This study used a sequencing batch reactor to investigate the nitrogen removal performance of marine anammox bacteria (MAB) from nitrogen-rich saline wastewater with addition of a transition element, vanadium (V(V)). The findings showed that the performance of nitrogen removal by MAB was enhanced by dosing proper amount of V (V) (i.e. 0.25–20 mg/L), but the effectiveness deteriorated at higher doses (>20 mg/L). Vanadium (V) level at 1 mg/L was found to be an optimal dose for complete removal of ammonia (NH₄⁺-N) within only 160 min. Substrate conversion rates were improved and stayed at high for longer periods with lower vanadium doses (0.25–10 mg/L), which indicates that the MAB-mediated anammox reaction rate was accelerated by adding V(V). Moreover, V(V) was more preferential than partial nitrite (NO₂⁻) to be used as the electron acceptor by MAB, thus the new marine anammox process is termed as Vammox. Kinetic analysis using remodified Logistic model, modified Boltzman and Gompertz models on the nitrogen removal processes in typical operational conditions with V(V) addition revealed that none of the three models was appropriate at higher V(V) doses (>20 mg/L). Nevertheless, the remodified Logistic model was most suitable at lower V(V) doses (≤20 mg/L).

这项研究使用顺序批处理反应器来研究从富含氮的盐水中添加过渡元素钒（V（V））对海洋厌氧细菌（MAB）的脱氮性能。研究结果表明，通过适量添加V（V）（即0.25–20 mg / L）可以提高MAB的脱氮性能，但在更高剂量（> 20 mg / L）下效果会变差。发现以1 mg / L的钒（V）水平是完全去除氨气（NH ₄ ⁺-N）仅在160分钟内。底物转化率提高，并以较低的钒剂量（0.25-10 mg / L）长时间保持较高的转化率，这表明通过添加V（V）可以加速MAB介导的厌氧氨氧化反应速率。此外，V（V）比偏亚硝酸盐更优惠（NO ₂ ^- ）被用作由MAB电子受体，因此，新的海洋厌氧氨氧化过程称为Vammox。使用改良的Logistic模型，改良的Boltzman和Gompertz模型在添加V（V）的典型操作条件下进行脱氮过程的动力学分析表明，三个模型均不适用于更高的V（V）剂量（> 20 mg / L） 。但是，重新修改的Logistic模型最适合较低的V（V）剂量（≤20mg / L）。