全书共五章，首先阐述了废弃塑料的危害、传统处理方法的弊端、超临界水处理技术的原理、超临界水中废弃塑料资源化利用技术的研究进展。其次介绍了材料种类及表征、实验方法及流程、产物的分析方法。随后从超临界水气化、液化、固定二氧化碳、污染物共气化、制备疏水材料等多个层面出发，对多种热塑性和热固性塑料的资源化利用技术进行剖析。最后对国内外的塑料处理政策进行总结，说明了该技术未来的研究方向和挑战。

List of figures
List of tables
Foreword
Acknowledgement
Abbreviations
1.Background introduction
1.1 Current situation and hazards of plastic waste
1.1.1 Pollution to the natural environment
1.1.2 A threat to human health
1.1.3 Cause a waste of resources
1.2 Traditional treatment methods
1.2.1 Landfill treatment
1.2.2 Mechanical recovery
1.2.3 Incineration method
1.2.4 Thermal decomposition
1.3 Supercritical water technology
1.3.1 Supercritical water characteristics
1.3.2 Resource utilization of waste plastics in supercritical water
References
2.Analysis of types of plastics
2.1 Introduction to raw materials
2.1.1 Polycarbonate plastic
2.1.2 Polypropylene plastic
2.1.3 Acrylonitrile butadiene styrene plastic
2.1.4 Polyethylene terephthalate plastic
2.1.5 High-impaa polystyrene plastic
2.1.6 Polystyrene plastic
2.1.7 Polyethylene plastic
2.1.8 Urea—formaldehyde plastic
2.1.9 Circuit board
2.1.10 Lignite
2.1.11 Soda lignin
2.1.12 Artificial seawater
2.1.13 Formic add and hydrochloric acid solvent
2.2 Material characterization
2.2.1 Elemental and proximate analysis
2.2.2 Thermogravimetric analysis
2.3 Experimental bench
2.3.1 Quartz tube reactor
2.3.2 Batch kettle reactor
2.4 Product analysis
2.4.1 Gas phase products
2.4.2 Liquid phase products
2.4.3 Solid phase products
References
3.Resource utilization of thermoplastics in supercritical water
3.1 Gasification
3.1.1 Experimental investigation on gasification characteristics of polycarbonate microplastics in supercritical water
3.1.2 Experimental study on gasification performance of polypropylene plastics in supercritical water
3.1.3 Experimental investigation on in-situ hydrogenation induced gasification characteristics of acrylonitrile butadiene styrene microplastics in supercritical water
3.1.4 Experimental investigation on gasification characteristics of polyethylene terephthalate microplastics in supercritical water
3.1.5 Experimental investigation on gasification characteristics of high impact polystyrene plastics in supercritical water
3.2 Liquefaction
3.2.1 Hydrothermal liquefaction of polycarbonate plastics in sub-/supercritical water and an exploration of reaction pathways
3.3 Liquefaction reaction pathways exploration
3.3.1 Liquefaction kinetics of polycarbonate
3.4 Carbon dioxide fixation
3.4.1 In the supercritical water/C02 environment
3.4.2 In C02 environment
3.5 Coordinated treatment of pollutants
3.5.1 Hydrogen/methane production from supercritical water gasification of lignite coal with plastic waste blends
3.5.2 Cogasification of plastic wastes and soda lignin in supercritical water
3.6 Preparation of hydrophobic materials
3.6.1 Hydrophobic behavior
3.6.2 Microstructure
3.6.3 Functional groups
References
4.Resource utilization of thermosetting plastics in supercritical water
4.1 Hydrogen-rich syngas production by gasification of urea—formaldehyde plastics in supercritical water
4.1.1 Effect of reaction temperature
4.1.2 Effect of reaction time
4.1.3 Effect of feedstock mass fraction
4.1.4 Effect of reaction pressure
4.1.5 Compared with the polystyrene plastics
4.1.6 Reaction analysis
4.1.7 Kinetic study
4.1.8 Conclusions
4.2 Resource utilization of circuit boards
4.2.1 Effect of reaction temperature
4.2.2 Effect of the reaction time
4.2.3 Effect of feedstock concentration
4.2.4 Effect of additive
4.2.5 Conclusion
References
5.Development prospects for resource utilization of waste plastics
5.1 Necessity of recycling waste plastics
5.1.1 Biodiversity conservation
5.1.2 Maintaining soil fertility
5.1.3 Saving resources
5.2 Comp