污泥堆肥过程氮素变化及N_2O排放

Changes of Nitrogen and N_2O Emission during Sludge Composting

随着城市的发展,城市生活污水污泥量也迅速增加,污泥合理处理已成为不可忽视的问题。目前,合理有效的污泥堆肥化处理已成为当下研究的热点。文章主要阐述了污泥处理现状、堆肥过程中的氮素变化过程与特征及N_2O排放的研究现状。

With the development of the city, the quantity of sewage sludge in the city is increasing rapidly,and rational dis-posal of sludge has become a problem that can not be ignored.At present, the rational and effective treatment of sludge composting has become the focus of current research.In this paper, the present situation of sludge treatment, the change process and charac-teristics of nitrogen during composting and the research status of N2O emission were introduced.