Magdalena Łagocka’s research while affiliated with Wrocław University of Science and Technology and other places

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (2)


The Effect of Nitrite and Free Nitrous Acid on the Activity Of Candidatus Microthrix Parvicella – the Key Microorganism Responsible for Activated Sludge Bulking
  • Article

January 2022

·

32 Reads

SSRN Electronic Journal

·

·

·

[...]

·

Magdalena Łagocka

Fig. 4 TSS concentration in both reactors during the experiment
Different approaches to anammox start-up presented in the literature Start-up strategy Type of reactor Process parameters Duration of the start-up Achieved effects Author
a NH4–N, NO2–N, and NO3–N concentration in the influent medium. b NH4–N, NO2–N, and NO3–N concentration in the R1 effluent and c NH4–N, NO2–N, and NO3–N concentration in the R2 effluent
NLR in both reactors during the experiment
NRR in both reactors during the experiment
Fast start-up of anammox process with hydrazine addition
  • Article
  • Full-text available

May 2019

·

287 Reads

·

24 Citations

SN Applied Sciences

The anammox process is an economically favourable nitrogen removal process; however, low growth rates of anammox biomass block its more widespread application. As different approaches on techniques for anammox bacteria growth acceleration were tested, this study focused on long-term evaluation of hydrazine addition in the start-up phase. Effect of hydrazine addition (dose 3.7 mgN2H4 dm⁻³) was investigated in a pilot-scale SBR treating ammonia-rich reject water from sludge dewatering after partial nitritation process, and effects were compared to a reference reactor. Hydrazine addition resulted in much higher anammox biomass enrichment observed as higher nitrogen removal rate [0.512 kgN (m³ d)⁻¹ with hydrazine versus 0.256 kgN (m³ d)⁻¹ without reagent]. Sludge from chemically stimulated reactor revealed also higher (by 22.6%) specific anammox activity rate than the reference. After the hydrazine addition was stopped, observed process rates remained stable and no regression in the nitrogen removal efficiency could be noticed. In the final phase, nitrogen removal rate was only 48.7% of process rate in the reactor previously stimulated by hydrazine. Results of the experiment confirmed positive effect of hydrazine presence on anammox bacteria enrichment process.

Download

Citations (1)


... Introducing pyrrhotite (FeS) accelerated AnAOB growth in 18 days, surpassing 96 % TNRE in a lab UASB system [115]. Conversely, Miodoński et al. [116] used 3.7 mg/L of N 2 H 4 for rapid anammox initiation in a pilot SBR for sidestream wastewater treatment. This dosage was maintained over 36 days, resulting in an NRR of 0.519 g/L/d of N. ...

Reference:

Removal of nitrogen from wastewater: Unsolved problems and possible solutions with partial denitrification/anammox systems
Fast start-up of anammox process with hydrazine addition

SN Applied Sciences