Characterization, management and treatment of wastewater from white wine production.
During a 16 months period, the characteristics of the wastewaters generated in a Rias Baixas winery (Spain) producing white wine were determined: The characterization study showed that white wine wastewater had an average CODt and TSS values of 7.3 and 5.2 kg/m3, respectively being the ratio wastewater/wine produced of about 1.6-2.0 L/L and the ratio between load pollution and produced wine of 9.7 kg(CODt)/m3(WINE). A strategy for the management of wastes and wastewaters allowed for an important reduction of a 55% of wastewater generation to be achieved. In order to select a suitable technology for the treatment of wastewaters two configurations were tested at pilot scale: i) An Anaerobic Filter (AF) of 430 L followed by an activated sludge unit of 510 L and: ii) one activated sludge unit of 510 L. The results showed that the anaerobic/aerobic configuration was more flexible as it adapted quickly to the different loads and flows produced during the different phases through the year. Besides it allowed higher COD removals (98.5-99.2%) to be achieved and proved to permit a quicker re-start up after starvation periods.
Fernández
B
B
Department of Chemical Engineering, Univ. Santiago de Compostela, Spain. belen.fernandez@irta.es
Seijo
I
I
Ruiz-Filippi
G
G
Roca
E
E
Tarenzi
L
L
Lema
J M
JM
D001673:Biodegradation, Environmental; D005374:Filtration; D007220:Industrial Waste / Q000517:prevention & control*; D010865:Pilot Projects; D012722:Sewage; D014865:Waste Disposal, Fluid / Q000379:methods; D018508:Water Purification / Q000379:methods*; D014920:Wine
D007220:Industrial Waste; D012722:Sewage