Potential of food waste-derived volatile fatty acids as alternative carbon source for denitrifying moving bed biofilm reactors

Tugba Sapmaz*, Reza Manafi, Amir Mahboubi, Dag Lorick, Derya Y. Koseoglu-Imer, Mohammad J. Taherzadeh

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

21 Atıf (Scopus)

Özet

Fossil-based materials such as methanol are frequently used in the denitrification process of advanced biological wastewater treatment as external carbon source. Volatile fatty acids (VFAs) produced by anaerobic digestion of food waste, are sustainable compounds with the potential to act as carbon sources for denitrification, reducing carbon footprint and material costs. In this study, the effectiveness of food waste-derived VFAs (AD-VFA) was investigated in the post-denitrification process in comparison with synthetic VFA and methanol as carbon sources. Acetic acid had the highest rate of disappearance among single tested VFAs with a denitrification rate of 0.44 g NOx-N removed/m2/day, indicating a preferential utilization pattern. While AD-VFA had a denitrification rate of 0.61 mg NOx-N removed/m2/day, sVFA had a rate of 0.57 mg NOx-N removed/m2/day, indicating that impurities in AD-VFA did not play substantial role in denitrification. AD-VFA proved to be promising carbon source alternative for denitrification in wastewater treatment plants.

Orijinal dilİngilizce
Makale numarası128046
DergiBioresource Technology
Hacim364
DOI'lar
Yayın durumuYayınlandı - Kas 2022

Bibliyografik not

Publisher Copyright:
© 2022 The Author(s)

Finansman

The authors would like to thank the Sweden's Innovation Agency, Swedish Research Council, and the University of Borås for their technical and financial support of this work. We also thank Lucica Enache and Ann Mattsson from Gryaab-Ryaverket WWTP, Gothenburg, for their kind technical and scientific support. The first author (T.S) is sponsored via PhD grant from Turkish Scientific and the Technical Research Council TUBITAK (2211-A Internal Graduate Scholarship Programme). The authors would like to thank the Sweden’s Innovation Agency, Swedish Research Council, and the University of Borås for their technical and financial support of this work. We also thank Lucica Enache and Ann Mattsson from Gryaab-Ryaverket WWTP, Gothenburg, for their kind technical and scientific support. The first author (T.S) is sponsored via PhD grant from Turkish Scientific and the Technical Research Council TUBITAK (2211-A Internal Graduate Scholarship Programme).

FinansörlerFinansör numarası
Gryaab-Ryaverket WWTP
Sweden's Innovation Agency
Technical Research Council TUBITAK
VINNOVA
Vetenskapsrådet
Högskolan i Borås

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