| 污水处理厂厌氧氨氧化工艺小试 |
| 摘要点击 2507 全文点击 738 投稿时间：2017-06-10 修订日期：2017-07-21 |
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| 中文关键词 生活污水 低温 厌氧氨氧化 滤柱 生物膜 |
| 英文关键词 sewage low temperature ANAMMOX filter biomembrane |
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| 中文摘要 |
| 在市政污水处理厂进行厌氧氨氧化工艺小试实验.试验以A/O除磷和亚硝化工艺处理后的生活污水为基质，室外启动并运行上向流厌氧氨氧化生物滤柱.第109 d时，连续15 d氨氮和亚硝氮去除率大于90%，总氮去除率大于70%，厌氧氨氧化生物滤柱启动成功.第245~333 d，运行进入冬季，滤料生物量（以VSS计，下同）为12.24 mg·g-1，平均总氮去除率为54.3%.第461 d对滤柱进行反冲洗，滤料生物量降低至8.01 mg·g-1.第605~693 d，运行再次进入冬季，滤料生物量为10.41 mg·g-1，平均总氮去除率为69.7%.生物量小于去年同期水平，但总氮去除负荷提高了23%.在整个运行过程中，高温（30℃）污泥厌氧氨氧化速率基本保持不变，低温（15℃）厌氧氨氧化速率（以MLSS计）从1.5 kg·（kg·d）-1增长到3.6 kg·（kg·d）-1.结果表明，长期低温驯化有利于提高厌氧氨氧化工艺低温处理效果，实现冬季厌氧氨氧化工艺高效运行. |
| 英文摘要 |
| A lab-scale, completely anaerobic ammonium oxidation (ANAMMOX) process was operated in a municipal wastewater treatment plant (WWTP). Sewage effluent treated by an A/O process and nitrification process was input as the substance to start up the up-flow ANAMMOX filter reactor. After the 109th day, the ammonia removal rate and nitrite removal rate were greater than 90% for 15 successive days and the nitrogen removal rate was higher than 70%. The ANAMMOX filter reactor successfully started up. From days 245 to 333, the reactor was running during the winter. The weight of biomass reached 12.24 mg·g-1, and the average nitrogen removal rate was 54.3%. Backwash was adopted at day 461, and the weight of biomass decreased to 8.01 mg·g-1. From days 605 to 693, the reactor was running in the winter again. The weight of biomass was 10.41 mg·g-1, and the average nitrogen removal rate was sustained at 69.7%. Compared with the previous winter, the weight of biomass was lighter but the total nitrogen removal loading was 23% greater. For the entire operation, the ANAMMOX rate at high temperature was stable but that at low temperature increased from 1.5 kg·(kg·d)-1 to 3.6 kg·(kg·d)-1. The results show:Long-term domestication at low temperature was in favor of improving treatment efficiency of ANAMMOX process in cold environment and realized ANAMMOX process operated efficiently in winter. |
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