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Modelization of Nutrient Removal Processes at a Large WWTP Using a Modified ASM2d Model

Abstrakt

The biodegradation of particulate substrates starts by a hydrolytic stage. Hydrolysis is a slow reaction and usually becomes the rate limiting step of the organic substrates biodegradation. The objective of this work was to evaluate a novel hydrolysis concept based on a modification of the activated sludge model (ASM2d) and to compare it with the original ASM2d model. The hydrolysis concept was developed in order to accurately predict the use of internal carbon sources in enhanced biological nutrient removal (BNR) processes at a full scale facility located in northern Poland. Both hydrolysis concepts were compared based on the accuracy of their predictions for the main processes taking place at a full-scale facility. From the comparison, it was observed that the modified ASM2d model presented similar predictions to those of the original ASM2d model on the behavior of chemical oxygen demand (COD), NH4-N, NO3-N, and PO4-P. However, the modified model proposed in this work yield better predictions of the oxygen uptake rate (OUR) (up to 5.6 and 5.7%) as well as in the phosphate release and uptake rates.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
International Journal of Environmental Research and Public Health nr 15, wydanie 12, strony 1 - 8,
ISSN: 1660-4601
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Drewnowski J., Mąkinia J., Kopec L., Fernandez-Morales F.: Modelization of Nutrient Removal Processes at a Large WWTP Using a Modified ASM2d Model// International Journal of Environmental Research and Public Health. -Vol. 15, iss. 12 (2018), s.1-8
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/ijerph15122817
Bibliografia: test
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Weryfikacja:
Politechnika Gdańska

wyświetlono 90 razy

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