Removal of nitrates from high-salinity wastewaters from desulphurization process with denitrifying bacteria encapsulated in Lentikats Biocatalyst

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F12%3A%230002212" target="_blank" >RIV/46747885:24220/12:#0002212 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44555601:13520/12:43883952

Výsledek na webu

<a href="http://link.springer.com/article/10.1007%2Fs13762-012-0048-4#page-1" target="_blank" >http://link.springer.com/article/10.1007%2Fs13762-012-0048-4#page-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13762-012-0048-4" target="_blank" >10.1007/s13762-012-0048-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Removal of nitrates from high-salinity wastewaters from desulphurization process with denitrifying bacteria encapsulated in Lentikats Biocatalyst

Popis výsledku v původním jazyce

Successful elimination of high concentrations of N-NO (x) (-) (up to 250 mg/L) from high salinity wastewaters (up to 35 g/L Cl- + 17 g/L SO4 (2-)) originating from desulphurization process within coal power stations was achieved using pure cultures of denitrifying bacteria encapsulated in porous polyvinyl alcohol lenses (so called Lentikats Biocatalyst, LB). Laboratory batch tests revealed inhibitory influence of the raw wastewater on the denitrification activity, which was partially mitigated by the addition of P-PO4 (3-). In following continuous tests, the denitrification activities reached the range 150-450 mg N/h/kg LB, i.e., values suitable for industrial scale applications. The higher activities were achieved under a lower salinity, higher N-NO (x) (-) influent concentrations and a prolonged retention time. The effluent N-NO (x) (-) concentrations were below the determination limit of 5 mg/L. After a period of 3 months, a significant decrease of denitrification activity of Lentik

Název v anglickém jazyce

Removal of nitrates from high-salinity wastewaters from desulphurization process with denitrifying bacteria encapsulated in Lentikats Biocatalyst

Popis výsledku anglicky

Successful elimination of high concentrations of N-NO (x) (-) (up to 250 mg/L) from high salinity wastewaters (up to 35 g/L Cl- + 17 g/L SO4 (2-)) originating from desulphurization process within coal power stations was achieved using pure cultures of denitrifying bacteria encapsulated in porous polyvinyl alcohol lenses (so called Lentikats Biocatalyst, LB). Laboratory batch tests revealed inhibitory influence of the raw wastewater on the denitrification activity, which was partially mitigated by the addition of P-PO4 (3-). In following continuous tests, the denitrification activities reached the range 150-450 mg N/h/kg LB, i.e., values suitable for industrial scale applications. The higher activities were achieved under a lower salinity, higher N-NO (x) (-) influent concentrations and a prolonged retention time. The effluent N-NO (x) (-) concentrations were below the determination limit of 5 mg/L. After a period of 3 months, a significant decrease of denitrification activity of Lentik

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

<a href="/cs/project/1M0554" target="_blank" >1M0554: Pokročilé sanační technologie a procesy</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

International Journal of Environmental Science and Technology

ISSN

1735-1472

e-ISSN

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Svazek periodika

9

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

425-432

Kód UT WoS článku

000305033200004

EID výsledku v databázi Scopus

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