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Partial denitrification coupled with immobilization of anammox in a continuous upflow reactor

机译：在连续上流反应器中部分反硝化与厌氧氨化反应固定化

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Based on the stable operation of a continuous upflow reactor, immobilized anammox coupling with partial denitrification (DEAMOX), was successfully achieved after 94 days operation with a 63.5% accumulation rate of NO _(2) ~(?) –N and a 98.4% removal rate of NO _(3) ~(?) –N. Moreover, the findings show that the optimum range of COD/NO _(3) ~(?) –N ratio for the coupling reaction was 2.3–2.7. The nitrogen removal performance of the coupling reactor decreased in response to the increase of pH value to 8.0 or 8.5, which was inconsistent with previously published results. Complete denitrification was successfully coupled with DEAMOX by adding polycaprolactone (PCL) as solid carbon source. As a result, the NO _(3) ~(?) –N produced via anaerobic ammonium oxidation could be completely removed; the removal rate of total nitrogen increased from 80.3% to 88.5%. In addition, a large number of denitrifying biofilms were attached to the surface of PCL particles.
机译：在连续流式反应器稳定运行的基础上，运行94天后，成功实现了固定的厌氧氨与部分反硝化的耦合（DEAMOX），NO_（2）〜（？）–N的累积率为63.5％，98.4％ NO _（3）〜（？）–N的去除率。此外，研究结果表明，偶联反应的最佳COD / NO _（3）〜（？）–N比范围为2.3–2.7。 pH值增加到8.0或8.5时，偶合反应器的脱氮性能下降，这与以前发表的结果不一致。通过添加聚己内酯（PCL）作为固体碳源，完全脱硝成功地与DEAMOX结合使用。结果，通过厌氧铵氧化产生的NO _（3）〜（？）–N可以被完全去除。总氮去除率从80.3％提高到88.5％。另外，大量的反硝化生物膜附着在PCL颗粒的表面。

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