Integration of the sulfate reduction and anammox processes for enhancing sustainable nitrogen removal in granular sludge reactors

Dominika Derwis; Joanna Majtacz; Przemysław Kowal; Hussein Al-Hazmi; Jun Zhai; Slawomir Ciesielski; Grzegorz Piechota; Jacek Mąkinia

doi:10.1016/j.biortech.2023.129264

Integration of the sulfate reduction and anammox processes for enhancing sustainable nitrogen removal in granular sludge reactors

Abstract

The Anammox and Sulfate Reduction Ammonium Oxidation processes were compared in two granular sequencing batch reactors operated for 160 days under anammox conditions. It was hypothesized that increasing the concentration of SO42− may positively influence the rate of N removal under anaerobic conditions and it was tested whether SO42− reduction and anammox occur independently or are related to each other. The cooperation of N-S cycles by increasing the concentration of influent SO42− to 952 mg S/L in the second reactor, a higher ammonium utilization rate and sulfate utilization rate was achieved compared to the first reactor, i.e., 2.1-fold and 15-fold, respectively. Nitrosomonas played the dominant role in the N metabolism, while Thauera – in the S metabolism. This study highlights the benefits of linking the N-S cycles as an effective approach for the treatment of NH4+ and SO42− – rich wastewater, including lower substrate removal cost and reduced energy consumption.

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Authors (8)

Dominika Derwis mgr inż.
Joanna Majtacz dr inż.
Przemysław Kowal dr inż.
Hussein Al-Hazmi dr inż.
Jun Zhai
- Chongqing University
Slawomir Ciesielski
- University of Warmia and Mazury in Olsztyn
Grzegorz Piechota
- Laboratory of Biogas Research and Analysis
Jacek Mąkinia prof. dr hab. inż.

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Keywords

SULFATE REDUCTIONDENITRIFICATIONANAMMOXTHAUERANITROSOMONAS

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

BIORESOURCE TECHNOLOGY no. 383,
ISSN: 0960-8524

Language:

English

Publication year:

2023

Bibliographic description:

Derwis D., Majtacz J., Kowal P., Al-Hazmi H., Zhai J., Ciesielski S., Piechota G., Mąkinia J.: Integration of the sulfate reduction and anammox processes for enhancing sustainable nitrogen removal in granular sludge reactors// BIORESOURCE TECHNOLOGY -Vol. 383, (2023), s.129264-

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