Substrate inhibition and pH effect on denitritation with granular biomass-Reference-Cited by-同舟云学术

Substrate inhibition and pH effect on denitritation with granular biomass

Published:2019-04-01 Issue:1 Volume:12 Page:91-96
ISSN:1337-978X
Container-title:Acta Chimica Slovaca
language:en
Short-container-title:

Author:

Kecskésová Stanislava¹,Imreová Zuzana¹,Kožárová Bibiána¹,Derco Ján¹,Drtil Miloslav¹

Affiliation:

1. Department of Environmental Engineering, Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinskeho 9, 812 37 Bratislava , Slovak Republic

Abstract

Abstract Undissociated HNO2 (up to 2 mg dm−3) was confirmed as substrate inhibitor for granular biomass from a denitritation upflow sludge bed reactor used for biological removal of nitrite. On the contrary, total nitrite nitrogen (N-NO2 up to 500 mg dm−3) and methanol (COD up to 2000 mg dm−3) were not proven to be inhibitors. pH also affected the denitritation efficiency (optimal pH was 5.9). Reduction of HNO2 concentration in the reactor by effluent recycling is recommended.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/acs-2019-0013

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