废水生物脱氮技术简述

Brief Introduction to Biological Denitrification Process of Wastewater

在实际运用的废水生物脱氮工艺中,最具有代表性的A/O法、A2/O法等工艺,这些工艺在废水除磷脱氮方面起到了一定的作用,但仍然存在着许多问题。本文从脱氮的影响因素、原理出发,论述了各种因素对处理效果的影响分析,经分析表明实现亚硝酸型生物脱氮的途径主要为:控制废水温度、控制溶解氧含量、控制废水酸碱度、控制NH3浓度与氮负荷、控制泥龄等。最后,文章推荐并论述工艺,工艺两种工艺,从以上涉及有效解决上述问题。

A/O and A^2/O methods, the typical techniques for biological removal of phosphorus and nitrogen in wastewater, have played a role in actual applications. However, there are still problems. This paper discusses the principle of nitrogen removal and analyzes the factors affecting the results, which include controls of wastewater temperature, dissolved oxygen content, acidity and alkalinity, NH3 concentration, nitrogen load, etc,. It also presents effective measures for solution.