In this study, since shock organic loading rates were applied
before the UASB reactor reached steady state conditions,
low COD removal efficiencies were obtained at high
organic loadings. On the other hand, high color removal efficiencies
varying between 82 and 98% were observed even
at organic loading rates as high as 27 kgCODm−3 per day.
About 60, 97% maximum COD and color and 35, 89% maximum
COD and color removal efficiencies were observed
at loading rates varying between 5 and 23 kgCODm−3