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自养硝化作用中的氧-氮关系

Oxygen-nitrogen relationships in autotrophic nitrification.

作者信息

Wezernak C T, Gannon J J

出版信息

Appl Microbiol. 1967 Sep;15(5):1211-4. doi: 10.1128/am.15.5.1211-1215.1967.

Abstract

Oxygen utilization by the autotrophic nitrifiers Nitrosomonas and Nitrobacter was studied. Experimental evidence is presented which reflects the effect of carbon dioxide fixation on overall oxygen utilization in autotrophic nitrification. Measurement of dissolved oxygen and inorganic nitrogen changes indicates that oxygen-nitrogen ratios in inorganic nitrogen oxidation are equal to 3.22 parts (expressed in milligrams per liter) of oxygen per part of ammonia nitrogen oxidized to nitrite nitrogen and 1.11 parts of oxygen per part of nitrite nitrogen oxidized to nitrate nitrogen. These values rather than the stoichiometric ratios should be used in nitrogenous oxygen demand calculations.

摘要

对自养型硝化细菌亚硝化单胞菌属和硝化杆菌属的氧气利用情况进行了研究。文中给出的实验证据反映了二氧化碳固定对自养型硝化作用中整体氧气利用的影响。溶解氧和无机氮变化的测量结果表明,无机氮氧化过程中的氧氮比为:每氧化1份氨氮生成亚硝酸盐氮需消耗3.22份(以毫克/升表示)氧气,每氧化1份亚硝酸盐氮生成硝酸盐氮需消耗1.11份氧气。在计算含氮需氧量时应使用这些数值而非化学计量比。

相似文献

1
Oxygen-nitrogen relationships in autotrophic nitrification.自养硝化作用中的氧-氮关系
Appl Microbiol. 1967 Sep;15(5):1211-4. doi: 10.1128/am.15.5.1211-1215.1967.

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