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Your search keyword '"Daelman, Matthijs R.J."' showing total 8 results
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8 results on '"Daelman, Matthijs R.J."'

4. Modelling of methane production and emissions

Author

Sharma, Keshab, Gutierrez, Oriol, Yuan, Zhiguo, Daelman, Matthijs R.J., van Loosdrecht, Mark C.M., Volcke, Eveline I.P., Ye, Liu, Porro, Jose, and Nopens, Ingmar

Subjects
Emission, Activated sludge, Oxidation, Sewer, Production, Methane, Model
Abstract

This chapter provides a review of the models available for estimating the production and emission of methane from wastewater collection and treatment systems. The details of a number of mechanistic models as well as the simplified empirical models have been summarized. Their limitations have been identified and general methods for calibration and validation have been presented.

Published
2022

8. Seasonal and diurnal variability of N2O emissions from a full-scale municipal wastewater treatment plant.

Author

Daelman, Matthijs R.J., van Voorthuizen, Ellen M., van Dongen, Udo G.J.M., Volcke, Eveline I.P., and van Loosdrecht, Mark C.M.

Subjects
*NITROGEN oxides, *SEWAGE disposal plants, *NITROGEN removal (Water purification), *GLOBAL warming, *ACTIVATED sludge process
Abstract

During nitrogen removal in conventional activated sludge processes, nitrous oxide can be emitted. With a global warming potential of 298 CO 2 -equivalents it is an important greenhouse gas that affects the sustainability of wastewater treatment. The present study reports nitrous oxide emission data from a 16 month monitoring campaign on a full-scale municipal wastewater treatment. The emission demonstrated a pronounced diurnal and seasonal variability. This variability was compared with the variability of a number of process variables that are commonly available on a municipal wastewater treatment plant. On a seasonal timescale, the occurrence of peaks in the nitrite concentration correlated strongly with the emission. The diurnal trend of the emission coincided with the diurnal trend of the nitrite and nitrate concentrations in the tank, suggesting that suboptimal oxygen concentrations may induce the production of nitrous oxide during both nitrification and denitrification. This study documents an unprecedented dataset that could serve as a reference for further research. [ABSTRACT FROM AUTHOR]

Published
2015
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