Evaluation of the denitrifying microbiota of anoxic reactors

FEMS Microbiology Ecology
C EtchebehereL Muxí

Abstract

Removal of inorganic nitrogen compounds from wastewaters can be accomplished by a combination of the biological processes of nitrification and denitrification. The information on the microbiota present in denitrifying reactors is still scarce. In the present work the evaluation of the denitrifying microbiota of different reactor sludges was performed by specific activity measurements and MPN count of denitrifiers. We also present the isolation and physiological and phylogenetic characterisation of denitrifying bacteria from the anoxic reactor of a combined system treating landfill leachate. Specific denitrifying activity measurements were faster to perform and more reliable than MPN enumerations. 16S rDNA characterisation of the isolates showed that they belonged to the genera Thauera, Acidovorax and Alcaligenes and were closely related to microorganisms retrieved from ecosystems rich in recalcitrant compounds. Two of the isolates could grow on aromatic compounds as sole carbon source.

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Citations

Jun 15, 2007·Research in Microbiology·Atya KapleyHemant J Purohit
Aug 12, 2016·Journal of Hazardous Materials·Ekrem AydınMehmet Erdem
Jun 13, 2006·Journal of Nursing Measurement·Teresa J KelechiJan Wiseman
Jan 18, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Yanjun MaoTao Liu
Mar 30, 2011·Physiological Measurement·L P J TeunissenH A M Daanen
Aug 2, 2003·International Journal of Systematic and Evolutionary Microbiology·Silvana Tarlera, Ewald B M Denner
Jul 16, 2005·Biofouling·B V KjellerupP H Nielsen
Jan 26, 2007·FEMS Microbiology Letters·Ingela Noredal ThrobäckSara Hallin
Aug 1, 2002·FEMS Microbiology Ecology·Han-Woong LeeYong Keun Park
Jul 25, 2009·Applied Microbiology and Biotechnology·Angela CabezasClaudia Etchebehere
Oct 1, 2009·Applied Microbiology and Biotechnology·Sunil S AdavJ Y Lai
Nov 21, 2015·Genome Announcements·Elham EhsaniRamiro Vilchez-Vargas
May 1, 2002·FEMS Microbiology Ecology·C EtchebehereL Muxí
Oct 27, 2006·FEMS Microbiology Ecology·Anne FahyAndrew S Ball
Aug 17, 2019·Microbiology Resource Announcements·Hiroto IdeSatoshi Tsuneda
Jul 29, 2006·Microbial Ecology·M GentileC S Criddle

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