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Open Access item 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
Borja Padilla, Rafael
Colmenarejo Morcillo, Manuel F.
|Keywords:||Influent COD, Anaerobic fluidized bed reactors, Chilean zeolite, Process performance, Inhibition|
|Publisher:||Croatian Society of Chemical Engineers, Slovenian Chemical Society and Austrian Association of Bioprocess Technology|
|Citation:||Chemical and Biochemical Engineering Quaterly 24(2): 219-226 (2010)|
|Abstract:||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
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
for GRWW and up to around 22 g L
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.|
|Publisher version (URL):||http://pierre.fkit.hr/hdki/cabeq/pdf/24_2_2010/Cabeq_2010_02_11.pdf|
|E-ISSNmetadata.dc.identifier.doi = DOI:||1846-5153|
|Appears in Collections:||(IG) Artículos|
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