Inhibition effect of free ammonia and free nitrous acid on nitrite-oxidising bacteria during sludge liquor treatment: influence of feeding strategy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F14%3A64094" target="_blank" >RIV/60460709:41210/14:64094 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22320/14:43897344

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Inhibition effect of free ammonia and free nitrous acid on nitrite-oxidising bacteria during sludge liquor treatment: influence of feeding strategy

Original language description

The importance of feeding strategy for the long-term selective inhibition of nitrite-oxidising bacteria (NOB) was demonstrated by comparison of laboratory-scale bioreactors: CSTR and SBR. Sludge liquor containing ammonia nitrogen in a range of 970?1500 mg L-1 was the influent of the reactors. The experiments were performed at (23 ? 2) °C, with high concentration of dissolved oxygen (up to 8 mg L-1) and with unlimited sludge retention time. In the SBR, permanent restriction of NOB activity was achieved for more than 700 days by the strong inhibition effect of fluctuating concentrations of free ammonia and free nitrous acid during the operational cycles of SBR. In contrast, nitrite-oxidising bacteria were able to gradually adapt to the conditions prevailing in CSTR and produce nitrate although the concentration of free ammonia and free nitrous acid significantly exceeded inhibition limits for NOB activity in this system.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DJ - Pollution and water control

OECD FORD branch

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Project

<a href="/en/project/QI91C199" target="_blank" >QI91C199: Optimization of farm vermicomposting technology</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Chemical Papers-Chemicke zvesti

ISSN

0366-6352

e-ISSN

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Volume of the periodical

68

Issue of the periodical within the volume

7

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

871-878

UT code for WoS article

000332958500003

EID of the result in the Scopus database

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