Industrial wastewater with high concentrations of nitrates and sulphates - biological treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F12%3A43893721" target="_blank" >RIV/60461373:22320/12:43893721 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Industrial wastewater with high concentrations of nitrates and sulphates - biological treatment

Popis výsledku v původním jazyce

The study has been focused on the biological removal of nitrate from industrial wastewaters coming from a technology of nitro-organic compounds production. The wastewater contained very high concentration of nitrates (1.5 to 2 g/l) accompanied by sulphates from 3 to 6 g/l, pH 1, temperature 15 °C and no organic matter. Batch experiments with non adapted activated sludge at different substrate type and dose were carried out to examine kinetics of biological removal of nitrates and sulphates. Results indicated a successive removal of nitrates and sulphates and a possibility to restrict the process only to denitrification by a limited addition of substrate. The continuous laboratory model including the neutralization tank, substrate dosing, reactors for denitrification and degasification, sedimentation tank, and sludge recirculation was operated entirely for nitrates removal. Wastewater was neutralized only to pH 2.5 calculated with alkalinity restored during denitrification. Efficiency o

Název v anglickém jazyce

Industrial wastewater with high concentrations of nitrates and sulphates - biological treatment

Popis výsledku anglicky

The study has been focused on the biological removal of nitrate from industrial wastewaters coming from a technology of nitro-organic compounds production. The wastewater contained very high concentration of nitrates (1.5 to 2 g/l) accompanied by sulphates from 3 to 6 g/l, pH 1, temperature 15 °C and no organic matter. Batch experiments with non adapted activated sludge at different substrate type and dose were carried out to examine kinetics of biological removal of nitrates and sulphates. Results indicated a successive removal of nitrates and sulphates and a possibility to restrict the process only to denitrification by a limited addition of substrate. The continuous laboratory model including the neutralization tank, substrate dosing, reactors for denitrification and degasification, sedimentation tank, and sludge recirculation was operated entirely for nitrates removal. Wastewater was neutralized only to pH 2.5 calculated with alkalinity restored during denitrification. Efficiency o

Druh

D - Stať ve sborníku

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

<a href="/cs/project/TA01020798" target="_blank" >TA01020798: Komplexní biotechnologie pro spojené odstraňování sulfanu z bioplynu a nutrientů z odpadních vod na čistírnách odpadních vod, bioplynových stanicích a podobných technologických celcích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

EcoTechnologies for wastewater treatment

ISBN

978-84-695-3605-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

"IT03"

Název nakladatele

International Water Association

Místo vydání

London

Místo konání akce

Santiago de Compostela

Datum konání akce

25. 6. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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