Tuesday, 11 July 2017 11:43

New publication - Effect of temperature on N2O emissions from a highly enriched nitrifying granular sludge performing partial nitritation of a low-strength wastewater

A new paper titled ‘Effect of temperature on N2O emissions from a highly enriched nitrifying granular sludge performing partial nitritation of a low-strength wastewater’ by C. Reino, M.C.M van Loosdrecht, J. Carrera and Julio Pérez has been published in Chemosphere (2017), 185, 336-343.

In the race to achieve a sustainable urban wastewater treatment plant, not only the energy requirements have to be considered but also the environmental impact of the facility. Thus, nitrous oxide (N2O) emissions are a key-factor to pay attention to, since they can dominate the total greenhouse gases emissions from biological wastewater treatment. In this study, N2O production factors were calculated during the operation of a granular sludge airlift reactor performing partial nitritation treating a low-strength synthetic influent, and furthermore, the effect of temperature on N2O production was assessed.In the case of partial nitritation systems at mainstream conditions, to the best of the authors’ knowledge, only few studies reported N2O gas emissions of a nitritation reactor treating a low-strength synthetic influent and moreover, the effect of temperature on N2O emissions was never deeply studied. Hence, the novelty of the findings presented in this paper will be of great interest for the researchers on the topic.

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