文档介绍：J. Agric. Engng Res. (1999) 73, 59}63
Article No. , available online at
Treatment of Dairy Wastewater Using an Up#ow Anaerobic Sludge Blanket
Reactor
H. N. Gavala; H. Kopsinis; I. V. Skiadas; K. Stamatelatou; G. Lyberatos
Department of Chemical Engineering, University of Patras and Institute of Chemical Engineering and High Temperature Chemical Processes,
GR-26500 Patras, Greece; e-mail: ******@
(Received 16 March 1998; accepted in revised form 5 November 1998)
ing from cheese-producing industries in Greece is high anic matter (about 40}60 g/l
Chemical Oxygen Demand, COD) since it generally contains discarded cheese-whey as well. This wastewater is
rich in easily biodegradable carbohydrates and has a relatively low content in suspended solids (1}5g/l).
Because of the anic content of dairy wastewater, anaerobic digestion is essentially the only viable
treatment method.
An Up#ow Anaerobic Sludge Blanket (UASB) reactor is a high rate treatment system, especially feasible
for treating soluble (containing low solids) wastewaters. A well-performing UASB reactor is characterized by
highly #occulated, well-settling, compact methanogenic sludge granules, resulting in a very high biomass
content.
The aim of this work is the study of a UASB reactor treating dairy wastewater. A UASB reactor of 10 l
useful volume was constru