Temat: anammox - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Qualitative analysis of bacterial biocenoses in two sequencing batch reactors treating reject water under different technological conditions
Autorzy:: Karło, A.
Ziembińska-Buczyńska, A.
Cema, G.
Surmacz-Górska, J.
Powiązania:: https://bibliotekanauki.pl/articles/363132.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: anammox
CANON
nitrification
PCR-DGGE
RT-PCR-DGGE
nitryfikacja
Opis:: Complete nitrogen removal over nitrite (CANON) was used to treat reject water with ammonia concentrations ranging from 70 to 154mg·L-1. Two experimental sequential batch reactors, SBR_A and SBR_B, differed in the time of the reject water inflow (6h40min vs 40min), process temperature (25 vs 29°C), and the number of aeration periods per day (3 vs 6, respectively). Nitrogen removal efficiency was higher in SBR_B (50-90%) than in SBR_A (40-80%). Analysis of total (PCR-DGGE) and active (RT-PCR-DGGE) bacteria revealed that the biodiversity of the bacterial biocenoses, expressed as the Shannon-Wiener Biodiversity Index, was higher in SBR_B (2.75-3.10) than in SBR_A (1.80-2.75).
Źródło:: Environmental Biotechnology; 2016, 12, 1; 26-33
1734-4964
Pojawia się w:: Environmental Biotechnology
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Start-up, modelling and simulation of the anammox process in a membrane bioreactor
Autorzy:: Cema, G.
Sochacki, A.
Kubiatowicz, J.
Gutwiński, P.
Surmacz-Górska, J.
Powiązania:: https://bibliotekanauki.pl/articles/185149.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: activate sludge model
anammox
computer simulation
modeling
nitrogen removal
aktywowane modelu osadu
symulacja komputerowa
modelowanie
usuwanie azotu
Opis:: There are certain well-known methods of diminishing concentrations of nitrogen compounds, but they are ineffective in case of nitrogen-rich wastewater with a low content of biodegradable carbon. Partial nitritation followed by anaerobic ammonium oxidation (Anammox) process appear to be an excellent alternative for traditional nitrification and denitrification. This paper presents the feasibility of successful start-up of Anammox process in a laboratory-scale membrane bioreactor (MBR). It was shown that the combination of membrane technology and Anammox process allowed to create a new highly efficient and compact system for nitrogen removal. It was possible to achieve average nitrogen removal efficiency equal to 76.7 +/-8.3%. It was shown that the start-up period of 6 months was needed to obtain high nitrogen removal efficiency. The applied biochemical model of the Anammox process was based on the state-of-the-art Activated Sludge Model No.1 (ASM 1) which was modified for accounting activity of autotrophs (nitrite-oxidising bacteria and nitrateoxidising bacteria) and anammox bacteria. In order to increase the predictive power of the simulation selected parameters of the model were adjusted during model calibration. Readjustment of the model parameters based on the critically evaluated data of the reactor resulted in a satisfactory match between the model predictions and the actual observations.
Źródło:: Chemical and Process Engineering; 2012, 33, 4; 639-650
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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