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首页> 外文会议>International conference on environmental technology and knowledge transfer >Performance of Anaerobic Ammonia Oxidation (Anammox): Effect of Organic Matter on Granular Sludge
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Performance of Anaerobic Ammonia Oxidation (Anammox): Effect of Organic Matter on Granular Sludge

机译：厌氧氨氧化的性能（厌氧毒素）：有机质对颗粒污泥的影响

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The presence of organic matter (OM) would affect the anammox process adversely. In practice, wastewaters containing ammonia are not free from OM. In this paper, the performance of anammox granular sludge in presence of OM was first evaluated under different COD to N ratios. Without OM, the granular reactor possessed an excellent ammonia and nitrite removal. Quantitative polymerase chain reaction (PCR) analysis indicated that anammox bacteria comprised 89.3-90.6% cells in the bacterial community coexisted with small amount of denitrifiers. Low OM concentration did not affect ammonia and nitrite removal significantly but improved the total nitrogen removal via denitrifiers. High OM could suppress anammox activity, resulting in a lower ammonia removal. Nitrite removal was not affected by the existence of OM in the presence of denitrifiers. PCR test revealed that there was a reduction in the number of anammox bacteria and denitrifiers quantity increased when 400 mg COD/L influent was applied. A COD threshold concentration for anammox inhibition, which was, defined when ammonia removal dropped to 80%, was 308 mg COD/L. Anammox granular sludge had higher tolerance to OM than flocculent sludge.
机译：有机物（OM）的存在会对厌氧过程产生不利影响。在实践中，含有氨的废水不含OM。在本文中，首先在不同的COD与N比下评估anammox粒状污泥的性能。没有OM，粒状反应器具有优异的氨和亚硝酸盐去除。定量聚合酶链反应（PCR）分析表明，厌氧菌细菌在细菌群落中的49.3-90.6％的细胞，其与少量脱氮剂共存。低Om浓度不会显着影响氨和亚硝酸盐去除，但通过脱氮剂改善了总氮去除。高OM可以抑制厌氧活性，导致氨的氨。亚硝酸盐去除不受脱氮剂存在的存在的影响。 PCR试验显示，当施加400mg COD / L流入物时，厌氧菌细菌的数量和脱氮剂的数量增加。厌氧抑制的COD阈值浓度，当氨除去至80％时定义为308mg COD / L.厌氧颗粒污泥的OM耐受性较高，而不是絮凝污泥。

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