Izvorni znanstveni članak
Effect of the Influent COD Concentration on the Anaerobic Digestion of Winery Wastewaters from Grape-Red and Tropical Fruit (Guava) Wine Production in Fluidized Bed Reactors with Chilean Natural Zeolite for Biomass Immobilization
S. Montalvo
; Dept. of Chemical Engineering, University of Santiago de Chile, Ave. Bernardo O’Higgins 3363, Santiago de Chile
L. Guerrero
; Dept. of Chemical, Biotechnological and Environmental Processes, Federico Santa María Technical University Casilla 110 – V, Valparaíso, Chile
R. Borja
orcid.org/0000-0002-3699-7223
; Instituto de la Grasa (CSIC), Avenida Padre García Tejero 4, 41012 Sevilla, Spain
I. Cortés
; Environment Nacional Center, Chile University, Ave. Larraín 9975, La Reina, Santiago de Chile
E. Sánchez
; Centro de Ciencias Medioambientales (CSIC), Serrano 115 duplicado, 28006 Madrid, Spain
M. F. Colmenarejo
; Centro de Ciencias Medioambientales (CSIC), Serrano 115 duplicado, 28006 Madrid, Spain
Sažetak
The effect of the influent COD concentration on the performance of anaerobic fluidized bed reactors treating winery wastewaters from grape-red wine (GRWW) and guava wine production (GWW) was studied at laboratory scale. Two reactors were used: one treating GRWW (AFB1) and the other processing GWW (AFB2). The behaviour of these reactors packed with Chilean zeolite as biomass immobilization support was compared at mesophilic temperature (35 °C). Influent COD varied from γ = 1–24 g L–1 and the HRT was maintained constant at 1 day throughout the experiment. During the experiment, influent and effluent pH, TVFA, COD and methane gas production were determined. COD removal efficiency increased with the influent COD up to a maximum of around γ = 19 g L–1 for GRWW and up to around 22 g L–1 for GWW due to the increase
of the concentration of phenols. Process performance was slightly better with guava winery wastewater than with grape-red winery wastewater due its lower phenolic content. During the period of non-inhibition the methane yield was virtually constant.
Ključne riječi
Influent COD; anaerobic fluidized bed reactors; chilean zeolite; process performance; inhibition
Hrčak ID:
55045
URI
Datum izdavanja:
1.7.2010.
Posjeta: 1.881 *