Characteristics of Nitrifying Biomass from Sidestream Process Operated at Various Ph

• Autorzy: Pytiak Magdalena , Muszyński-Huhajło Mateusz , Janiak Kamil , Miodoński Stanisław

Identyfikatory

DOI

10.37190/epe250108

• Języki publikacji: EN

Abstrakty

EN

The nitritation process, i.e., ammonia to nitrite oxidation, is effectively utilized in various methods for treating reject water. The impact of pH on characteristics of nitrifying biomass was investigated in three experiments performed at pH 6.0, 6.5, and 7.0 using real dewatering liquor from the Wrocław Wastewater Treatment Plant. A comprehensive analysis was conducted by applying both microscopic examination and digital imaging to assess the morphology of activated sludge flocs. The aim was to understand how process conditions impact the physical properties and functional performance of nitrifying biomass. The study revealed significant differences between the results of experiments, i.e., considerable changes occurred in the morphology of the activated sludge flocs, mainly their size and structure, as well as filamentous bacteria content. The most substantial changes occurred in the experiment at pH 7.0, which can be attributed to the combined effect of process conditions, i.e., the optimal pH, sludge retention time, and dissolved oxygen concentration as well as the lowest free nitrous acid and free ammonia concentration.

Słowa kluczowe

EN

chemicals removal; dewatering; nitrification; wastewater treatment; activated sludge flocs; waste water treatment plant; ammonia

PL

usuwanie chemikaliów; odwadnianie; nitryfikacja; oczyszczanie ścieków; kłaczki osadu czynnego; zakład oczyszczania ścieków; amoniak

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2025
• Tom: Vol. 51, nr 1
• Strony: 133--144
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Pytiak Magdalena

• Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

• https://orcid.org/0009-0008-1452-2615

autor

Muszyński-Huhajło Mateusz

• Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

• https://orcid.org/0000-0001-6639-8320

autor

Janiak Kamil

• Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

• https://orcid.org/0000-0001-5021-9084

autor

Miodoński Stanisław

• Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

• https://orcid.org/0000-0002-3917-3772

Bibliografia

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