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Anaerobic digestion kinetics of wine‐distilleries wastewaters
Author(s) -
Sales D.,
Valcarcel M. J.,
Romero L. I.,
De La Ossa E. Martinez
Publication year - 1989
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280450208
Subject(s) - anaerobic digestion , pulp and paper industry , chemical oxygen demand , fermentation , wine , anaerobic exercise , chemistry , hydraulic retention time , bioreactor , environmental science , methane , substrate (aquarium) , steady state (chemistry) , waste management , food science , wastewater , environmental engineering , biology , engineering , ecology , physiology , organic chemistry
Experimental results of anaerobic digestion of wine‐distilleries wastewaters are compared with those obtained from two theoretical kinetic models: the substrate utilization model and the methane fermentation model. Both models predict accurately the performance of this depurative process, except at retention times less than 3 days, because the systems works under non‐steady state conditions. For depuration levels greater than 95%, optimum retention time is 6 days, and methane volumes (at STP) produced per gram of substrate added to the digester are 0.24 dm 3 g −1 chemical oxygen demand.