Abstract：The start-up of ANAMMOX process using a sequencing batch reactor was investigated and the characteristics and control strategies during start-up were explored. Furthermore, process control strategies were also analyzed from two aspects of substrate control and environment control. ANAMMOX phenomenon was observed after 17days with the end of cell lysis phase. Thus, by the material balance, daily production of ANAMMOX bacteria was more than denitrifying bacteria. The granular red-brown ANAMMOX sludge was obtained after 100-day start-up. When the ANAMMOX reactor was successfully started-up, the analysis of the effects of substrates concentrations indicated that the ANAMMOX process was inhibited when the nitrite concentration was higher than 240mg/L. The analysis of the operation process indicated a good correlation between NH4+-N removal rate and the value of ΔpH·Q. Therefore, the pH was simple indicator of ANAMMOX performance. The oxidation-reduction potential (ORP) was as parameter for indicating the performance of the ANAMMOX reactor, and the results showed that a good correlation between ORP and pH. Simultaneously, ORP was used to describe the trend of the varied NH4+-N removal rate, and the delay time of nitrogen removal obtained from the ‘turning point’ of the ORP curve.
于德爽, 李伟刚, 李津. ASBR反应器厌氧氨氧化脱氮Ⅰ:工艺特性与控制策略[J]. 中国环境科学, 2013, 33(12): 2176-2183.
YU De-Shuang, LI Wei-Gang, LI Jin. Nitrogen removal in the Anammox sequencing batch reactorⅠ: Performance and control strategies. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(12): 2176-2183.
