How biomass growth mode affects ammonium oxidation start-up and NOB inhibition in the partial nitritation of cold and diluted reject water

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F17%3A43913547" target="_blank" >RIV/60461373:22320/17:43913547 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41210/19:79918 RIV/60461373:22320/19:43920111

Result on the web

<a href="http://www.tandfonline.com/doi/pdf/10.1080/09593330.2017.1403491?needAccess=true" target="_blank" >http://www.tandfonline.com/doi/pdf/10.1080/09593330.2017.1403491?needAccess=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/09593330.2017.1403491" target="_blank" >10.1080/09593330.2017.1403491</a>

Result language

angličtina

Original language name

How biomass growth mode affects ammonium oxidation start-up and NOB inhibition in the partial nitritation of cold and diluted reject water

Original language description

The inhibition of undesirable nitrite oxidizing bacteria (NOB) and desirable ammonium oxidizing bacteria (AOB) by free ammonia (FA) and free nitrous acid (FNA) in partial nitritation (PN) is crucially affected by the biomass growth mode (suspended sludge, biofilm, encapsulation). But, the limitations of these modes towards less concentrated reject waters (≤600 mg-N L−1) are unclear. Therefore, this work compares the start-up and stability of three PN sequencing batch reactors (SBRs) with biomass grown in one of the three modes: suspended sludge, biofilm and biomass encapsulated in polyvinyl alcohol (PVA) pellets. The SBRs were operated at 15°C with influent total ammonium nitrogen (TAN) concentrations of 75–600 mg-TAN L−1. PN start-up was twice as fast in the biofilm and encapsulated biomass SBRs than in the suspended sludge SBR. After start-up, PN in the biofilm and suspended sludge SBRs was stable at 150–600 mg-TAN L−1. But, at 75 mg-TAN L−1, full nitrification gradually developed. In the encapsulated biomass SBR, full nitrification occurred even at 600 mg-TAN L−1, showing that NOB in this set-up can adapt even to 4.3 mg-FA L−1 and 0.27 mg-FNA L−1. Thus, PN in the biofilm was best for the treatment of an influent containing 150–600 mg-TAN L−1.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20800 - Environmental biotechnology

Project

<a href="/en/project/QK1710176" target="_blank" >QK1710176: Two-stage treatment of digestate liquor enabling rational use of nutrients and water</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Environmental Technology

ISSN

0959-3330

e-ISSN

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Volume of the periodical

2017

Issue of the periodical within the volume

Published online: 21 Nov 2017

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

1-10

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85034627737