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The impact of ammonia nitrogen concentration and zeolite addition on the specific methanogenic activity of granular and flocculent anaerobic sludges

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Autor dc.contributor.author Milan Z.
Autor dc.contributor.author Montalvo S.
Autor dc.contributor.author Ilangovan K.
Autor dc.contributor.author Monroy O.
Autor dc.contributor.author Chamy R.
Autor dc.contributor.author Weiland P.
Autor dc.contributor.author Sanchez E.
Autor dc.contributor.author Borja R.
Fecha Ingreso dc.date.accessioned 2014-04-05T00:15:57Z
Fecha Disponible dc.date.available 2014-04-05T00:15:57Z
Fecha en Repositorio dc.date.issued 2014-04-04
dc.identifier 10.1080/10934521003709099
dc.description.abstract This work presents the effect of ammonia nitrogen concentration and zeolite addition on the specific methanogenic activity (SMA) of different anaerobic sludges with various physical structures (granular and flocculent), operating in batch conditions. Piggery, malting production and urban sludges derived from full-scale anaerobic reactors were tested in the experiment as the source of inoculum in batch digesters. It was found that piggery sludge was the most affected by the increase of ammonia nitrogen concentration while malting producing and municipal sludges were less affected. In general, the addition of zeolite at doses in the range of 0.01-0.1 g/g VSS reduced the inhibitory effect of N-NH+4 for piggery sludge (P.S.). For this sludge, the propionic:acetic ratio increased when the concentration of N-NH+4 increased, indicating that methanogenesis was affected. Finally, a study of the microbial population involved in this study for P.S. by using 16S rRNA based molecular techniques revealed a presence of microorganisms following the order: Methanococcaceae > Methanosarcina > Methanosaeta. Copyright © Taylor & Francis Group, LLC. en_US
dc.source Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Link Descarga dc.source.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-77954730521&partnerID=40&md5=ed95421ea3285b069a1b465de1e1c27f
Title dc.title The impact of ammonia nitrogen concentration and zeolite addition on the specific methanogenic activity of granular and flocculent anaerobic sludges en_US
Tipo dc.type Article
dc.description.keywords Ammonia nitrogen; Flocculent; Granular; Malting sludge; Piggery sludge; Specific methanogenic activity; Urban sludge; Batch reactors; RNA; Zeolites; Ammonia; acetic acid; ammonia; nitrogen; propionic acid; RNA 16S; zeolite; ammonia; nitrogen; zeolite; anaerobic reactor; article; chemical structure; controlled study; flocculation; flocculent anaerobic sludge; granular anaerobic sludge; inoculation; malting; Methanococcaceae; methanogenesis; Methanosaeta; Methanosarcina; microbial activity; microbial population dynamics; sludge; urban area; anaerobic bacterium; anaerobic growth; archaebacterium; drug effect; genetics; metabolism; microbiology; sewage; Methanococcaceae; Methanosaeta; Methanosarcina; Ammonia; Anaerobiosis; Archaea; Bacteria, Anaerobic; Nitrogen; RNA, Ribosomal, 16S; Sewage; Zeolites en_US


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