Chapter 1 Introduction 1.1 Solid waste pollution 1.2 Solid waste treatment 1.3 Stabilization/solidification for hazardous wastes 1.4 Geopolymer 1.5 Immobilization of Se oxyanions 1.6 Research basis for the study 1.7 Objectives and outline of the study References Chapter 2 Methodologies 2.1 Characterizations 2.2 Leaching methods References Chapter 3 Immobilization mechanism of Se oxyanions in geopolymer: effects of alkaline activators and calcined hydrotalcite additive 3.1 Introduction 3.2 Experiment 3.3 Results and discussion 3.4 Conclusions References Chapter 4 Influence of silicate on the structural memory effect of layered double hydroxides for the immobilization of selenium 4.1 Introduction 4.2 Experiment 4.3 Results and discussion 4.4 Conclusions References Chapter 5 A novel composite of layered double hydroxide/geopolymer for co-immobilization of Cs+ and SeO42- from aqueous solution 5.1 Introduction 5.2 Experiment 5.3 Results and discussion 5.4 Conclusions References Chapter 6 Mechanism of selenium (Ⅵ) immobilization using alkaline-earth metal oxides and ferrous salt 6.1 Introduction 6.2 Experiment 6.3 Results and discussion 6.4 Conclusions References Chapter 7 Conclusions
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