The synergistic effects of dissolved oxygen and pH on N2O production in biological domestic wastewater treatment under nitrifying conditions.
作者： Pengzhang Li , Shuying Wang , Yongzhen Peng , Yue Liu , Janzhong He
DOI: 10.1080/09593330.2014.1002862
关键词: Nitrification 、 Nitrous oxide 、 Wastewater 、 Nitrous acid 、 Chemistry 、 Ammonia 、 Environmental chemistry 、 PH reduction 、 Denitrification 、 Denitrifying bacteria
摘要: Nitrous oxide (N2O) is a potent greenhouse gas, which produced during nitrifying and denitrifying processes. Some factors mechanisms affecting N2O emission have been reported in previous literature, but wastewater biological nitrification accompanied by dynamic process of dissolved oxygen (DO) consumption pH reduction, it more meaningful to study the synergistic effects between DO on production. In this study, production were investigated with real domestic wastewater. The results showed that high levels could improve oxidation ratio while effectively reducing accumulation N2O. was prerequisite for nitrifier denitrification; when oxidized completely, there would be no an even higher concentration factor shown directly affect emission, although free ammonia nitrous acid changed had correlati...
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