@misc{10481/68536,
year = {2021},
url = {http://hdl.handle.net/10481/68536},
abstract = {Four granular sequencing batch reactors (GSBRs) were inoculated with four denitrifying
Pseudomonas strains carrying nosZ to study the process of granule formation, the operational
conditions of the bioreactors, and the carbon concentration needed for nitrate removal. The selected
Pseudomonas strains were P. stutzeri I1, P. fluorescens 376, P. denitrificans Z1, and P. fluorescens PSC26,
previously reported as denitrifying microorganisms carrying the nosZ gene. Pseudomonas denitrificans
Z1 produced fluffy, low-density granules, with a decantation speed below 10 m h−1
. However,
P. fluorescens PSC26, P. stutzeri I1, and P. fluorescens 376 formed stable granules, with mean size from 7
to 15 mm, related to the strain and carbon concentration. P. stutzeri I1 and P. fluorescens 376 removed
nitrate efficiently with a ratio in the range of 96%, depending on the source and concentration of
organic matter. Therefore, the findings suggest that the inoculation of GSBR systems with denitrifying
strains of Pseudomonas spp. containing the nosZ gene enables the formation of stable granules, the
efficient removal of nitrate, and the transformation of nitrate into nitrogen gas, a result of considerable
environmental interest to avoid the generation of nitrous oxide.},
organization = {LIFE16 ENV/ES/000196 project},
publisher = {MDPI},
keywords = {Pseudomonas},
keywords = {Granular biomass},
keywords = {Sequential batch reactor},
keywords = {Nitrate-polluted groundwater},
keywords = {Heterotrophic denitrification},
title = {Groundwater Nitrate Removal Performance of Selected Pseudomonas Strains Carrying nosZ Gene in Aerobic Granular Sequential Batch Reactors},
doi = {10.3390/w13081119},
author = {Hurtado Martínez, Miguel and Muñoz Palazón, Barbara and González Martínez, Alejandro and Manzanera Ruiz, Maximino Enrique and González López, Jesús Juan},
}