A previous study demonstrated that denitrification synergized with Anammox could accelerate the anaerobic degradation of benzene. The inhibitory effects of benzene, toluene, phenol and benzoate in single and combination on Anammox activity were investigated by short-term batch tests. The results indicated that the inhibition of single compounds on Anammox could be well fitted with the extended non-competitive and Luong inhibition kinetic models. The inhibitions of the individual compound were in order as follows: benzene > toluene > phenol > benzoate. The joint inhibitions of bi-component mixtures of benzene with toluene, benzene with phenol and benzene with benzoate on Anammox activity were additive; the joint inhibition of a tri-component mixture (benzene, toluene and phenol) was partly additive; and the joint inhibition of a multicomponent mixture (benzene, toluene, phenol and benzoate) was synergistic. The effect of benzoate on the denitrification–Anammox synergy for benzene degradation was evaluated using a long-term test. Although the average rate of benzene degradation decreased by 13% with the addition of 10 mg L⁻¹ benzoate, the average rate of NO₃⁻ and NH₄⁺ increased by approximately 1- and 0.56-fold, respectively, suggesting that benzoate favors the stability of the denitrification–Anammox synergy. The carboxylation of benzene would be a more favorable pathway for the anaerobic degradation of benzene under denitrification synergized with Anammox.

中文翻译：

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苯，甲苯，苯酚和苯甲酸酯的单一或组合对Anammox活性的抑制作用：对反硝化-Anammox协同作用的影响。

先前的研究表明，与Anammox协同作用的反硝化作用可以加速苯的厌氧降解。通过短期分批试验研究了苯，甲苯，苯酚和苯甲酸酯的单一或组合对厌氧氨氧化活性的抑制作用。结果表明，单一化合物对Anammox的抑制作用可与扩展的非竞争性和Luong抑制动力学模型很好地拟合。各个化合物的抑制作用如下：苯>甲苯>苯酚>苯甲酸酯。苯与甲苯，苯与苯酚的苯和苯与苯甲酸酯的双组分混合物对厌氧氨氧化活性的联合抑制作用；三组分混合物（苯，甲苯和苯酚）的联合抑制作用是部分累加的；多组分混合物（苯，甲苯，苯酚和苯甲酸酯）的联合抑制作用是协同的。使用长期测试评估了苯甲酸酯对反硝化-Anammox协同降解苯的作用。尽管加入10 mg L的苯的平均降解率降低了13％^-1苯甲酸盐，NO的平均速率₃ ^-和NH ₄ ⁺增加约1-和0.56倍，分别，这表明苯甲酸利于脱氮-厌氧氨氧化的协同作用的稳定性。苯的羧化将是与厌氧氨化增氧作用下反硝化作用下苯厌氧降解的一条更有利的途径。