Final products and kinetics of biochemical and chemical sulfide oxidation under microaerobic conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F18%3A43915843" target="_blank" >RIV/60461373:22320/18:43915843 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.2166/wst.2018.485" target="_blank" >http://dx.doi.org/10.2166/wst.2018.485</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2166/wst.2018.485" target="_blank" >10.2166/wst.2018.485</a>

Result language

angličtina

Original language name

Final products and kinetics of biochemical and chemical sulfide oxidation under microaerobic conditions

Original language description

Hydrogen sulfide is a toxic and usually undesirable by-product of the anaerobic treatment of sulfate containing wastewater. It can be removed through microaeration, a simple and cost-effective method involving the application of oxygen limiting conditions (i.e., DO below 0.1 mg L-1). However, the exact transformation pathways of sulfide under microaerobic conditions are still unclear. In this paper, batch experiments were performed to study biochemical and chemical sulfide oxidation under microaerobic conditions. The biochemical experiments were conducted using a strain of Sulfuricurvum kujiense. Under microaerobic conditions, the biochemical sulfide oxidation rate (in mg S L-1 d-1) was approximately 2.5 times faster than the chemical sulfide oxidation rate. Elemental sulfur was the major end-product of both biochemical and chemical sulfide oxidation. During biochemical sulfide oxidation elemental sulfur was in the form of white flakes, while during chemical sulfide oxidation elemental sulfur created white suspension. Moreover, a mathematical model describing biochemical and chemical sulfide oxidation was developed and calibrated by the experimental results.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

10609 - Biochemical research methods

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

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

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Volume of the periodical

78

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

1916-1924

UT code for WoS article

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EID of the result in the Scopus database

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