Impact of Aeration Control on N&lt;SUB&gt;2&lt;/SUB&gt;O Emission in a Full-Scale Activated Sludge Wastewater Treatment Plant

Filali, Ahlem; Fayolle, Yannick; Peu, Pascal; Philippe, L.; Nauleau, F.; Gillot, S.

doi:10.2175/193864713813525932

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Although the N 2 O emissions measured during this long-term study are high compared to the emission values presented in other recent studies , and the computational emission factor was more than 50 times higher than the factor presented by the IPCC, these results are in accordance with the outcomes for the long-term online measurement campaign implemented at the Kralingseveer WWTP . The Kralingseveer campaign, which is for the time being the only other full-scale online monitoring campaign ever executed, presented an emission factor of 2.8% for influent N, whereas in this study, an emission factor of 1.9% for influent N was introduced (Table ).…”

Section: Results and Discussionsupporting

confidence: 87%

Nitrous Oxide Production at a Fully Covered Wastewater Treatment Plant: Results of a Long-Term Online Monitoring Campaign

Kosonen¹,

Heinonen

Mikola³

et al. 2016

Environ. Sci. Technol.

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The nitrous oxide emissions of the Viikinmäki wastewater treatment plant were measured in a 12 month online monitoring campaign. The measurements, which were conducted with a continuous gas analyzer, covered all of the unit operations of the advanced wastewater-treatment process. The relation between the nitrous oxide emissions and certain process parameters, such as the wastewater temperature, influent biological oxygen demand, and ammonium nitrogen load, was investigated by applying online data obtained from the process-control system at 1 min intervals. Although seasonal variations in the measured nitrous oxide emissions were remarkable, the measurement data indicated no clear relationship between these emissions and seasonal changes in the wastewater temperature. The diurnal variations of the nitrous oxide emissions did, however, strongly correlate with the alternation of the influent biological oxygen demand and ammonium nitrogen load to the aerated zones of the activated sludge process. Overall, the annual nitrous oxide emissions of 168 g/PE/year and the emission factor of 1.9% of the influent nitrogen load are in the high range of values reported in the literature but in very good agreement with the results of other long-term online monitoring campaigns implemented at full-scale wastewater-treatment plants.

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Section: Results and Discussionsupporting

confidence: 87%

Nitrous Oxide Production at a Fully Covered Wastewater Treatment Plant: Results of a Long-Term Online Monitoring Campaign

Kosonen¹,

Heinonen

Mikola³

et al. 2016

Environ. Sci. Technol.

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“…The development of modern control technology using aeration control system strategies with different treatments shows that the consumption of electrical energy for treatment with controlled aeration systems is reduced by around 30% [1]. Methods with fuzzy logic techniques can be applied by utilizing the advantages in the process of linguistic reasoning without the need for complicated mathematical models.…”

Section: Industrialmentioning

confidence: 99%

Design of Liquid Waste Aerator Control Based on Fuzzy Logic

Mataram

Wijaya²

2020

jeei

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Liquid waste is the result of liquid production which is no longer used, so it must be processed and managed so as not to cause pollution and decrease in environmental quality. The biological wastewater treatment system can use the services of decomposing bacteria. This performance is greatly influenced by several factors, including the amount of waste water, the level of impurities, the availability of oxygen (O2), the type of dirt and so on. Parameters used as standard control of BOD and COD liquid waste standards meet the standards. An aerator in the form of an air pump is used to disperse high-pressure air in liquid waste containing oxygen in the process of aeration effluence, so that when air rises to the surface of the water oxygen binding will occur. The operation of the aerator is generally done manually, so that there is a waste of use of electrical energy. This paper discusses the design of an aerator operating control system on waste quality standards using one input fuzzy logic controller and one output. The main component of the hardware is the Uno type Arduino microcontroller used, with the sensor input in the form of COD and output in the form of long working hours of the aerator. The results obtained indicate that the control device is able to reduce the use of electrical energy by 31.03% and can work well based on the value of small deviations and controls capable of working at a set point of 6-10 hours.

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Model based predictive control for energy efficient biological nitrification process with minimal nitrous oxide production

Behera

Srinivasan

Chandran

et al. 2015

Chemical Engineering Journal

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Impact of Aeration Control on N<SUB>2</SUB>O Emission in a Full-Scale Activated Sludge Wastewater Treatment Plant

Cited by 4 publications

References 7 publications

Nitrous Oxide Production at a Fully Covered Wastewater Treatment Plant: Results of a Long-Term Online Monitoring Campaign

Nitrous Oxide Production at a Fully Covered Wastewater Treatment Plant: Results of a Long-Term Online Monitoring Campaign

Design of Liquid Waste Aerator Control Based on Fuzzy Logic

Model based predictive control for energy efficient biological nitrification process with minimal nitrous oxide production

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