Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 492885
Title Effect of salinity on nitrification efficiency and structure of ammonia-oxidizing bacterial communities in a submerged fixed bed bioreactor
Author(s) Cortés-Lorenzo, C.; Rodríguez-Díaz, M.; Sipkema, D.; Juárez-Jiménez, B.; Rodelas, B.; Smidt, H.; González-López, J.
Source Chemical Engineering Journal 266 (2015). - ISSN 1385-8947 - p. 233 - 240.
Department(s) Microbiology
Publication type Refereed Article in a scientific journal
Publication year 2015
Abstract The effect of salt (NaCl) on biological nitrogen removal and community structure of ammonia-oxidizing bacteria (AOB) was investigated in a submerged fixed bed bioreactor (SFBBR). Influent wastewater was supplemented with NaCl at 0 (control), 3.7, 24.1 and 44.1 g/L, and the rate of ammonia removal efficiency was measured by ion chromatography. The structure of the AOB community was profiled by 454-pyrosequencing, based on the amplification of partial ammonia-monooxygenase subunit A (amoA) genes. Salinity did not inhibit nitrification at 3.7 g/L, while ammonia oxidation activity significantly decreased and nitrite was consequently accumulated in the SFBBR when the salt concentration was ¿24.1 g/L. The sequencing of amoA genes revealed that many of the OTUs found in the control experiment were still present at the full range of NaCl studied, while concentrations of 24.1 and 44.1 g of NaCl/L promoted the emergence of new OTUs phylogenetically related to AOB described in saline environments
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