Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7483692 | Journal of Environmental Management | 2014 | 7 Pages |
Abstract
Oxygen injection is a commonly used mitigation strategy for sulfide control in sewers. Methane, a potent greenhouse gas, is also produced in sewers. Oxygen injection may reduce methane generation/emission, but could potentially lead to N2O production due to the development of a nitrifying microbial community. The impact of oxygen dosing for sulfide control in sewers on CH4 and N2O production was assessed in this study in laboratory sewer reactors. Results showed that oxygen injection is able to reduce CH4 formation in sewers, although full control of CH4 was not achieved, likely due to partial oxygen penetration into sewer biofilm. The experimental results also revealed a nitrogen loss of around 5Â mN/L. However, no significant N2O accumulation was detected.
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Authors
Ramon Ganigué, Zhiguo Yuan,