- -

Estudio sobre nitritación parcial en frío inoculada mediante nitrificación de lodos municipales

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Estudio sobre nitritación parcial en frío inoculada mediante nitrificación de lodos municipales

Show simple item record

Files in this item

dc.contributor.advisor Iborra Clar, María Isabel es_ES
dc.contributor.author Hurtado Abellán, Javier es_ES
dc.date.accessioned 2020-04-01T07:51:24Z
dc.date.available 2020-04-01T07:51:24Z
dc.date.created 2019-09-30
dc.date.issued 2020-04-01 es_ES
dc.identifier.uri http://hdl.handle.net/10251/139942
dc.description.abstract [EN] This thesis develops an alternative process to nitrification/denitrification (N/DN) for nitrogen removal from municipal sewage at temperatures between 13-26ºC, due to drawbacks of N/DN systems: high consumption of energy and organic carbon, and production of a great amount of sludge. The partial nitritation (PN) start-up from fully nitrifying municipal sludge was studied through a pilot-scale sequencing batch reactor (SBR) fed with contaminated tap water by ammonium sulfate ((NH4)2SO4), which simulated real sewage from anaerobic digestion. The analysis of the samples by using several tests (nitrogen test, kinetic test and volatile suspended solids test) and the control of certain parameters (pH, dissolved oxygen (DO), ammonium concentration in the influent (TAN), etc.) were carried out to keep the process under stable conditions and to know the system behaviour in the nitrogen removal at low temperatures. The final challenge was to generate a suitable effluent for the subsequent anammox step with an ammonium conversion between 50-57% and a high suppression of the activity of nitrite oxidizing bacteria (NOB) by the growth of ammonium oxidizing bacteria (AOB), the limitation on the duration of the aerobic SBR phase and the control of the solid retention time (SRT). After an exhaustive analysis of the results, the success of the research was confirmed since the effluent from the pilot plant showed an acceptable NOB inhibition with an average nitrite accumulation (NAR) of 89% and a partial conversion of ammonium to nitrite through a final ammonium nitrogen conversion between 41-62% and a N-NO2 - /N-NH4 + ratio of 1.20±0.30; in spite of a low NOB activity in the reactor and the loss of biomass due to excess sludge washout in the effluent. To overcome these small limitations in the future, several improvements have been suggested. On the basis of the above, this study provides a good background for the next research on the anammox reaction at low temperatures, which is going to be carried out by the Department of Water Technology and Environmental Engineering of University of Chemistry and Technology (UCT) from Prague (Czech Republic). es_ES
dc.description.abstract [ES] Esta tesis desarrolla un proceso para eliminación de nitrógeno de agua residual municipal a bajas temperaturas (13-26 ºC). En este proyecto, se estudia la puesta en marcha de la nitritación parcial a partir de lodos municipales totalmente nitrificantes (pH, rendimiento de operación, temperatura, sólidos suspendidos, etc.) para producir un efluente apropiado para el posterior anammox y remplazar la nitrificación/desnitrificación con mayor consumo energético en el tratamiento de agua residuales. es_ES
dc.language Inglés es_ES
dc.publisher Universitat Politècnica de València es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Nitritación parcial es_ES
dc.subject Tratamiento de agua residual es_ES
dc.subject Lodos municipales es_ES
dc.subject Eliminación de nitrógeno es_ES
dc.subject Partial nitritation es_ES
dc.subject Wastewater treatment es_ES
dc.subject Municipal sludges es_ES
dc.subject Nitrogen removal es_ES
dc.subject Low temperatures es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.subject.other Máster Universitario en Ingeniería Química-Màster Universitari en Enginyeria Química es_ES
dc.title Estudio sobre nitritación parcial en frío inoculada mediante nitrificación de lodos municipales es_ES
dc.type Tesis de máster es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Hurtado Abellán, J. (2019). Estudio sobre nitritación parcial en frío inoculada mediante nitrificación de lodos municipales. http://hdl.handle.net/10251/139942 es_ES
dc.description.accrualMethod TFGM es_ES
dc.relation.pasarela TFGM\112763 es_ES


This item appears in the following Collection(s)

Show simple item record