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The Effect of Influent Characteristics and Operational Conditions over the Performance and Microbial Community Structure of Partial Nitritation Reactors

1
Institute of Water Research, University of Granada, C/Ramón y Cajal, 4, Granada 18071, Spain
2
Department of Civil Engineering, University of Granada, Campus de Fuentenueva, s/n, Granada 18071, Spain
*
Author to whom correspondence should be addressed.
Water 2014, 6(7), 1905-1924; https://doi.org/10.3390/w6071905
Received: 11 April 2014 / Revised: 13 June 2014 / Accepted: 19 June 2014 / Published: 26 June 2014
Nitrogen is a main contaminant of wastewater worldwide. Novel processes for nitrogen removal have been developed over the last several decades. One of these is the partial nitritation process. This process includes the oxidation of ammonium to nitrite without the generation of nitrate. The partial nitritation process has several advantages over traditional nitrification-denitrification processes for nitrogen removal from wastewaters. In addition, partial nitritation is required for anammox elimination of nitrogen from wastewater. Partial nitritation is affected by operational conditions and substances present in the influent, such as quinolone antibiotics. In this review, the impact that several operational conditions, such as temperature, pH, dissolved oxygen concentration, hydraulic retention time and solids retention time, have over the partial nitritation process is covered. The effect of quinolone antibiotics and other emerging contaminants are discussed. Finally, future perspectives for the partial nitritation process are commented upon. View Full-Text
Keywords: partial nitritation; operational conditions; antibiotic; wastewater partial nitritation; operational conditions; antibiotic; wastewater
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Rodriguez-Sanchez, A.; Gonzalez-Martinez, A.; Martinez-Toledo, M.V.; Garcia-Ruiz, M.J.; Osorio, F.; Gonzalez-Lopez, J. The Effect of Influent Characteristics and Operational Conditions over the Performance and Microbial Community Structure of Partial Nitritation Reactors. Water 2014, 6, 1905-1924.

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