Effect of influent nitrogen concentration on feasibility of short-cut nitrification during wastewater treatment in activated sludge systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F15%3A67414" target="_blank" >RIV/60460709:41210/15:67414 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1515/chempap-2015-0095" target="_blank" >http://dx.doi.org/10.1515/chempap-2015-0095</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/chempap-2015-0095" target="_blank" >10.1515/chempap-2015-0095</a>
Alternative languages
Result language
angličtina
Original language name
Effect of influent nitrogen concentration on feasibility of short-cut nitrification during wastewater treatment in activated sludge systems
Original language description
The inhibitory effect of free ammonia and free nitrous acid on nitrite-oxidising bacteria (NOB) was studied in a laboratory-scale sequencing batch reactor with a suspended microbial culture. The reactor was operated at 15 °C, with a dissolved oxygen concentration in excess of 5 mg L-1 and a nitrogen-loading rate of 0.2 kg m-3 d-1. Diluted reject water was used as influent. N?NO2- represented more than 90 % of all of the oxidised nitrogen, with influent TAN concentrations of 600 mg L-1, 300 mg L-1 and 150 mg L-1, respectively. With a TAN concentration of 75 mg L-1, a gradual increase in N?NO3- concentration was detected, indicating the threshold value enabling short-cut nitrification (SN) to be between 150 mg L-1 and 75 mg L-1 under the pertaining conditions. Next, the influent concentration of TAN was gradually increased from 75 mg L-1 to 1000 mg L-1 but the nitrite accumulation was not restored.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DJ - Pollution and water control
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Papers-Chemicke zvesti
ISSN
0366-6352
e-ISSN
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Volume of the periodical
69
Issue of the periodical within the volume
7
Country of publishing house
SK - SLOVAKIA
Number of pages
9
Pages from-to
921-929
UT code for WoS article
000351637500003
EID of the result in the Scopus database
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