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Título: | 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 |
Autor: | Montalvo, Silvio; Guerrero, Lorna; Borja Padilla, Rafael CSIC ORCID ; Cortés, Isel; Sánchez, Enrique; Colmenarejo Morcillo, Manuel F. CSIC | Palabras clave: | Influent COD Anaerobic fluidized bed reactors Chilean zeolite Process performance Inhibition |
Fecha de publicación: | 2010 | Editor: | Croatian Society of Chemical Engineers | Citación: | Chemical and Biochemical Engineering Quaterly 24(2): 219-226 (2010) | Resumen: | 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 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 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. | Versión del editor: | http://pierre.fkit.hr/hdki/cabeq/pdf/24_2_2010/Cabeq_2010_02_11.pdf | URI: | http://hdl.handle.net/10261/54566 | ISSN: | 0352-9568 | E-ISSN: | 1846-5153 |
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