中文摘要：

采用SBR厌氧氨氧化反应器,研究了不同TOC与NH_4~＋-N比值对厌氧氨氧化反应器的脱氮效能的长短期影响.结果表明,在有机物短期影响时,反应器所能承受的最大TOC/NH_4~＋-N为1.4,总氮去除速率可达0.26 kg·（m~3·d）~（-1）.长期影响下,在TOC/NH_4~＋-N小于0.4时,反应器可获得最高脱氮效能,总氮去除率为0.34 kg·（m~3·d）~（-1）,TOC/NH_4~＋-N大于0.4后,反应器脱氮效能持续降低,并且短期内厌氧氨氧化菌难以迅速恢复活性.利用q PCR（定量PCR）技术对长期影响前后反应器内菌种群落变化做定量分析,结果表明随着有机物的增加,反应器中的ANAMMOX菌数量从2.9×10~（11）copies·mL~（-1）减少至3.15×10~（10）copies·mL~（-1）,在TOC/NH_4~＋-N大于1.6的环境中,NH_4~＋-N未能由厌氧氨氧化菌去除,厌氧氨氧化菌不能表现出生物活性.此时测得反硝化菌数量为3.0×10~9copies·mL~（-1）,反应器中的NO_2~--N绝大部分由反硝化去除,虽然反硝化菌数量远少于ANAMMOX菌,但能表现出远超ANAMMOX菌的活性.

英文摘要：

The effect of the TOC to NH_4~＋-N ratio on nitrogen removal rate in an ANAMMOX sequencing batch reactor was studied for the short term and long term. Short-term results showed the maximum TOC/NH_4~＋-N that ANAMMOX could afford was 1. 4. At the same time,the rate of nitrogen removal was 0. 26 kg·（ m~3·d）~（-1）. The maximum nitrogen removal rate of 0. 34 kg·（ m~3·d）~（-1）was obtained when TOC/NH_4~＋-N was less than 0. 4 in the long-term experiment. Whereas the nitrogen removal rate of the reactor decreased continuously when TOC/NH_4~＋-N exceeded 0. 4,and it was difficult to recover the activity of the ANAMMOX bacteria in the short term.q PCR results showed that the amount of ANAMMOX bacteria dropped from 2. 9 ×10~（11）copies·mL~（-1）to 3. 15 × 10~（10）copies·mL~（-1）with the increase of organics. When TOC/NH_4~＋-N exceeded 1. 6,NH_4~＋-N could hardly be removed by the ANAMMOX bacteria,which were severely inhibited. The number of denitrifying bacteria was 3. 0 ×10~9copies·mL~（-1）; meanwhile,most of the NO_2~--N in the reactor was removed via denitrification.