Abstract:  To systematically address the impacts of spent deicing fluids on the ecological environment of airports and effec-tively respond to the core challenges posed by pollution from spent deicing fluids to green operational manage-ment at airports, this paper systematically analyzes the composition, application scale, and discharge characteris-tics of spent deicing fuids at airports both domestically and internationally. It elucidates the complex ecologicaland environmental impacts of spent deicing fluids on airports and surrounding water bodies, such as increasedorganic loading, decreased dissolved oxygen, elevated salinity, as well as soil salt accumulation and changes inphysicochemical properties, especially the environmental pollution caused by persistent organic pollutants intheir additives. Based on the above analysis, the paper proposes comprehensive management strategies tostrengthen effective collection, treatment, and recycling of spent airport deicing fluids; it also proposes developingefficient treatment technologies, further exploring economically feasible recycling routes, and providing scientificsupport for pollution prevention and control of spent deicing fluids and for sustainable development at airports

Key words: airport ecological environment, spent deicing fluids, fluid pollution, soil ecology, aquatic environment