管道沉积物氮及有机物污染特性研究进展

Research progress on pollution characteristics of nitrogen and organics in sewer sediment

对国内外利用管道作为生物反应器去除氮及有机物、沉积物-水界面氮及有机物迁移转化等研究进展进行了综述。管道生物反应器中氮及有机物去除研究方面,国内外学者通过观测微生物含量、实地测量排水管道内污染物浓度变化、改良排水管道以实现更好的污水处理效果等方法进行研究;降雨冲刷沉积物引发污染物释放主要发生在沉积物-水界面,沉积物-水界面氮及有机物的迁移转化研究集中在沉积物-水界面层的组成及特性、沉积物-水界面的冲刷与污染、沉积物-水界面污染物的转化与降解等三方面,其中沉积物-水界面层污染物的迁移转化模型是重要研究内容之一。

In this review, we present a domestic and foreign state-of-the-art on nitrogen and organic matter removal by using sewer as a bioreactor and the migration and transformation of nitrogen and organic matter in the sediment-water interlace. In terms of nitrogen and organic matter removal, domestic and toreign researchers mainly observe microbial content, measure the pollutant concentration changes in situ, and improve drainage pipeline to achieve better removal efficiency of pollutants in sewage. Sediment pollutant release, caused by rainfall erosion, mainly occurs in the sediment-water interlace layer. Research on the migration and transtonnation of nitrogen and organic matter in the sediment-water interface tocus on the composition and characteristics of sediment-water interlace of the most important research contents.