Migration and Transformation of Phosphorus in Polluted Water in Sediment-Water

水体污染是目前城市典型的环境问题之一，这严重影响城乡居民的生活质量。长期富营养化水体中的底泥极易产生磷元素的再次释放而造成二次污染的现象。在有效阻断、控制外源污染释放源头的同时，应关注内源污染物质的二次释放问题。分析富营养化污染水体–底泥中磷元素迁移转化的内在机理及形成的规律，有利于控制磷元素的二次污染，为水体的生态修复技术在污水治理工程中进行更广范围的应用推广，实现水体的可持续生态洁净。 Water pollution is currently one of the typical environmental problems in cities, which seriously af-fects the quality of life of urban and rural residents. The sediment in the long-term eutrophic water body is very easy to produce the re-release of the phosphorus element and cause the phenomenon of secondary pollution. While effectively blocking and controlling the source of exogenous pollution release, attention should be paid to the secondary release of endogenous pollutants. Eutrophication polluted water-the internal mechanism of the migration and transformation of phosphorus in sediments and the law of formation are analyzed. This is conducive to controlling the secondary pollution of phosphorus. The ecological restoration technology for water bodies is widely applied and promoted in sewage treatment projects.