| Abstract | 第4页 |
| 1. Introduction | 第7-13页 |
| 1.1 Research Background | 第7-8页 |
| 1.2 Literature review for H_2O_2/O_3 disinfection | 第8-9页 |
| 1.3 Hydrogen peroxide (H_2O_2) | 第9-11页 |
| 1.4 Oxidation by ozone (O_3) | 第11-12页 |
| 1.5 Research objectives | 第12-13页 |
| 2. Experimental materials and methods | 第13-19页 |
| 2.1 Experimental design | 第13-14页 |
| 2.2 Analytical methods and reagents | 第14-16页 |
| 2.2.1 Ozone calculation | 第14-15页 |
| 2.2.2 Preparation of experimental reagent | 第15页 |
| 2.2.3 Experimental steps | 第15-16页 |
| 2.3 Calculation of Dissolved Ozone Concentration | 第16-17页 |
| 2.3.1 Preparation procedure | 第16-17页 |
| 2.4 Preparation and analysis of E. coli | 第17页 |
| 2.5 Inactivation of E. coli by micro-bubble ozonation treatment | 第17-19页 |
| 3. Results and discussion | 第19-39页 |
| 3.1 Comparative study on microbubble and macrobubble ozonation | 第19-22页 |
| 3.1.1 Relationship between Contact time and log cell concentration | 第19-20页 |
| 3.1.2 Effect of dissolved ozone concentration on inactivation of E. coli | 第20页 |
| 3.1.3 Relationship between Log cell concentration and dissolved ozoneconcentration | 第20-21页 |
| 3.1.4 Efficacy of ozone exposure on log reduction | 第21-22页 |
| 3.2 Effect of microbubble on inactivation of E. coli | 第22-24页 |
| 3.2.1 Effect of ozone mass transfer on inactivation of E. coli | 第22-23页 |
| 3.2.2 Effect of dissolved ozone concentration on inactivation of E. coli | 第23-24页 |
| 3.3 Inactivation of E. coli at various ozone dose | 第24-27页 |
| 3.3.1 Effect of ozone concentration on the inactivation of E. coli | 第24页 |
| 3.3.2 Effect of dissolved ozone concentration on inactivation of E. coli during contacttime | 第24-25页 |
| 3.3.3 Effect of high ozone dose on removal efficiency of E. coli | 第25-26页 |
| 3.3.4 Effect of Ozone exposure on inactivation of E coli under micro-bubble | 第26-27页 |
| 3.4 Effect of suspended solids (kaolin) on inactivation of E. coli with Ozone | 第27-30页 |
| 3.4.1 Relationship between log cell concentration and contact time | 第27页 |
| 3.4.2 Relationship between dissolved ozone concentration and contact time | 第27-28页 |
| 3.4.3 Relationship between log reduction and CT | 第28-29页 |
| 3.4.4 Relationship between log cell concentration and dissolved ozone concentration | 第29-30页 |
| 3.5 Effect of acid red 3R on inactivation of E. coli | 第30-32页 |
| 3.5.1 Relationship between contact time and log cell concentration | 第30页 |
| 3.5.2 Relationship between contact time and dissolved ozone concentration | 第30-31页 |
| 3.5.3 Relationship between log reduction and CT | 第31-32页 |
| 3.5.4 Relationship between log cell concentration and dissolved ozone concentration | 第32页 |
| 3.6 Effect of ozone and free radicals on disinfection of E. coli | 第32-36页 |
| 3.6.1 Relationship between contact time and log cell concentration | 第32-33页 |
| 3.6.2 Determination of CT values for OH radical | 第33-34页 |
| 3.6.3 Influence of free radicals on dissolved ozone concentration | 第34-35页 |
| 3.6.4 Effect of dissolved ozone concentration on inactivation of E. coli withozonation microbubble | 第35-36页 |
| 3.7 Effect of ozone/hydrogen peroxide on inactivation of E. coli | 第36-39页 |
| 3.7.1 Effect of Hydrogen peroxide, Ozone and Peroxone on treatment efficiency | 第36页 |
| 3.7.2 Lethal ability assessment on E. coli with H_2O_2 | 第36-39页 |
| 4. Conclusion | 第39-41页 |
| 5. Reference | 第41-47页 |
| Acknowledgements | 第47页 |
