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Ver términos de la licenciaCobos Becerra, Yazmin Lucero, et al. (2011). AEROBIC GRANULES FOR WASTEWATER AMMONIA NITROGEN AND NITRATE REMOVAL. Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 4, No. 1, 2011; 1 - 11. Recuperado de https://repositorio.unam.mx/contenidos/40460
Autor(es)
Cobos Becerra, Yazmin Lucero; González Martínez, Simón; González Barceló, Oscar
Tipo
Artículo Técnico-Profesional
Área del conocimiento
Ingenierías
Título
AEROBIC GRANULES FOR WASTEWATER AMMONIA NITROGEN AND NITRATE REMOVAL
Fecha
2011-06-27
Resumen
For 203 days, the performance of an aerobic granules laboratory-scale reactor for the removal of COD, ammonia and nitrate under different conditions was evaluated. The experiment was divided in four stages: 1) initially aerobic for the formation of the granules (0.36 kgCOD/kgTSS∙d); 2) aerobic/anoxic under a high organic load (0.43 kgCOD/kgTSS∙d); 3) aerobic/anoxic under a low organic load (0.26 kgCOD/kgTSS∙d) and 4) aerobic under a very low organic load (0.17 kgCOD/kgTSS∙d). The results show that under higher organic loading rate and aerobic conditions (stage 1) a dissolved COD removal of 88% was obtained. Under organic loadings between 0.15 and 0.2 kgCOD/kgTSS∙d (stage 2) the dissolved COD removal decreased near to 80%. The ammonia nitrogen removal resulted inversely proportional to the ammonia-loading rate. With loads close to 0.01 kgNH4-N/m3∙d, ammonium removal of approximately 90% was obtained and with loads near 0.04 kgNH4-N/m3∙d the nitrogen removal decreased to 10%. Under alternating aerobic/anoxic conditions, with organic loads from 0.26 and 0.43 kgCOD/kgTSS∙d, complete denitrification without the addition of an external carbon source was not achieved.Key Words: Aerobic granules, denitrification, nitrification, sequential airlift reactor.
Tema
Gránulos aerobios; desnitrificación; nitrificación; SBR airlift; Aerobic granules; denitrification; nitrification; sequential airlift reactor
Idioma
spa
ISSN
ISSN: 0718-378X
