Good servant, bad master: Sulfide influence on partial nitritation of sewage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F17%3A43913546" target="_blank" >RIV/60461373:22320/17:43913546 - isvavai.cz</a>

Result on the web

<a href="http://wst.iwaponline.com/content/early/2017/09/11/wst.2017.490" target="_blank" >http://wst.iwaponline.com/content/early/2017/09/11/wst.2017.490</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wst.2017.490" target="_blank" >10.2166/wst.2017.490</a>

Result language

angličtina

Original language name

Good servant, bad master: Sulfide influence on partial nitritation of sewage

Original language description

When applying partial nitritation (PN) to anaerobically pre-treated sewage, ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) will be exposed to dissolved sulfide and methane. Both sulfide and methane may inhibit nitrification. To gain knowledge necessary for sustaining PN under these conditions, we exposed an AOB enrichment and a mixed nitrifying culture to dissolved sulfide and methane. In the mixed nitrifying culture, sulfide selectively inhibited NOB activity (KI,AOB1 ? 150 mg-S L1, KI,NOB ? 10 mg-S L?1) which shows that sulfide may help establish PN. The AOB enrichment showed similar KI,AOB2 (130 mg-S L?1), but nitritation activity lagged longer than the time necessary to remove sulfide from the liquid. This demonstrates that feeding of sulfide into established PN should be avoided. Methane inhibition of AOB enrichment was assessed in batch assays with 10 mg-CH4 L1. As compared to control without methane, AOB enrichment activity was identical. Up to 51% of methane was converted to methanol, thus reducing the greenhouse gas emissions.

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

20800 - Environmental biotechnology

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

Water Science and Technology

ISSN

0273-1223

e-ISSN

—

Volume of the periodical

76

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

3258-3268

UT code for WoS article

000417838300010

EID of the result in the Scopus database

2-s2.0-85038569253