
| ·Zeolite in Yemen | 第40-41页 |
| §2.2 Techniques of zeolite characterization | 第41-42页 |
| §2.3 Application of zeolite | 第42-46页 |
| ·Natural zeolites as effective adsorbents in wastewater treatment | 第44-45页 |
| ·The technological application of natural zeolites in water treatment | 第45页 |
| ·Adsorption and ion exchange of natural zeolite | 第45-46页 |
| §2.4 Modification of natural zeolite | 第46-47页 |
| ·Modification with solution of inorganic salts | 第47页 |
| §2.5 Adsorption Theory | 第47-53页 |
| ·Adsorption Isotherm Models | 第47-49页 |
| ·Adsorption Kinetic Models | 第49-52页 |
| ·Thermodynamic data analysis | 第52-53页 |
| §2.6 Conclusions from previous works | 第53-55页 |
| Chapter 3:Mineral Characterization of Yemeni natural zeolite (Al-Ahyuq area) | 第55-67页 |
| §3.1 Introduction | 第55-56页 |
| ·Location of the zeolite-rich tuff | 第56页 |
| ·Geology and mineralogy | 第56页 |
| §3.2 Material and analytical methods | 第56-58页 |
| §3.3 Results and evaluation | 第58-66页 |
| ·XRD analysis | 第58-59页 |
| ·XRF analysis | 第59页 |
| ·SEM and EDS characterization | 第59-66页 |
| §3.4 Conclusion | 第66-67页 |
| Chapter 4:Investigation on natural and salt activated Yemeni and Chinese zeolites for ammonium ions removal from aqueous solutions* | 第67-114页 |
| §4.1. Introduction | 第67-70页 |
| §4.2 The investigation into the ammonium removal performance of Yemeni natural zeolite: Activation, ion exchange mechanism and thermodynamics | 第70-94页 |
| ·Material and Methods | 第70-75页 |
| ·Results and discussion | 第75-94页 |
| §4.3 An investigation into the adsorption removal of ammonium by salt activated Chinese (Huludao) natural Zeolite:Kinetics, isotherms, and thermodynamics | 第94-112页 |
| ·Material and Methods | 第94-95页 |
| ·Results and discussion | 第95-112页 |
| §4.4 Conclusion | 第112-114页 |
| Chapter 5:Comparative studies between Yemeni (Al-Ahyuq) and Chinese (Huludao) natural zeolites for ammonium ion exchange | 第114-122页 |
| §5.1 Introduction | 第114页 |
| §5.2 Activation of the sodium-natural zeolite (ActZ) | 第114-115页 |
| §5.3 Bulk (XRD, XRF) | 第115-117页 |
| §5.4 Effect of temperature on NH_4~+ ion exchange into the zeolites | 第117-118页 |
| §5.5 Ion exchange and selectivity | 第118-120页 |
| §5.6 Conclusion | 第120-122页 |
| Chapter 6:Enhancement of phosphate removal from water by TiO_2/Yemeni naturalZeolite:Preparation,characterization and thermodynamic* | 第122-152页 |
| §6.1 Introduction | 第122-125页 |
| §6.2 Materials and Methods | 第125-129页 |
| ·Materials and Chemicals | 第125-126页 |
| ·Preparation of TiO_2/zeolite composite | 第126-127页 |
| ·Analysis and Characterization methods | 第127-128页 |
| ·Phosphate removal experiments | 第128-129页 |
| §6.3 Results and discussion | 第129-150页 |
| ·Effect of TiO_2/Zeolite composite on adsorption | 第129-130页 |
| ·Adsorbent characteristics and its mechanism | 第130-136页 |
| ·Phosphate adsorption | 第136-149页 |
| ·Cost estimation of TZ | 第149-150页 |
| §6.4 Conclusion | 第150-152页 |
| Chapter 7:Simultaneous removal of NH_4~+ and PO_4~(3-) from simulated reclaimed waters by modified Yemeni zeolite* | 第152-176页 |
| §7.1 Introduction | 第152-154页 |
| §7.2 Materials and methods | 第154-158页 |
| ·Materials and chemicals | 第154页 |
| ·Preparation of samples and Al/zeolite modified | 第154-156页 |
| ·Analysis and Characterization methods | 第156-157页 |
| ·Water sample | 第157页 |
| ·Ammonium and phosphate removal experiments | 第157-158页 |
| §7.3. Results and discussion | 第158-174页 |
| ·Effect of Al/Zeolite modified on NH_4~+ and PO_4~(3-) removal | 第158-160页 |
| ·Adsorbent characteristics and its mechanism | 第160-165页 |
| ·Adsorption kinetics | 第165-168页 |
| ·Adsorption isotherms | 第168-170页 |
| ·Thermodynamic study | 第170-174页 |
| §7.4 Conclusion | 第174-176页 |
| Chapter 8:Summary of the conclusions and suggestions for future works | 第176-181页 |
| §8.1 Conclusions | 第176-180页 |
| ·General conclusions | 第176-177页 |
| ·Specific conclusions | 第177-180页 |
| §8.2 suggestions for future works | 第180-181页 |
| Acknowledgements | 第181-183页 |
| References | 第183-199页 |
