Primary sludge fermentate as carbon source for mainstream partial denitrification-anammox (PdNA)

Primary sludge fermentate as carbon source for mainstream partial denitrification-anammox (PdNA)

© 2020 Water Environment Federation.

Bibliographische Detailangaben
Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 93(2021), 7 vom: 19. Juli, Seite 1044-1059
1. Verfasser: Ali, Priyanka (VerfasserIn)
Weitere Verfasser: Zalivina, Nadezhda, Le, Tri, Riffat, Rumana, Ergas, Sarina, Wett, Bernhard, Murthy, Sudhir, Al-Omari, Ahmed, deBarbadillo, Christine, Bott, Charles, De Clippeleir, Haydée
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Journal Article deammonification fermentation mainstream nutrient removal short-cut nitrogen removal Sewage Waste Water Carbon 7440-44-0 mehr... Nitrogen N762921K75
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520 |a Primary sludge fermentate, a concentrated hydrolyzed wastewater carbon, was evaluated for use as an alternative carbon source for mainstream partial denitrification-anammox (PdNA) in a suspended growth activated sludge process in terms of partial denitrification (PdN) efficiency, PdNA nitrogen removal contributions, and final effluent quality. Fermenter operation at a 2-day sludge retention time (SRT) resulted in the maximum achievable yield of 0.14 ± 0.05 g sCOD/g VSS without release of excessive ammonia and phosphorus to the system. Based on the results of batch experiments, fermentate addition led to PdN efficiency of 93 ± 14%, which was similar to acetate at a nitrate residual of 2-3 mg N/L. In the pilot-scale mainstream deammonification reactor, PdN efficiency using fermentate was 49 ± 24%, which was lower than acetate (66 ± 24% during acetate period I and 70 ± 21% during acetate period II), most probably due to lower nitrate and ammonium kinetics in the PdN zone. Methanol cost-saving potential for the application of PdNA as the main short-cut nitrogen pathway was estimated to be 30% to 55% depending on the PdN efficiency achieved. PRACTITIONER POINTS: Primary sludge fermentate was evaluated as an alternative carbon source for mainstream partial denitrification-anammox (PdNA). Fermenter operated at a 1 to 2 day SRT resulted in the maximum achievable yield without the release of excessive ammonia and phosphorus to the system. Although 93% partial denitrification efficiency was achieved with fermentate in batch experiments, around 49% PdN efficiency was achieved in pilot studies. Application of PdNA with fermentate can result in significant methanol cost savings 
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650 4 |a deammonification 
650 4 |a fermentation 
650 4 |a mainstream 
650 4 |a nutrient removal 
650 4 |a short-cut nitrogen removal 
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700 1 |a Zalivina, Nadezhda  |e verfasserin  |4 aut 
700 1 |a Le, Tri  |e verfasserin  |4 aut 
700 1 |a Riffat, Rumana  |e verfasserin  |4 aut 
700 1 |a Ergas, Sarina  |e verfasserin  |4 aut 
700 1 |a Wett, Bernhard  |e verfasserin  |4 aut 
700 1 |a Murthy, Sudhir  |e verfasserin  |4 aut 
700 1 |a Al-Omari, Ahmed  |e verfasserin  |4 aut 
700 1 |a deBarbadillo, Christine  |e verfasserin  |4 aut 
700 1 |a Bott, Charles  |e verfasserin  |4 aut 
700 1 |a De Clippeleir, Haydée  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Water environment research : a research publication of the Water Environment Federation  |d 1998  |g 93(2021), 7 vom: 19. Juli, Seite 1044-1059  |w (DE-627)NLM098214292  |x 1554-7531  |7 nnns 
773 1 8 |g volume:93  |g year:2021  |g number:7  |g day:19  |g month:07  |g pages:1044-1059 
856 4 0 |u http://dx.doi.org/10.1002/wer.1492  |3 Volltext 
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