亚硝化过程影响因素分析和讨论

Analysis and Discussion on Affecting Factors of Shortened Nitrification Process

近年来出现的一批生物脱氮新技术,如SHARON、CANON、SHARON ANAMMOX、OLAND等工艺,很适合于C/N比较低甚至不含有机物的含氨氮废水的处理。如何将硝化过程控制在亚硝化阶段,是保证这些新技术成功的关键。对影响NO2-积累的因素包括温度、pH值、溶解氧、泥龄和抑制剂等进行了分析,从实际应用的角度说明多种控制因素的不足之处,探讨了实现亚硝化过程的理想途径。

Technology of bio - removing nitrogen has been greatly improved in recent years. These new processes, like SHARON, CANON, SHARON - ANAMMOX, OLAND, etc. arc adept to be used for treating low C/N or even high ammonia concentration wastewater without organic matter, and the key thing is how to make shortened nitrification process come true. Affecting factors of shortened nitrification are analyzed, including temperature, pH, dissolved oxygen, sludge age and inhibitor, etc. The disadvantages of these affecting factors are pointed out through practical applications and the ideal method is discussed.