Applicability of one-stage partial nitritation and anammox in MBBR for anaerobically pre-treated municipal wastewater

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F16%3A43902984" target="_blank" >RIV/60461373:22330/16:43902984 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/16:43902984

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10295-016-1766-2" target="_blank" >http://dx.doi.org/10.1007/s10295-016-1766-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10295-016-1766-2" target="_blank" >10.1007/s10295-016-1766-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Applicability of one-stage partial nitritation and anammox in MBBR for anaerobically pre-treated municipal wastewater

Popis výsledku v původním jazyce

Energy consumption of municipal wastewater treatment plants can be reduced by the anaerobic pretreatment of the main wastewater stream. After this pretreatment, nitrogen can potentially be removed by partial nitritation and anammox (PN/A). Currently, the application of PN/A is limited to nitrogen-rich streams (>500 mg L-1) and temperatures 25-35 degrees C. But, anaerobically pretreated municipal wastewater is characterized by much lower nitrogen concentrations (20-100 mg L-1) and lower temperatures (10-25 degrees C). We operated PN/A under similar conditions: total ammonium nitrogen concentration 50 mg L-1 and lab temperature (22 degrees C). PN/A was operated for 342 days in a 4 L moving bed biofilm reactor (MBBR). At 0.4 mg O-2 L-1, nitrogen removal rate 33 g N m(-3) day(-1) and 80 % total nitrogen removal efficiency was achieved. The capacity of the reactor was limited by low AOB activity. We observed significant anammox activity (40 g N m(-3) day(-1)) even at 12 degrees C, improving the applicability of PN/A for municipal wastewater treatment.

Název v anglickém jazyce

Applicability of one-stage partial nitritation and anammox in MBBR for anaerobically pre-treated municipal wastewater

Popis výsledku anglicky

Energy consumption of municipal wastewater treatment plants can be reduced by the anaerobic pretreatment of the main wastewater stream. After this pretreatment, nitrogen can potentially be removed by partial nitritation and anammox (PN/A). Currently, the application of PN/A is limited to nitrogen-rich streams (>500 mg L-1) and temperatures 25-35 degrees C. But, anaerobically pretreated municipal wastewater is characterized by much lower nitrogen concentrations (20-100 mg L-1) and lower temperatures (10-25 degrees C). We operated PN/A under similar conditions: total ammonium nitrogen concentration 50 mg L-1 and lab temperature (22 degrees C). PN/A was operated for 342 days in a 4 L moving bed biofilm reactor (MBBR). At 0.4 mg O-2 L-1, nitrogen removal rate 33 g N m(-3) day(-1) and 80 % total nitrogen removal efficiency was achieved. The capacity of the reactor was limited by low AOB activity. We observed significant anammox activity (40 g N m(-3) day(-1)) even at 12 degrees C, improving the applicability of PN/A for municipal wastewater treatment.

Druh

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

CEP obor

EI - Biotechnologie a bionika

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Industrial Microbiology and Biotechnology

ISSN

1367-5435

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

965-975

Kód UT WoS článku

000379625600007

EID výsledku v databázi Scopus

2-s2.0-84963653838