间歇曝气短程硝化控制新途径的初步试验研究

Study on a New Way of Shortcut Nitrification with Intermittent Aeration.

采用SBR,以间歇曝气的方式控制短程硝化,分别研究了在限制曝气量和不限制曝气量条件下,亚硝酸盐的积累情况。试验表明,间歇曝气可以作为短程硝化的控制条件,在一定条件下,亚硝化率可达到90%以上。限制曝气量时,在低DO情况下,采用间歇曝气控制短程硝化更为有效、经济。

In use of a SBR reactor,we control the process of nitrification within nitrite by the way of intermittent aeration, study the accumulation of nitrite on conditions of limited oxygen and non-limited oxygen. The experiment indicates intermittent aeration is a way to control shortcut nitrification. In certain condition, the ratio of nitrite accumulating can reach 90%. When confining the quantity of aeration which lead to a condition of low DO, It＇s a efficient and economical way to control shortcut nitrification with intermittent aeration.