Removal of nitrates from simulated ion-exchange brines with Paracoccus denitrificans encapsulated in Lentikats Biocatalyst

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F11%3A43881994" target="_blank" >RIV/44555601:13520/11:43881994 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0011916411001597" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0011916411001597</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.desal.2011.02.033" target="_blank" >10.1016/j.desal.2011.02.033</a>

Result language
angličtina
Original language name
Removal of nitrates from simulated ion-exchange brines with Paracoccus denitrificans encapsulated in Lentikats Biocatalyst
Original language description
A series of batch tests was carried out in order to optimize denitrification of brines from the regeneration of ion-exchange columns (12.14 g.L-1 Cl-, 1.35 g.L-1 SO42-, up to 2.86 g.L-1 N-NO3-) using Paracoccus denitrificans encapsulated in polyvinylalcohol matrix (Lentikats Biocatalyst, further LB). The elimination of nitrates followed zero-order kinetics, while the concentration of nitrite-intermediates peaked. Higher initial concentrations of nitrates resulted in faster denitrification. Higher testedconcentrations of salts did not affect the denitrification rate. They did however cause significant advancing of the nitrite peaks to nitrates minimum. Maximum obtained activity of 1 kg of LB was N1000 mg of N-NO3- removed per hour and the efficiency ofnitrates removal exceeded 99%.Denitrification activity of the LB systematically decreased during the course of repetitive experiments due to a lack of nutrients within the brines, disabling any proliferation of the encapsulated microorga
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
AA - Philosophy and religion
OECD FORD branch
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Project
<a href="/en/project/1M0554" target="_blank" >1M0554: Advanced Remedial Technologies and Processes</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
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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