Removal of nitrates from water in bioreactors with corncob support and polyurethane foam

dc.contributor.author da Silva, Thais
dc.contributor.author Soupir, Michelle
dc.contributor.author da Silva Batista, Jesiane S
dc.contributor.author Stolle, Elaine M
dc.contributor.author Barana, Ana Claudia
dc.contributor.department Agricultural and Biosystems Engineering
dc.date.accessioned 2023-11-03T18:50:44Z
dc.date.available 2023-11-03T18:50:44Z
dc.date.issued 2023-08-22
dc.description.abstract The presence of nitrate in bodies of water can cause damage to the environment and, if consumed, to humans. Studies show that bioreactors filled with organic supports are efficient in removing nitrates from agricultural drainage waters, which are rich in nutrients. This work aimed to evaluate the removal of nitrates in a fixed bed bioreactor filled with two types of support medium: R1 (Reactor 1), with pieces of corn cob, and R2 (Reactor 2), with pieces of corn cob and Mini Biobobs®. The reactors were fed with agricultural drainage water enriched with 20 mg.L-1 of N-NO3 and operated with hydraulic detention times (HDT) of 96, 48, 24 and 16 hours. It was observed that, with the exception of the tests with TDH = 16 h, all the others presented effluent with a N-NO3 concentration below 10 mg.L-1, which meets the standards required by Brazilian legislation for the potability of water for human consumption. . Using the NMP technique, the presence of denitrifying bacteria was found in both reactors, proving the removal of nitrate by the heterotrophic denitrification process. It can be concluded that the reactors studied are efficient in removing nitrates from water.
dc.description.comments This article is published as Silva, T. da, Soupir, ML, da Silva Batista, JS., Stolle, EM., & Barana, AC (2023). Removal of nitrates from water in bioreactors with corncob support and polyurethane foam. Geama Magazine , 9 (2), 4–10. Retrieved from https://www.journals.ufrpe.br/index.php/geama/article/view/5342. Posted with permission. <br>This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License .
dc.identifier.issn 2447-0740
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/Dw88JPVw
dc.language.iso en
dc.publisher Copyright (c) 2023 Geama Magazine
dc.source.uri https://www.journals.ufrpe.br/index.php/geama/article/view/5342 *
dc.subject.disciplines DegreeDisciplines::Life Sciences::Agriculture
dc.subject.keywords denitrification, Biobob®, NMP, eutrophication
dc.title Removal of nitrates from water in bioreactors with corncob support and polyurethane foam
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication 04becbfb-7a97-4d96-a0dd-5514295530ee
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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