浅谈污水脱氮技术

Analysis of Wastewater Denitrification Technology

针对水污染现状,本文简单介绍了引起水体污染和富营养化的氮素来源及其主要危害,并简单对物理化学脱氮法和生物脱氮法的反应原理和优缺点进行了对比介绍,其中生物脱氮法具有成本低、操作简单、处理效果好、不造成二次污染等特点而被广泛应用。在此基础上介绍了目前国内外使用较多的几种生物脱氮工艺,最后对污水脱氮的发展趋势做了简要说明。

According to the present situation of water pollution, this paper briefly introduced the source of nitrogen and its main hazards caused by water pollution and eutrophication, and briefly introduced the reaction principles of the physical and chemical denitrification method and biological denitrification process,the advantages and disadvantages of these methods were compared. The biological denitrification process was widely used because of the advantages of low cost, simple operation, good treatment effect, and no secondary pollution. On the basis of this, the paper introduced several kinds of present biological denitrification process at home and abroad, and gave a brief introduction of the development trend of wastewater denitrification.