High-Rate Partial Nitritation of Municipal Wastewater after Psychrophilic Anaerobic Pretreatment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F17%3A43913548" target="_blank" >RIV/60461373:22320/17:43913548 - isvavai.cz</a>

Result on the web

<a href="https://pubs.acs.org/doi/abs/10.1021/acs.est.7b02078" target="_blank" >https://pubs.acs.org/doi/abs/10.1021/acs.est.7b02078</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.est.7b02078" target="_blank" >10.1021/acs.est.7b02078</a>

Result language

angličtina

Original language name

High-Rate Partial Nitritation of Municipal Wastewater after Psychrophilic Anaerobic Pretreatment

Original language description

Partial nitritation/anammox can provide energy-efficient nitrogen removal from the main stream of municipal wastewater. The main bottleneck is the growth of nitrite oxidizing bacteria (NOB) at low temperatures (&lt;15 °C). To produce effluent suitable for anammox, real municipal astewater after anaerobic pretreatment was treated by enriched ammonium oxidizing bacteria (AOB) in suspended sludge SBR at 12 °C. NOB were continually washed out using aerobic duration control strategy (ADCS). Solids retention time was set to 9−16 days. Using this approach, average ammonia conversion higher than 57% at high oxidation rate of 0.4 ± 0.1 kg-N kg-VSS−1 d−1 was achieved for more than 100 days. Nitrite accumulation (N−NO2−/N−NOX) of 92% was maintained. Thus, consistently small amounts of present NOB were efficiently suppressed. Our mathematical model explained how ADCS enhanced the inhibition of NOB growth via NH3 and HNO2. This approach will produce effluent suitable for anammox even under winter conditions in mild climates.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Name of the periodical

Environmental Science &amp; Technology

ISSN

0013-936X

e-ISSN

—

Volume of the periodical

51

Issue of the periodical within the volume

19

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

11029-11038

UT code for WoS article

000412716500014

EID of the result in the Scopus database

2-s2.0-85030749036