RT info:eu-repo/semantics/masterThesis
T1 Wasterwater Preteatment with membranes .  Pretatamiento de agua residual urbana mediante filtración con membranas
A1 Rivera Mejía, Fanny Maritza
A2 Universidad de Valladolid. Escuela de Ingenierías Industriales
K1 Ingeniería ambiental
K1 Aguas residuales urbanas - Depuración
AB Direct membrane filtration of municipal wastewater from the city of Valladolid, Spain using an ultrafiltration membranewas investigated to concentrate the particulate organic matter. This is a physical process at 13-15 ºC that can beused as pretreatment for wastewater. This pretreatment together with an anaerobic process at low temperature couldreplace the active sludge process. In the new scheme proposed the permeated from the membrane would go to aposterior anaerobic treatment (UASB reactor operating under psychrophilic conditions) and the accumulated solidswould be treated by an anaerobic digestion at 35ºC (mesophilic). The aim of this study was to evaluate themembrane filtration conditions. On the lower region of the membrane module results of TCOD 81.842gO2/L,45.18gTS/L and 38.03gVS/L were reached. The permeate flux was 13.44 L/m2h with a filtration cycle of 7.75min(backwash time (15s), relaxation (5s), filtration (7.5min.) and a pausing time (5s), and a velocity of the gas 54.57m/h.The range for filtration TMP was 471 to 709.33 mbar. The average removal rate for TSS and VSS was 96.26% and96.20% respectively and the specific methane production of the accumulated VS was 246.37 mLCh4/gSVfed and theTCOD average removal rate was 46.10%.Keywords:Direct Membrane Filtration, Recovery of Organic Matter, Municipal Wastewater, Accumulated Solids, and Anaerobicdigestion 35 ºC.   Filtración directa con membranas de agua residual urbanaa de Valladolid, España mediante ultrafiltración  para concentrar la mateia orgánica particulada. Es un proceso físico entre 13-15 º C que puede ser utilizado como un pretratamiento de agua residual. Este pretratamiento junto con un proceso anaróbico a baja temperatura podría reemplazar el proceso convencional de fangos activos. En el esquema propuesto, el permeado de la membrana se trataría bajo una digestión anaeróbia a 35ºC (mesofílica)
YR 2014
FD 2014
LK http://uvadoc.uva.es/handle/10324/11719
UL http://uvadoc.uva.es/handle/10324/11719
LA spa
NO Departamento de Ingeniería Química y Tecnología del Medio Ambiente
DS UVaDOC
RD 17-jul-2024