| 陶粒CANON反应器的接种启动与运行 |
| 摘要点击 3117 全文点击 1225 投稿时间：2013-07-24 修订日期：2013-09-03 |
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| 中文关键词 CANON工艺 陶粒 短程硝化 厌氧氨氧化 稳定性 |
| 英文关键词 CANON process haydite short-cut nitrification ANAMMOX stability |
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| 中文摘要 |
| 通过CANON接种污泥，以人工配制无机高氨氮废水为对象，研究以陶粒为填料的CANON反应器启动与运行情况，结果表明：1陶粒可以作为CANON反应器合适填料，温度通过水浴控制在30℃±1℃，HRT为9 h、pH控制在7.00~8.08之间，经过60 d成功启动了CANON反应器，TN的去除负荷达到0.79 kg·（m3·d）-1；2在温度30℃时，陶粒CANON反应器中临界DO范围在1.12~1.69 mg·L-1之间，CANON反应器中短程硝化和厌氧氨氧化性能可维持稳定，高于此范围时，会出现CANON反应器中短程硝化不稳定现象；3在温度25℃，控制DO在1.01~1.54 mg·L-1之间时，尽管NO3--N变化值与TN变化值的比值（δNO3--N/δTN）略微偏离理论值0.127，为0.150~0.204，但CANON反应器脱氮性能趋于稳定，TN去除率最高为75.56%，TN的去除负荷最高达到0.97 kg·（m3·d）-1，这意味着CANON工艺的适宜温度范围至少可以降低至25℃. |
| 英文摘要 |
| A CANON reactor with haydite as the carrier was started by incubating sludge from another CANON reactor and using synthetic inorganic ammonia rich wastewater as the raw water. Both start-up and operation were studied. The result showed that haydite can be a suitable carrier for CANON reactor. With this carrier, start-up of CANON reactor can be completed in 60 days with total nitrogen removal load up to 0.79 kg·(m3·d)-1, when the reactor was equipped with a water jacket to maintain the water temperature at 30℃±1℃, and pH at 7.00-8.08, hydraulic retention time of 9 hours. The critical range of dissolve oxygen for CANON reactor was 1.12-1.69 mg·L-1, and both characteristics of short-cut nitrification and ANAMMOX were stable. However, the CANON reactor can be instable if dissolve oxygen concentration increased above this range. Although the ratio of nitrate variation to total nitrogen variation(δNO3--N/δTN)was 0.150-0.204, which deviated a little from its theoretical value, 0.127. The performance of CANON reactor kept relatively stable. The total nitrogen removal efficiciency was up to 75.56% while total nitrogen removal load was 0.97 kg·(m3·d)-1, which means the temperature for CANON reactor can be decreased to 25℃ at least. |
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