Treatment status of kitchen waste and its research progress of pyrolysis technology

Abstract

Kitchen waste is enormous in its production, and has the characteristics of high water content and complex components. If it is not properly disposed, it will cause serious environmental pollution. This paper introduced the necessity and technological process of kitchen waste pretreatment technology, and summarized the main treatment technologies of kitchen waste, including landfilling, incineration, aerobic composting, anaerobic fermentation and pyrolysis, then the advantages, existing problems and application status of these treatment technologies were discussed. Meanwhile, the pyrolysis process has some advantages, such as not harmful substances produce, the volume and weight of the kitchen waste is highly reduced, and the three-phase products of pyrolysis can be reused, which has the technical advantages of harmlessness, reduction and resource utilization, and can meet the principles of kitchen waste treatment in China. In addition, the development status of kitchen waste pyrolysis technology was also introduced and prospected from the three aspects of pyrolysis characteristics, pyrolysis method and pyrolysis product utilization, in order to provide reference for the development of harmless treatment technology of food waste in China.