The selective salinity and hydrazine parameters for the start-up of non-anammox-specific biomass SBR - Publikacja - MOST Wiedzy

Twoje konto

zaloguj

Wyszukiwarka

The selective salinity and hydrazine parameters for the start-up of non-anammox-specific biomass SBR

Abstrakt

The presence of ammonium (NH 4+ ) in wastewater above the permissible limits leads to undesirable ecological impact and public health concerns. In this study, the anaerobic ammonium oxidizing (anammox) bacteria-mediated nitrogen removal was investigated using a sequential batch reactor (SBR). Effects of different salinity levels were evaluated on the bacterial activity at: mild (below 0.2 g NaCl/L), elevated (18.2 g NaCl/L) and suitable salinity (2–0.5 g NaCl/L) levels mimicking the environmental conditions that are present in real wastewater. Within a suitable salinity period of 0.5–2 g NaCl/L, the highest average total nitrogen removal efficiencies (TNREs) and total nitrogen removal rates (TNRRs) of 67 (± 11)% and 37 (± 29) g N/m 3 /d, respectively, were achieved. In addition to the salinity tests, the effect of relatively high nitrite levels (> 40 mg N/L) was observed in the reactor resulting in the decrease in anammox activity, but increasing biomass potential for the treatment of high nitrite containing wastewater. Interestingly, the supplementation of hydrazine at 7.5 mg N 2 H 4 /L indicated enhanced anammox activity with a nitrogen removal rate of 0.7 ± 0.01 mg N/g MLSS/h, while test without hydrazine showed a rate of 0.68 ± 0.06 mg N/g MLSS/h. Therefore, denitrifying activity decreased with the addition of hydrazine, which on the other hand benefits the anammox start-up. Illumina sequencing analysis revealed that the microbial community has changed with the rise of the salinity levels and was dominated with Anaerolineae, Gammaproteobacteria, Clostridia and various key anammox organisms, such as Candidatus Brocadia and Candidatus Kuenenia strains (at 3%).

Cytowania

  • 1 4

    CrossRef

  • 0

    Web of Science

  • 1 6

    Scopus

Autorzy (15)

Cytuj jako

Pełna treść

pełna treść publikacji nie jest dostępna w portalu

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
International Journal of Environmental Science and Technology nr 20, strony 12597 - 12610,
ISSN: 1735-1472
Język:
angielski
Rok wydania:
2023
Opis bibliograficzny:
Zekker I., Rikmann E., Oja J., Anslan S., Borzyszkowska A. F., Zielińska-Jurek A., Kumar R., Shah L. A., Naeem M., Zahoor M., Setyobudi R. H., Bhowmick G. D., Khattak R., Burlakovs J., Tenno T.: The selective salinity and hydrazine parameters for the start-up of non-anammox-specific biomass SBR// International Journal of Environmental Science and Technology -Vol. 20,iss. 11 (2023), s.12597-12610
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s13762-023-05055-9
Źródła finansowania:
Weryfikacja:
Politechnika Gdańska

wyświetlono 13 razy

Publikacje, które mogą cię zainteresować

Application of the Anammox Process for Treatment of Liquid Phase Digestate

2020

Combinated treatment of landfill leachates with wastewater in a sequencing batch reactor (SBR)

2010

Effects of Different Aeration Modes on Ammonia Removal from Sludge Digester Liquors in the Nitritation-Anammox Process

2014

Nitrogen removal via the nitrite pathway during wastewater co-treatment with ammonia-rich landfill leachates in a sequencing batch reactor

2014
Meta Tagi