Direct and indirect effects of oxygen limitation on nitrification process applied to reject water treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F15%3A65839" target="_blank" >RIV/60460709:41210/15:65839 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/15:43900666

Výsledek na webu

<a href="http://dx.doi.org/10.1080/19443994.2014.950336" target="_blank" >http://dx.doi.org/10.1080/19443994.2014.950336</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/19443994.2014.950336" target="_blank" >10.1080/19443994.2014.950336</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Direct and indirect effects of oxygen limitation on nitrification process applied to reject water treatment

Popis výsledku v původním jazyce

The direct and indirect influence of temporary oxygen limitation on the nitrification of reject water was investigated using a continuous stirred tank bioreactor operated for 330 d at laboratory temperature (23 ? 1°C). A decrease in dissolved oxygen (DO)concentration from 3 to 0.7 mg L-1 lasted for 38 d and led to effective nitrite accumulation?more than 95% of total oxidized nitrogen was present as nitrite. The drop of DO concentration, at the same time, caused a decrease in the nitrogen oxidation rate from 1.36 to 0.73 kgNm-3 d-1. After a subsequent DO concentration increase to 3 mg L-1, the nitrite accumulation remained stable for another 90 d. This development was caused mainly by the indirect effects of DO limitation, consisting especially in thechange of nitrogen species represented. A significant increase in free nitrous acid concentration induced by temporary DO limitation seems to be the key factor in this respect. The results of Fluorescence in situ hybridization analysis c

Název v anglickém jazyce

Direct and indirect effects of oxygen limitation on nitrification process applied to reject water treatment

Popis výsledku anglicky

The direct and indirect influence of temporary oxygen limitation on the nitrification of reject water was investigated using a continuous stirred tank bioreactor operated for 330 d at laboratory temperature (23 ? 1°C). A decrease in dissolved oxygen (DO)concentration from 3 to 0.7 mg L-1 lasted for 38 d and led to effective nitrite accumulation?more than 95% of total oxidized nitrogen was present as nitrite. The drop of DO concentration, at the same time, caused a decrease in the nitrogen oxidation rate from 1.36 to 0.73 kgNm-3 d-1. After a subsequent DO concentration increase to 3 mg L-1, the nitrite accumulation remained stable for another 90 d. This development was caused mainly by the indirect effects of DO limitation, consisting especially in thechange of nitrogen species represented. A significant increase in free nitrous acid concentration induced by temporary DO limitation seems to be the key factor in this respect. The results of Fluorescence in situ hybridization analysis c

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Desalination and Water Treatment

ISSN

1944-3994

e-ISSN

—

Svazek periodika

56

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

10

Strana od-do

598-607

Kód UT WoS článku

000361994300004

EID výsledku v databázi Scopus

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